http://ele.aut.ac.ir/~gharehpetian/

G. B. Gharehpetian received his BS, MS and Ph.D. degrees in electrical engineering in 1987, 1989 and 1996 from Tabriz University, Tabriz, Iran and Amirkabir University of Technology (AUT), Tehran, Iran and Tehran University, Tehran, Iran,  respectively, graduating all with First Class Honors. As a Ph.D. student, he has received scholarship from DAAD (German Academic Exchange Service) from 1993 to 1996 and he was with High Voltage Institute of RWTH Aachen, Aachen, Germany.

He has been holding the Assistant Professor position at AUT from 1997 to 2003, the position of Associate Professor from 2004 to 2007 and has been Professor since 2007. The power engineering group of AUT has been selected as a Center of Excellence on Power Systems in Iran since 2001. He is a member of this center.

He was selected by the Ministry of Science Research and Technology (SMRT) as the distinguished professor of Iran, by IAEEE (Iranian Association of Electrical and Electronics Engineers) as the distinguished researcher of Iran, by Iran Energy Association (IEA) as the best researcher of Iran in the field of energy, by the SMRT as the distinguished researcher of Iran, and by The Academy of Science of the Islamic Republic of Iran as the distinguished professor of electrical engineering and was awarded the National Prize in 2008, 2010, 2018, 2018 and 2019, respectively. Based on the Web of Science database (2005-2015), he is among world’s top 1% elite scientists according to ESI (Essential Science Indicators) ranking system.

Prof. Gharehpetian is distinguished, senior and distinguished member of CIGRE, IEEE and IAEEE, respectively. Since 2004, he has been the Editor-in-Chief of the Journal of IAEEE.

He is the author of more than 1000 journal and conference papers. His teaching and research interest include Smart Grid, Microgrids, FACTS and HVDC Systems, Monitoring of Power Transformers and its Transients.

Education:

-Ph.D. in Electrical Engineering, Tehran University, Tehran, IRAN, April 1996

-M.S. in Electrical Engineering, Amirkabir University, Tehran, IRAN, Sep. 1989

-B.S. in Electrical Engineering, Tabriz University, Tabriz, IRAN, Feb. 1987

Academic Positions:

-Professor (since 2007) Amirkabir University of Technology (AUT), Electrical Engineering Department

-Associate Professor (2004 - 2007) AUT, Electrical Engineering Department

-Assistant Professor (1997 - 2003) AUT, Electrical Engineering Department

-Lecturer (1989 – 1996), AUT, Electrical Engineering Department

Teaching:

Undergraduate Courses: Future Power System Elements, Electric Machinery, Power Plants and Power Electronics

Graduate Courses: Microgrids and Smart Grid, Distributed Generation, HVDC Transmission, FACTS Devices and Power System Transients

Research Interests:

Smart Grid, DGs, Monitoring of Power Transformers, FACTS Devices, HVDC Systems, Power Electronic Converters, Power System Transients

Languages:

Armenian: Native and bilingual proficiency

Persian: Bilingual proficiency

German: Professional working proficiency

English: Professional working proficiency

Executive Positions:

-Vice-Dean for Research and Postgraduate Studies, Electrical Engineering Department, AUT (2018-present)

-Vice President for Research, Niroo Research Institute (NRI), Ministry of Energy (Oct. 2014-2017)

-Director of Grand (National) Project, Iranian Smart Grid at AUT (Sep. 2012-present)

-Director of Industrial Relation Office of AUT (Nov.2005-2008)

-Head of Iran Grid Secure Operation Research Center at AUT (Oct. 2005-present)

-Director of Electrical Engineering Committee of the International Khwarizmi Award, Iranian Research Organization for Science and Technology (IROST), Ministry of Science Research and Technology (2005)

-Research Deputy of  Center of  Excellence on Power Systems at AUT (April 2004- 2006)

-Head of Power Engineering Group, Electrical Engineering Department, AUT (Oct. 2001-Oct. 2003)

Selected Professional Experiences:

-Member of board of trustee, Niroo Research Institute (NRI), Ministry of  Energy (2014-2018)

-Member of education, research and technology council,  Ministry of Energy (2013-present)

-Member of research committee of Iran Power Development Co. (IPDC) (2011-2015)

-Member of central research committee of Iran Grid Management Co. (IGMC)  (2006-2008)

-Member of research council of Zob-e Ahan Co. (2006-2008)

-Scientific staff member of Tehran Regional Electric Co. (TREC)  (April 2005-Dec. 2017)

-Member of Center of  Excellence on Power Systems  (since 2001)

-Senior councilor of  Iran Transformer Research Institute (ITRI) (1999-2005)

-Member of central research committee of Tehran Regional Electric Co. (TREC)  (1999-2004) (2007-2017)

-Member of research council of power generation department of Niroo Research Institute (NRI), Iran Energy Ministry (1999-2004) 

-Senior researcher and project manager,  Niroo Research Institute (NRI) (1998-2006)

Academic Awards and Honors:

-Distinguished Professor of Electrical Engineering selected by The Academy of Sciences of the Islamic Republic of Iran (2019)

-Distinguished researcher of Iran selected by the Ministry of Science, Research and Technology (SMRT) and awarded by the Vice-president of Iran (2018)

-Best researcher and prize winner all over Iran in the field of energy, selected by Iran Energy Association (IEA) (2018)

-Among world’s top 1% elite scientists according to ESI (Essential Science Indicators) ranking system based on the ISI Web of Science database (2005-2015)

-Distinguished researcher and prize winner all over Iran, selected by Iranian Association of Electrical and Electronics Engineers (IAEEE) (2010)

-Distinguished professor and prize winner all over Iran, selected by MSRT and awarded by the President of Iran (2008)

-Scholarship from German Academic Exchange Service (DAAD),  as a visiting Professor in the University of Stuttgart, Stuttgart, Germany (Summer 2003)

-Scholarship from DAAD, as a visiting Professor in the University of Stuttgart, Stuttgart, Germany (Summer 2000)

-Scholarship from DAAD,  as a Ph.D. Student in RWTH Aachen, Aachen, Germany (1993-1996)

-First rank among graduated Ph.D. students, Tehran University, in 1996

-First rank among graduated M.S. students, Amirkabir University of Technology (Tehran ‎Polytechnic), in 1989

-First rank among graduated B.S. students, Tabriz University, in 1987

Patents:

[26] Image Possessing Procedure for Simultaneous and Accurate Detection of a Few Radial Mechanical Defects in HV Transformer Winding, Registers under No. 97948 in Iran, Feb. 16, 2019

[25] Sinusoidal Sending Wave Step by Step Procedure in Hyperboloid Method for Detecting Power Transformer HV Winding Radial Defects, Registers under No. 95224 in Iran, March 5, 2018

[24] Power Transformers Winding Earth Fault Detection System Based on Magnetic Field Measurement, Registers under No. 95021 in Iran, Feb. 17, 2018

[23] Dielectric Window for Transformer Winding Radar Imaging, Registers under No. 95040 in Iran, Feb. 17, 2018

[22] Detection of Radial Deformations of Transformers, Registered under No. US 2017-0356733 A1, USPTO, in USA, Dec. 14, 2017

[21] Sinusoidal Sending Wave Step by Step Variations Procedure for Detection of Power Transformer HV Winding Convex and Concave Mechanical Defects, Registered under No. 91648 in Iran, March 15, 2017  

[20] Hardware System for Reduction of Power Transformer Winding Axial Displacement Wrong Detection Due to PD During Radar Imaging, Registered under No. 90943 in Iran, Jan. 10, 2017

[19] Automatic Three Phase Current Compensator System Based on Loads Unbalance Recording, Registered under No. 90010 in Iran, Oct. 1, 2016

[18] Buck-Boost DC-DC Converter with Reduced Voltage Stress, Registered under No. 89543 in Iran, Aug. 9, 2016 

[17] Single Switch DC/DC Converter with Capability of Voltage Increase and Decrease, Registered under No. 89515 in Iran, Aug. 3, 2016 

[16] Fault Detection and HV Transformers Radial Deformation Detection Using Magnetic Fields of Their Winding, Registered under No. 89495 in Iran, Aug. 3, 2016 

[15] Parallel Single Phase Active Filter to Compensate Different Types of Disturbances in Different Operating Conditions, Registered under No. 89416 in Iran, July 25, 2016 

[14] Presentation of New Structure of Modules with 3 Voltage Sources and 4 Switches for Asymmetric/Symmetric Multilevel Voltage Source AC/DC Converters in Order to Reduce Converter Elements, Registered under No. 87819 in Iran, March 1, 2016 

[13] Device of Symmetric/Asymmetric Multi-level Voltage Source Inverter Based on Interleaved 3-Voltage Source and 4-Semiconductor Switch Modules in Order to Reduce Number of Used Devices, Registered under No. 87155 in Iran, Nov. 8, 2015 

[12] Symmetric and Asymmetric Multi-level Voltage Source Inverters Based on 4-Voltage Source and 6-Switch Modules in Order to Reduce Number of Power Electronic Devices, Registered under No. 87157 in Iran, Nov. 8, 2015 

[11] Measurement of Electrical and Magnetic Fields of Transformer HV Winding in and near Tank for Axial Displacement Detection, Registered under No. 85849 in Iran, 2015

[10] Sensor with Mach–Zehnder Interferometer Fiber Optic Interferometer for Axial Displacement Measurement of Power Transformers, Registered under No. 83503 in Iran, Aug. 6, 2014

[9] Ferroresonance Overvoltage Clipping Circuit Including Metal-oxide Arresters, Registered under No. 77241 in Iran, Oct. 17, 2012

[8] Software and Hardware Setup to Measure Axial Displacement of Transformer Winding using UWB Waves in Time Domain, Registered under No. 76808 in Iran, Sep. 18, 2012

[7] Transformer Winding Radial Deformation Estimation System based on Scattering Parameters Measurements, Registered under No. 76668 in Iran, Sep. 9, 2012

[6] Mechanical Defects Allocation in Transformer Windings Using Radar Imagining, Registered under No. 390090380 in Iran, Jan. 31, 2012

[5] Flexible distributed generation interfacing inverter with sliding mode controller, Registered under No. 65010 in Iran, June 6, 2010

[4] Power supply with a very high power factor, Registered under No. 56622 in Iran, Jan. 31, 2009

[3] Bidirectional power electronic transformer with maximum power point tracking capability for induction heating applications, Registered under No. 52876 in Iran, Sep. 17, 2008

[2] High current transformer with equal current distribution in parallel windings, Registered under No. 38305092 in Iran, July 31, 2004

[1] Passive 1 phase to 3 phase converter, Registered under No. 38012011 in Iran, Feb. 25, 2002

Journals Editorial Board Membership:

International Journals

-Editorial board of Journal of Energy and Sustainable Development, Bio-Byword Publication (Jan. 2019 - present)

-Advisory editorial board of International Journal of Electric Power & Energy Systems (JEPE), Elsevier Publications (Nov. 2016- present)

-Editorial board of International Journal of Energy and Environmental Engineering (IJEEE), Associate Editor (2015-present)

-Editorial board of Scientific World Journal, Lead Guest Editor of Special Issue on Smart Grid (2014-2015)

-Editorial board of Journal of Intelligent and Fuzzy Systems (JIFS), Associate Editor (2014-present)

-Editorial board of International Journal of Engineering, Science and Technology (IJEST) (2010- 2012)

National Journals

-Editorial board member of Iranian Journal of Science and Technology, Transactions of Electrical Engineering (2019- present)

-Editorial board member of Iranian Journal of Power Engineering, Birjand University (2015- present)

-Editorial Board of Journal of Electric Power System Engineering of Azarbaijan Shahid Madani University (2015-present)

-Editorial board of Journal of Operation and Automation in Electrical Engineering of Mohaghegh Ardabili University (2014-present)

-Editorial board member of Journal of Research in Quality, Iranian Society for Quality (2013-present)

-Editorial board member of Journal of Malek Ashtar University (2011- present)

-Editorial board member of Journal of Electrical Engineering, Ferdowsi Mashad University (2011- present)

-Editorial board member of Journal of Energy Management of Kashan University (2010- present)

-Editorial board member of Electrical Engineering Journal of Tabriz University  (2009- present)

-Editorial board member of Journal of IAEEE (April 2004- present)

-Editor-in-Chief of  Journal of IAEEE (Jan. 2004-present)

-Editorial board member of  Bargh Journal (Journal of NRI) (1998-Present)

Scientific Societies Membership:

-IRASA (Iranian Academics and Specialists Association in Germany), member (since 2014), member of board of directors (since 2016)

-IEEE Iran Section Power Chapter, founder member, secretary (Dec. 2013-June 2015), chair (since July 2015)

-Iranian Power Electronic Association (IPEA), founder member

-Iranian Productivity Association for Power Industry, founder member

-IAEEE ( Iranian Association of Electrical and Electronics Engineers), member (since 1992), senior member (since 2004), distinguished member (since 2011)

-IAEEE central board member (April 2003-April 2005) (April 2007-present)

-IEEE, Power Energy Society, member (since 2000) and senior member (since 2008)

-CIGRE (International Council on Large Electric Systems), Iran branch, member (since 2008), distinguished member (since 2018)

-Iranian Society of Advancement of Industry-Academia Collaboration, member (since 2007) and member of central board and secretary (2011- 2016)

-Iranian Wind Energy Association (IRWEA), founder member, memberand member of central board (2014-2017)

-Iranian National Electrotechnical Committee (INEC), member (2011-2015)

-Iranian Society of  Smart Energy Grids, founder member, member (since 2012) and member of central board (2012-2017), vice-chair (2018-present)

Published Journal Papers

[1] G. B. Gharehpetian, S.M. Kouhsari “AC-DC Load Flow”, Amirkabir Journal, of Science and Technology No. 15, 1990 ( in Persian).

[2] G. B. Gharehpetian, H. Mohseni, K. Lux, “Overvoltage Studies of Transformer Windings Using Monte Carlo Simulation of Lightning”, Journal of Technical Faculty of Tehran University, No. 55, 1995, pp. 73-86 ( in Persian)

[3] G. B. Gharehpetian, H. Mohseni and K. Moeller, “Hybrid Modeling of Inhomogeneous Transformer Windings for Very Fast Transient Overvoltage Studies”, IEEE Trans. on Power Delivery, Vol. 13, No. 1, Jan. 1998, pp. 157-163 (ISI-ranked)

[4] G. B. Gharehpetian, A. Der Minasian, “AC/DC Load Flow in Metro Power System”, Bargh Journal, Niroo Research Institute of Energy Ministry , No. 25, 1998 (in Persian)

[5] M. Farmad, S. Raie, G. B. Gharehpetian, H. Mohseni “Price Determination of Losses in Iranian Power System Considering Power Plant Contribution in Generation and Different Fuel Consumption”, Bargh Journal, NIROO Research Institute of Energy Ministry, No. 28, Winter 1999   ( in Persian)

[6] G. B. Gharehpetian, et. al. ( FACTS Working Group), “Flexible AC Transmission System and it’s  Application in Iranian Power System”, Bargh Journal, NIROO Research Institute of Energy Ministry, No. 29, Spring 2000 (in Persian)

[7] R. Barati, G. B. Gharehpetion, E. Sadeghian, S. Sorooshian, A. H. Miragha, “Suggestion of Methods for Energy Consumption Minimization in Auxiliary Service System of Steam Power Plants and Their Evaluation in NEKA Power Plant”, Bargh Journal, NIROO Research Institute of Energy Ministry, No. 30., Winter 2000-2001 (in Persian)

[8] E. Sadeghian, A. Dindar, G. B. Gharehpetian, “Efficency and Performance Improvement of Power Plants Electro-pumps With Different Flow Control Methods”, Bargh Journal, NIROO Research Institute of Energy Ministry, No. 32, Summer 2001 (in Persian)

[9] B. Tousi, G. B. Gharehpetian, M. Abedi, J.S. Moghani, “Eddy Current Losses Modeling for VFTO Studies of Power Transformers”, Amirkabir Journal of Science and Technology, Vol. 13, No. 51, Summer 2002, pp. 498-491 (in Persian)

[10] B. Tousi, G. B. Gharehpetian, M. Abedi, J.S. Moghani, “A Finite Element Technique for Calculating the AC Losses of Transformer Windings at High Frequencies”, Amirkabir Journal of Science and Technology, Vol. 13, No. 51, Summer 2002, pp. 95-104

[11] M. S. Naderi, G. B. Gharehpetian, M. Abedi, “An Accurate Method for Calculation and Estimation of  Series and Parallel  Resistances  of  Transformer Detailed Model based on Impulse Test Results”, Amirkabir Journal of Science and Technology, Vol. 14, No. 56-A, Fall 2003, pp. 1023-1032 (in Persian)

[12] K. Rahmani, G. B. Gharehpetian, M. Karrari, “Dynamic Stability Improvement of AC/DC Power System Using Fuzzy Variable Structure Controller”, Journal of Iranian Association of Electrical and Electronics Engineers (IAEEE), Vol. 1, No. 1, Spring 2004 (in Persian)

[13] A. Der Minassians, G. B. Gharehpetian, “Decoupled AC/DC Load Flow for Montecarlo Simulation of Metro Power Systems”, Iranian Journal of Science and Technology, Transaction B:Engineering, Vol.28, No. B3, June 2004, pp. 305-314. (ISI-ranked)

[14] S. Porkar, G. B. Gharehpetian, K. Feser, “A Disk-To-Disk breakdown and Arc Modeling Method for Fault Diagnosis of Power Transformers During Impulse”, Journal of Electrical Engineering, Springer Publication, Vol. 86, No. 5, 2004, pp. 261-265 (ISI-ranked)

[15] M. S. Naderi, G. B. Gharehpetian, M. Abedi, K. Feser, “An Accurate Method for Estimation of  Series and Parallel  Resistances  in Detailed Model of Transformer Winding Using Impulse Test Results”, Journal of Electrical Engineering, Springer Publication, Vol. 86, No. 5, 2004, pp. 255-260 (ISI-ranked)

[16] M. Sadeghian, M. Shafiee, G. B. Gharehpetian, M. Mardaneh and M. Hosseini, “Estimation of Transient Parameters of Transformer HV Winding Using Artificial Neural Networks”, WSEAS Transactions on Circuits and Systems, Issue 6, Vol. 3, Aug. 2004, pp. 1510-1512

[17] M. Nafar, M. Abedi, G. B. Gharehpetian, S. Taghipour and  B. Yousefpour, ”Locating Partial Discharge in Transformer by Wavelet”, WSEAS Transactions on Circuits and Systems, Issue 6, Vol. 3, Aug. 2004, pp. 1499-1503

[18] R. Noroozian, G. B. Gharehpetian, M. Abedi, S.H. Fathi, “UPQC Performance Improvement Using Combination of Instantaneous Power Balance and Synchronous Reference Frame Methods”, Journal of  Technical Faculty of Tabriz University, Vol. 32, No.1, Fall 2005 (in Persian)

[19] M. H. Nazemi, G. B. Gharehpetian, M. Shafiee,  “Selection of Proper Method for Order Reduction of  Power Transformer Detailed Model”, Amirkabir Journal of Science and Technology, Vol. 16, No. 63-A, Winter 2005, pp. 25-34 (in Persian)

[20] M. R. Banaei, S. H. Hosseini, S. Khanmohamadi and G. B. Gharehpetian, “Loss Reduction of Distribution System Using APLC ”, Elsevier Journal of Simulation Modeling Practice and Theory, Vol. 13 (2005) 169–178 (ISI-ranked)

[21] M. R. Banaei, S. H. Hosseini, S. Khanmohamadi, G. B. Gharehpetian, “Verification of a New Energy Control Strategy for Dynamic Voltage Restorer by Simulation”, Elsevier Journal of Simulation Modeling Practice and Theory, Vol. 14, Issue 2, February 2006, 112-125 (ISI-ranked)

[22] E. Babaei, S. H. Hosseini, G. B. Gharehpetian, “A New Topology for Multilevel Current Source Converters”, ECTI Transactions on Electrical Eng., Electronics and Communications, Vol. 4, No.1, Feb. 2006

[23] A. Ajami, S. H. Hosseini, S. Khanmohamadi, G. B. Gharehpetian, “Modeling and Control of C-UPFC  for Power System Transient Studies”, Elsevier Journal of Simulation Modeling Practice and Theory, Vol. 14, Issue 5, (July 2006) 481-676 (ISI-ranked)

[24] D. Nazarpour, S. H. Hosseini and G. B. Gharehpetian, “Damping of Generator Oscillations Using an Adaptive UPFC-based Controller”, American Journal of Applied Science, Vol. Issue 1, 1662-1668, 2006 (ISI-ranked)

[25] M. R. Banaei,  S. H. Hosseini, G. B. Gharehpetian, “Inter-line Dynamic Voltage Restorer Control using a Novel Optimum Energy Consumption Strategy”, Elsevier Journal of Simulation Modeling Practice and Theory, Vol. 14, Issue 7, (Oct. 2006) 989-999  (ISI-ranked)

[26] E. Babaei, S. H. Hosseini, G. B. Gharehpetian “A New Strategy for Determination of DC Voltage Levels in Asymmetrical Cascaded Multilevel Converters for Utility Applications”,  Journal of Iranian Association of Electrical and Electronics Engineers (IAEEE), Vol.3 , No.1, Spring and Summer 2006

[27] M. Pishvaee, S. H. Fathi, G. B. Gharehpetian “Effects of Load Harmonics Variation on Performance of Shunt Active Filters”, Amirkabir Journal of Science and Technology, Vol. 17, No. 64-A, Spring-Summer 2006, pp. 55-61

[28] E. Babaei, S. H. Hosseini, G. B. Gharehpetian, M. Tarafdar Haque and M. Sabahi, “Reduction of DC Voltage Sources and Switches in Asymmetrical Multilevel Converters Using a Novel Topology”, Elsevier Journal of Electric Power Systems Research, Vol. 77, (2007) 1073-1085 (ISI-ranked)

[29] R. Noroozian, M. Abedi, G. B. Gharehpetian and S.H. Hosseini, “Operation of Stand Alone PV Generating System for Supplying Unbalanced AC Loads” Iranian Journal of  Electrical and Electronics Engineering (IJEEE), Vol. 3, No. 3 and 4, July 2007

[30] A. Ajami, S. H. Hosseini, and G. B. Gharehpetian, “Modeling and Controlling  of UPFC for Power System Transient Studies”, ”, ECTI Transactions on Electrical Eng., Electronics and Communications, Vol. 5, No. 2, Aug. 2007

[31] M. G. Hosseini Aghdam, S. H. Fathi and G. B. Gharehpetian, “A New and Complete Solution of Harmonics Elimination Problem in a Multi-Level Inverter with Unequal DC Sources”, Journal of Electrical Systems, Vol.3 Issue 4, Dec. 2007, ISSN 1112-5209

[32] M. S. Naderi, G. B. Gharehpetian, T.R. Blackburn and M. Abedi “Pattern Classification of Internal Incipient Faults During Impulse Test Using Continuous Wavelet Analysis”, Journal of Electrical Engineering, Springer Publication, Vol. 90, No.2, Dec. 2007 (ISI-ranked)

[33] E. Babaei, S. H. Hosseini, G. B. Gharehpetian, and M. Sabahi, "Design and Implementation of a Three-Phase Matrix Converter with Snubber Circuit", Journal of Faculty of Engineering of Tabriz University, Vol. 35, No. 1, Winter 2008 ( in Persian)

[34] S. Ghasem Zadeh, S. H. Hosseini and  G. B. Gharehpetian,, "Unified Modeling of Wind Power Station Including DFIG  for Distributed Generation Studies", Journal of Faculty of Engineering of Tabriz University, Vol. 35, No. 1, Winter 2008 ( in Persian)

[35] M. S. Naderi, G. B. Gharehpetian, T.R. Blackburn and M. Abedi “Modeling and Detection of Transformer Internal Incipient Fault during Impulse Test”, IEEE Transactions on Dielectrics and Electrical Insulation, Vol. 15, No.1 Feb. 2008, pp. 284-291 (ISI-ranked)

[36] M. G. Hosseini Aghdam, S. H. Fathi and G. B. Gharehpetian, “Comparison of OMTHD and OHSW Harmonic Optimization Techniques in Multi-Level Inverter with Non-Equal DC Sources”, International Journal of Electrical Power and Energy Systems Engineering, No.2, Vol. 1, Spring 2008 (ISI-ranked)

[37] M. G. Hosseini Aghdam, S. H. Fathi and G. B. Gharehpetian, “Harmonic Optimization Techniques in Multi-Level Voltage-Source Inverter with Unequal DC Sources”, Journal of Power Electronics, Vol.8, No. 2, April 2008.

[38] S. M. H. Hosseini, M. Vakilian and G. B. Gharehpetian “Comparison of Transformer Detailed Models for Fast and Very Fast Transient Studies”, IEEE Transactions on Power Delivery, Vol. 23, No. 2, April 2008, pp. 733-741 (ISI-ranked)

[39] P. Karimifard G. B. Gharehpetian and S. Tenbohlen, “Determination of Axial Displacement Extent based on Transformer Winding Transfer Function Estimation Using Vector Fitting Method”, Journal of European Transactions on Electrical Power (ETEP),  Vol. 18, 2008, pages: 423-436 (ISI-ranked)

[40] R. Hosseini, M. Nourolahi and G. B. Gharehpetian, “Determination of OD Cooling System Parameters Based on Thermal Modeling of Power Transformer Winding”, Elsevier Journal of Simulation Modeling Practice and Theory, Vol. 16, Issue 6, July 2008, 585-596  (ISI-ranked)

[41] J. Olamaei, T. Niknam and G. B. Gharehpetian, “Application of Particle Swarm Optimization for Distribution Feeder Reconfiguration Considering Distributed Generation”, Elsevier Journal of Applied Mathematics and Computation, Vol.201, Issue 1-2, July 2008, pages: 575-586 (ISI-ranked)

[42] P. Karimifard and G. B. Gharehpetian "A new algorithm for localization of radial deformation and determination of deformation extent in transformer windings", the Elsevier Journal of Electric Power Systems Research (EPSR), Vol. 78, Issue 10, Oct. 2008, pages: 1701-1711 (ISI-ranked)

[43] M. Mohammadi and G. B. Gharehpetian, “Power System On-line Static Security Assessment by using Multi-Class Support Vector Machines” Journal of Applied Sciences, (JAS), Vol. 8, No. 12, July 2008, pages: 2226-2233 (ISI-ranked)

[44] R. Bagheri, J. S. Moghani, G. B. Gharehpetian “Harmonic Distortion Separation of the Customer and Utility using an Improved Load Model”, Amirkabir Journal of Science and Technology, Vol. 19, No. 68-A, Spring-Summer 2008, pp. 35-45 (in Persian)

[45] M. Mohammadi and G. B. Gharehpetian, “Application of Multi-Class Support Vector Machines for Power System on-line Static Security Assessment” ,  International Review of  Electrical Engineering (IREE), Vol. 3, No.3, May-June 2008 (ISI-ranked)

[46] A. Sakhavati  G. B. Gharehpetian and S.H. Hosseini, “Decentralized Power System Load-Frequency Control Using a Novel Cost Function Based on Particle Swarm Optimization (PSO)”, Scientific Bulletin of University of  PITESTI, Electronics and Computer Science Series, ISSN:1453-1119, No. 8,  Vol. 2, 2008, pp. 111-116

[47] M. G. Hosseini Aghdam, S. H. Fathi and G. B. Gharehpetian, “A Novel Switching Algorithm to Balance Conduction Losses in Power Semiconductor Devices of Full-Bridge Inverters”, Journal of European Transactions on Electrical Power, Vol. 18, Issue 7,  Oct. 2008, Pages: 694-708 (ISI-ranked)

[48] E. Babaei, S. H. Hosseini and  G. B. Gharehpetian, "Analytical and Experimental Assessment of Losses in  Matrix Converters", Journal of Faculty of Engineering of Tabriz University , Vol. 36, No. 1, Fall  2008 ( in Persian)

[49] O. Kavosinejad, M. Mohammadi Ardehali and G.B. Gharehpetian, “Techno-Economical Environmental Feasibility Studies of Optimal Utilization of  Distributed System of  Microturbine and Photovoltaic System Using PSO Algorithm”, Journal of Energy  Economics Studies, Fall 2008 (in Persian)

[50] R. Noroozian, M. Abedi, G. B. Gharehpetian and S. H. Hosseini, “Combined Operation of DC Isolated Distribution and PV Systems for Supplying Unbalanced AC loads”, Elsevier Journal of Renewable Energy, Vol. 34, No. 3, March 2009, pages 889-908 (ISI-ranked)

[51] M. G. Hosseini Aghdam, S. H. Fathi and G. B. Gharehpetian, “A Modified Harmonic Elimination Method with a Wide Range of Modulation Indices for Multi-Level Inverter with Unequal DC-Sources”, International Journal of Latin American Applied Research (LAAR), Vol. 39, No.1 , 2009, pages 65-74 (ISI-ranked)

[52] M. G. Hosseini Aghdam, S. H. Fathi, A. Zahedi and G. B. Gharehpetian, “Optimum Regulation of DC Sources in Cascaded Multi-Level Inverters”, International Journal for Computation and Mathematics in Electrical and Electronic Engineering  (COMPEL), Vol. 28, No. 2, 2009, pages 385-395 (ISI-ranked)

[53] O. Alizadeh Mousavi, M. Javad Sanjari, G. B. Gharehpetian and R. A. Naghizadeh, "A Simple and Unified Method to Model HVDC Links and FACTS Devices in DC Load Flow", Journal of Simulation- Transactions of the Society for Modeling and Simulation International, Vol. 85, No. 2, Feb. 2009 (ISI-ranked)

[54] M. Sabahi, S. H. Hosseini, M. B.  Bana Sharifian, A. Yazdanpanah Goharrizi and G. B. Gharehpetian, “Three Phase Dimmable Lighting System Using Bi-directional Power Electronic Transformer”,  IEEE Transactions on Power Electronics,  Vol. 24, No. 3, March 2009 (ISI-ranked)

[55] R. Baghery, J. S. Moghani, G. B. Gharehpetian and S. M. M. Mirtalaei  “Determination of Aggregated Load Power Consumption, under Non-Sinusoidal Supply Using an Improved Load Model”, Elsevier Journal of  Energy Conversion and Management, Vol. 50, Issue 6, June 2009 (ISI-ranked)

[56] R. Noroozian, M. Abedi, G. B. Gharehpetian and S.H. Hosseini, “A Novel Control Strategy for Load Converter of DC Isolated Distribution System under Unbalanced Loading Condition", Journal of Zhejiang University-SCIENCE A, Vo. 10, No. 6, 2009,  pages 890-899 (ISI-ranked)

[57] M. Mohammadi and G. B. Gharehpetian, “Application of Multi-Class Support Vector Machines for Power System on-line Static Security Assessment Using DT-based Feature and Data Selection Algorithms”, Journal of Intelligent and Fuzzy Systems, Vol. 20, Issue 3,  June 2009, pages 133–146 (ISI-ranked)

[58] M. Mohammadi and G. B. Gharehpetian, “On-line Voltage Security Assessment of Power Systems using Core Vector Machines”  Elsevier Journal of Engineering Applications of Artificial Intelligence, Vol. 22, Issue 4-5, June 2009, pages 695-701 (ISI-ranked)

[59] B. Abdi, A. H. Ranjbar, J. Milimonfared and G. B. Gharehpetian, “Reliability Considerations for Parallel Performance of Semiconductor Switches in High Power Switching Power Supplies”, IEEE Transactions on Industrial Electronics, Vol. 56, no. 6, June 2009, pages 2133-2139 (ISI-ranked)

[60] R. Noroozian, M. Abedi, G. B. Gharehpetian and S.H. Hosseini, “On-Grid and Off-Grid Operation of Multi-Input Single-Output DC/DC Converter based Fuel Cell Generation System”, Iranian Journal of Electrical and Electronic Engineering, Vol.5, No. 2, June 2009

[61] O. Alizadeh Mousavi, S. M. Farashbashi-Astaneh and G. B. Gharehpetian, “Improving Power System Risk Evaluation Method Using Monte Carlo Simulation and Gaussian Mixture Method”, Journal of Advances in Electrical and Computer Engineering, Vol. 9, No. 2, 2009 (ISI-ranked)

[62] M. Mohammadi and G. B. Gharehpetian, “Application of Core Vector Machines for On-line Voltage Security Assessment using a DT-based Feature Selection Algorithm”, Journal of IET, Generation, Transmission & Distribution, Vol. 3, Issue 8, 2009, pp. 701-712 (ISI-ranked)

[63] P. Karimifard G. B. Gharehpetian and S. Tenbohlen, “Localization of Winding Radial Deformation and Determination of Deformation Extent using Vector Fitting based Estimated Transfer Function”, Journal of European Transactions on Electrical Power, Vol. 19, Issue 5,  pp. 749-762, July 2009 (ISI-ranked)

[64] H. R. Baghaee, M. Mirsalim, A. Kashefi-Kaviani and G. B. Gharehpetian, “Optimal Allocation of Multi-type FACTS Devices to Improve Security and Reduce the Losses and Fault Level using Multi-Objective Particle Swarm Optimization ”,  International Review of Electrical Engineering (IREE), Vol. 4, No.6, Dec. 2009 (ISI-ranked)

[65] E. Babaei, S. H. Hosseini, G. B. Gharehpetian and M. Sabahi “Development of Modulation Strategies for Three-phase to Two-phase Matrix Converters”, International Journal of Power Electronics, Vol. 2, No. 1, 2010

[66] R. Noroozian, G. B.  Gharehpetian, M. Abedi and M. Mahmoodi,  "Grid-Tied and Stand-Alone Operation of Distributed Generation Modules Aggregated by Cascaded Boost Converters", Journal of Power Electronics, Vol. 10, No. 1, pp.97-105, 2010 (ISI-ranked)

[67] R. Bagheri, J. S. Moghani, G. B. Gharehpetian “Proposal of  Improved Model  and its Parameters Determination in order to Estimate Non-Sinusoidal Voltage Effects on Load Power Consumption ”, Sharif  Journal of Science and Technology, Vol. 25, No. 52,  Feb.-March 2010, pp21-29  ( in Persian)

[68] E. Babaei, S. H. Hosseini, and G. B. Gharehpetian “Reduction of THD and Low Order Harmonics with Symmetrical Output Current for Single-Phase AC/AC Matrix Converters”, International Journal of Electrical Power and Energy Systems, Vol. 32, Issue 3, 2010 (ISI-ranked)

[69] M. Mohammadi and G. B. Gharehpetian, “On-line transient stability assessment of large-scale power systems by using ball vector machines” Elsevier Journal of Energy Conversion and Management, Vol. 51, Issue 4, 2010, pp. 640–647 (ISI-ranked)

[70] R. Noroozian, M. Abedi, and G. B. Gharehpetian, “Premium Power Quality Using Combination of Microturbine Unit and DC Distribution System”, Journal of Electrical Engineering & Technology, Vol. 5, No. 1, pp. 103-115, March 2010 (ISI-ranked)

[71] H. Afshari, M. Nazari, M. Davari and G. B. Gharehpetian, “Dynamic Voltage Restorer with Sliding Mode Control at Medium Voltage Level”, International Review of Electrical Engineering (IREE), Vol. 5, No.2, March-April 2010 (ISI-ranked)

[72] Arash Khoshkbar Sadigh, S. H. Hosseini, M. Sabahi and G. B. Gharehpetian, “Double Flying Capacitor Multicell Converter Based on Modified Phase Shifted Pulse Width Modulation”, IEEE Transactions on Power Electronics, Vol. 25, No. 6, June 2010 (ISI-ranked)

[73] Z. Ghofrani Jahromi, M. Abedi, G.B. Gharehpetian and Masjed-Jamei, “Contingency Ranking Using Analytical Hierarchy Process for Calculating Bus Weighting Factors”, International Journal of  Power and Energy Systems (IJPES), Vol. 30, No. 2, 2010, pp. 86-93 (ISI-ranked)

[74] Arash Khoshkbar Sadigh, G. B. Gharehpetian  and S. H. Hosseini, “New Method for Estimation of Flying Capacitors Voltages in Stacked Multicell and Flying Capacitor Multicell Converter”,  Journal of Zhejiang University - SCIENCE C (Computer & Electronics), Vol. 11, No. 8, 2010, pp654-662 (ISI-ranked)

[75] S. Jazebi, H. R. Baghaee and G. B. Gharehpetian, “Optimal Variable-gain Neural Network-Based UPFC Controller by Means of Differential Evolution Algorithm”, International Review of Electrical Engineering (IREE), Vol. 5, No.3, May-June 2010 (ISI-ranked)

[76] M. Davari, A.R. Pourshoghi, M.R. Hajiahmadi, G. B. Gharehpetian, and S.H. Fathi, “New Hybrid Controller based on Sliding Mode modulation for  Inverter-based DG with Existing Fast Loads Changes”, International Review of Electrical Engineering (IREE), Vol. 5, No.3, May-June 2010 (ISI-ranked)

[77] A. Sakhavati, G. B. Gharehpetian and S. H. Hosseini, “QFT-based Load Frequency Controller design with GA-based Optimized Bias Coefficients”, International Review of Electrical Engineering (IREE), Vol. 5, No.3, May-June 2010 (ISI-ranked)

[78] I. Rahimi Pordanjani, H. Efranian Mazin, G. B. Gharehpetian, “Economic Effects of FACTS on the Transient Stability of Power Plants”, International Review of Electrical Engineering (IREE), Vol. 5, No.4, July-August 2010 (ISI-ranked)

[79] R. Noroozian, M. Abedi and G. B. Gharehpetian “Combined Operation of AC and DC Distribution System with Distributed Generation Units”, Journal of Electrical Engineering-Elektrotechnicky Casopis, Vol. 61, No. 4, Aug. 2010, 193–204 (ISI-ranked)

[80] M. Sabahi, A. G. Yazdanpanah, S. H.  Hosseini, M. B. B. Sharifian, and G. B.  Gharehpetian,  “Flexible Power Electronic Transformer”, IEEE Transactions on Power Electronics., Vol. 25, No. 8, August 2010, pp. 2159-2169 (ISI-ranked)

[81] R. Noroozian, M. Abedi, G. B. Gharehpetian and S.H. Hosseini, “Distributed Resources and DC Distribution System Combination for High Power Quality”, International Journal of Electrical Power and Energy Systems, Vol. 32, Issue 7, Sep. 2010, pp. 769–781 (ISI-ranked)

[82] M. Sabahi, S.H. Hosseini, M.B. Sharifian, A. Y.Goharrizi and  G.B. Gharehpetian , “Zero Voltage Switching Bi-directional Power Electronic Transformer”, IET Power Electronics, Vol. 3, Issue 5, Oct. 2010, pp.818-828. (ISI-ranked)

[83] M. Sabahi, S.H. Hosseini, M.B. Sharifian, A. Y.Goharrizi and  G.B. Gharehpetian , “Bidirectional Power Electronic Transformer with Maximum Power Point Tracking Capability for Induction Heating Applications”, IET Power Electronics, Vol. 3, Issue 5, Oct. 2010, pp.724-731. (ISI-ranked)

[84] P. Javanbakht, M. Noroozian, M. Abedi and G.B. Gharehpetian, ”The Enhancement of Transient Stability of a Wind Farm in a Weak Network Using SVC and OLTC”, International Journal of Distributed Energy Resources, Vol. 6, No. 4, Oct.- Dec. 2010, pp. 325-241

[85] M. Mohammadi, G. B. Gharehpetian and T. Niknam, “On-line Small Signal Stability Assessment of Power Systems Using Ball Vector Machines”, Electric Power Components and Systems, Vol. 38, No. 13, Nov. 2010, pp.1427-1445 (ISI-ranked)

[86] A. H. Ranjbar, B. Abdi, G. B. Gharehpetian and B. Fahimi, “A Comparative Study of Reliability in Single and two Stage PFC”, International Review of Electrical Engineering (IREE), Vol. 5, No. 5, October 2010 (ISI-ranked)

[87] M. Daryabak, J. Milimonfared, G. B. Gharehpetian, I. Salabeigi, M. Taheri, “Digital Controller Dynamic Response Modification of SDM-based PFC Converter”, International Review of Electrical Engineering (IREE), Vol. 5, No. 5, October 2010 (ISI-ranked)

[88] G. Mokhtari, G. B. Gharehpetian, R. Faraji-dana, M. A. Hejazi, “On-line Monitoring of Transformer Winding Axial Displacement Using UWB Sensors and Neural Network”, International Review of Electrical Engineering (IREE), Vol. 5, No. 5, October 2010 (ISI-ranked)

[89] H. Vahedi, A. Jalilvand , R. Noroozian and G. B. Gharehpetian, “Islanding Detection of Inverter-Based Distributed Generation Using a Hybrid SFS and Q-f Curve Methods”, International Review of Electrical Engineering (IREE), Vol. 5, No. 5, October 2010 (ISI-ranked)

[90] M. Mohammadi, G. B. Gharehpetian and M. Raoofat, “A New BVM based Approach to Transient Security Assessment”, European Transactions on Electrical Power (ETEP), Volume 20, Issue 8, pages 1163–1176, November 2010 (ISI-ranked)

[91] M. Nazari, M. Abedi,  G. B. Gharehpetian and H. Toodeji, “Photovoltaic Array, Fuel Cell and Electrolyzer Connection to Grid by Direct Non-linear Controlled H-Bridge Multilevel Inverter”, International Review of Automatic Control (IREACO), Vol. 3, No.6, November 2010

[92] S. Ghassem Zadeh, S.H. Hosseini and G.B. Gharehpetian, “Modeling of Wind Energy Conversion System Including DFIG for Distributed Generation Studies”, Journal of Iranian Association of Electrical and Electronics Engineers (IAEEE), Vol. 7, No. 2, Fall-Winter 2010

[93] K. Rahmani, Mehdi S. Naderi, G.B. Gharehpetian, Mohammad S. Naderi  and M. Karrari, “Damping of Low Frequency Oscillation in AC/DC Interconnected Power System Using LQG/LTR Controller Approach”, International Review of Electrical Engineering (IREE), Vol. 5, No. 6, Nov.-Dec. 2010 (ISI-ranked)

[94] M. Abdollahi Sofla and G. B. Gharehpetian, “Dynamic Performance Enhancement of Microgrids by Advanced Sliding Mode Controller”,  International Journal of Electrical Power and Energy Systems, Vol. 33, No.1, Jan. 2011, pp. 1-7 (ISI-ranked)

[95] H. Nafisi, M. Abedi and G.B. Gharehpetian, “Comparison of Bayesian and Fuzzy ARTmap Networks in Transformers PD Localization”, International Review of Electrical Engineering (IREE), Vol. 6, No. 2, March-April 2011 (ISI-ranked)

[96] M. A. Hejazi, G. B. Gharehpetian, G. R. Moradi, M. Mohammadi and H. A. Alehoseini, “Application of classifiers for On-line Monitoring of Transformer Winding Axial Displacement by Electromagnetic NDT”,  Electric Power Components and Systems, Vol. 39, Issue 4, April 2011, 387 (ISI-ranked)

[97] H. Vahedi, R. Noroozian, A. Jalilvand and G. B. Gharehpetian, “A New Method for Islanding Detection of Inverter-Based Distributed Generation Using DC link Voltage Control”, IEEE Transactions on Power Delivery,Vol. 26, No. 2, April 2011, pp.1176-1186 (ISI-ranked)

[98] J. Ebrahimi, S. H. Hosseinian and G.B. Gharehpetian, “Unit Commitment Problem Solution Using the Shuffled Frog Leaping Algorithm”, IEEE Transactions on Power Systems, Vol. 26, No. 2, May 2011, pp. 573-581 (ISI-ranked)

[99] A. Sakhavati, G. B. Gharehpetian and S. H. Hosseini, “Decentralized Robust Load-Frequency Control of Power System based on Quantitative Feedback Theory”, Turkish Journal of Electrical Engineering and Computer Sciences, Vol. 19, No. 4, 2011, pp.1-18 (ISI-ranked)

[100] A.J. Ghanizadeh, G. Mokhtari, M. Abedi, G.B. Gharehpetian, "Optimal Power Flow Based on Imperialist Competitive Algorithm" , International Review of Electrical Engineering (IREE), Vol.6, No. 4, Part B, June 2011,  (ISI-ranked)

[101] Aras Sheikhi, Mehdi S. Naderi, Ali Mohammad Ranjbar, G.B. Gharehpetian, Farahbakhsh Safe, "CHP Optimized Selection Methodology for a Multi-Carrier Energy System" International Review of Electrical Engineering (IREE), Vol.6, No. 4, Part B, June 2011,  (ISI-ranked)

[102] M. Sarhangzadeh, S. H. Hosseini, M. B. B. Sharifian, G. B. Gharehpetian, “Multi-Input Direct DC-AC Converter with High Frequency Link for Clean Power Generation Systems” IEEE Transactions on Power Electronics, Vol. 26, No. 6, June 2011 (ISI-ranked)

[103] M. A. Hejazi, G. B. Gharahpetian,  R. Farajidana, G. R. Moradi, M. Mohammadi and  H. A. Alehoseini, "A New On-line Monitoring Method of Transformer Winding Axial Displacement Based on Measurement of Scattering Parameters and Decision Tree",  Elsevier Journal of Expert Systems With Applications, Vol. 38, Issue 7, July 2011, pp. 8886-8893 (ISI-ranked)

[104] M. Nafar, G.B. Gharehpetian and T.Niknam, “A New Parameter Estimation Algorithm for Metal Oxide Surge Arrester”, Electric Power Components and Systems, Vol. 39 No. 7, July 2011, pp. 696-712 (ISI-ranked)

[105] A. Ashrafian, M. Rostami, G. B. Gharehpetian, “Discrimination Among Internal Incipient Faults, Internal Faults and Inrush Current of Transformer by using S-Transform”, International Review of Modelling and Simulation (IREMOS), Vol.4, No. 4, August 2011

[106] M. Nafar, G. B. Gharehpetian and T. Niknam, “Improvement of Estimation of Surge Arrester Parameters by Using Modified Particle Swarm Optimization”, Elsevier Journal of Energy, Vol. 36, Issue 8, Aug. 2011, pp: 4848-4854 (ISI-ranked)

[107] M. Mohammadi, S. H. Hosseinian, G. B. Gharehpetian, “Optimal Sizing of Micro Grid (MG) & Distributed Generation (DG) Units under Pool Electricity Market”, Journal of Renewable and Sustainable Energy, Vol. 3, Issue 5, Sep. 2011  (ISI-ranked)

[108] H. Vahedi, R. Noroozian, A. Jalilvand and G. B. Gharehpetian, “A New method to Utilize and Detect Islanding of Inverter-Based DGs “, Journal of Iranian Association of Electrical and Electronics Engineers (IAEEE), Vol. 8, No. 2, Fall-Winter  2011 pp. 17-27  (in Persian)

[109] M. Mohammadi, M. Raoofat, H. Marzooghi and G. B. Gharehpetian, “Nonlinear Multivariable Modeling of Solid Oxide Fuel Cells Using Core Vector Regression”, International Journal of Hydrogen Energy, Vol.36, Issue 19, Oct. 2011 pp. 12538-12548 (ISI-ranked)

[110] M. A. Hejazi, G. B. Gharehpetian, G. Moradi, H. A. Alehosseini, M. Mohammad, “On-line Monitoring of Transformer Winding Axial Displacement and its Extent Using Scattering Parameters and k-Nearest Neighbor Method”, IET Generation, Transmission & Distribution, Vol.5, Issue 8, Oct. 2011, pp. 824-832 (ISI-ranked)

[111] M. J. Sanjari, A. J. Ghanizadeh, and G.B. Gharehpetian, “Dual Functional Series Compensator to Reduce Fault Current in a Distribution System with DG Units”, International Journal of Engineering, Science and Technology (IJEST), Vol. 3, No.11, Nov. 2011, pp.15-27

[112] M. Farmad, S. Farhangi, S. Afsharnia and G. B. Gharehpetian, “Modeling and Simulation of VSC-based IPC as Fault Current Limiter and Power Flow Controller”, Journal of IET Generation, Transmission & Distribution, Vol. 5, Issue 11, Nov. 2011,  pp.1132-1140  (ISI-ranked)

[113] J. Ebrahimi, E. Babaei and G.B. Gharehpetian, “A New Topology of Cascaded Multilevel Converters with Reduced Number of Components for High-Voltage Applications”, IEEE Transactions on Power Electronics, Vol. 26, No. 11, Nov. 2011, pp.3109-3118 (ISI-ranked)

[114] M. Nafar, G. B. Gharehpetian and T. Niknam, “A Novel Parameter Estimation Method forMetal Oxide Surge Arrester Models”, Journal of SADHANA, Indian Academy Proceedings in Engineering Sciences, Vol. 36, Part 6, Dec. 2011, pp. 941-961   (ISI-ranked)

[115] M. Nafar, G. B. Gharehpetian and T. Niknam, “Using Modified Fuzzy Particle Swarm Optimization Algorithm for Parameter Estimation of Surge Arresters Models”, International Journal of Innovative Computing, Information and Control (IJICIC), Vol.8, No. 1 Jan. 2012 (ISI-ranked)

[116] K. Pourhossein, G. B. Gharehpetian, E. Rahimpour and B. N. Araabi, “A Probabilistic Feature to Determine Type and Extent of Winding Mechanical Defects in Power Transformers”, Elsevier Journal of Electric Power Systems Research (EPSR), Vol. 82, No. 1, Jan. 2012, pp.1-10 (ISI-ranked)

[117] M. Mohammadi, S. H. Hosseinian, G. B. Gharehpetian, “Optimization of Hybrid Solar Energy Sources/Wind Turbine Systems Integrated to Utility Grids as Micro Grid (MG) under Pool/Bilateral/Hybrid Electricity Market Using PSO”, Elsevier Journal of  Solar Energy, Vol. 86, Issue 1, Jan. 2012, pp.112-125 (ISI-ranked)

[118] M. Mohammadi, S. H. Hosseinian, G. B. Gharehpetian, “GA-Based Optimal Sizing of Microgrid and DG Units under Pool and Hybrid Electricity Markets”, International Journal of Electrical Power and Energy Systems (IJEPES), Vol. 35, Issue 1, Feb. 2012, pp. 83-92 (ISI-ranked)

[119] J. Ebrahimi, E. Babaei and G.B. Gharehpetian, “A New Multilevel Converter Topology with Reduced Number of Power Electronic Components”, IEEE Transactions on Industrial Electronics, Vol. 59, No. 2, Feb. 2012 (ISI-ranked)

[120] Ali Roghani Araghia, S. H. Hosseinian, G.B. Gharehpetian and B. Vahidi, “Employing TCPS for Suppressing Oscillations in Two-Area System Constitute of Wind Farm and Thermal System”, IEEJ Transactions on Electrical and Electronic Engineering (IEEJ Trans), Vol. 7, Issue 2, March 2012 pp. 130–135 (ISI-ranked)

[121] M. S. Naderi and G. B. Gharehpetian, “Overview on CHP-based DG Application in Iranian Industries with Rating Higher Than 1MW “, Journal of Sanat-e Bargh, No. 167, Spring 2012 (in Persian)

[122] Hamed Nafisi, M. Abedi and G. B. Gharehpetian, “Partial Discharge Localization using Transformer Detailed Model  and Bayesian and  FAM  Neural Networks“,  Journal of  Iranian Electric Industry Journal of Quality and Productivity, Vol. 1, No. 1, Spring 2012, pp. 46-56 (in Persian)

[123] S. Abedi, A. Alimardani, G. B. Gharehpetian, G. H. Riahy, S. H. Hosseinian, ” A Comprehensive Method for Optimal Power Management and Design of Hybrid RES-based Autonomous Energy Systems”, Renewable and Sustainable Energy Reviews, Vol. 16, Iissue 3, April 2012, pp.1577-1587 (ISI-ranked)

[124] Ali Yazdanpanah Goharrizi, S.H. Hosseini, M. Sabahi and G.B. Gharehpetian,  “Three-Phase HFL-DVR with Independently Controlled Phase”, IEEE Transactions on Power Electronics, Vol. 27,  No. 4, April 2012, pp.  1706- 1718 (ISI-ranked)

[125] Abdolaziz Ashrafian, Mehdi S. Naderi and G.B. Gharehpetian, “Characterization of Internal Incipient Faults in Transformers during Impulse Test Using Index Based on S-Matrix Energy and Standard Deviation”, IET Journal of Electric Power Applications, Vol. 6, Issue 4, April 2012,  p.225–232  (ISI-ranked)

[126] A. Ashrafian, M. Rostami, G. B. Gharehpetian and M. Gholamghasemi, "Application of Discrete S-Transform for Differential Protection of Power Transformers", International Journal of Computer and Electrical Engineering (IJCEE), Vol. 4, No. 2, April 2012, pp. 186-190

[127] A. Ashrafian, M. Rostami, G. B. Gharehpetian and S. S. Shafiee Bahnamiri, "Improving Transformer Protection by Detecting Internal Incipient Faults", International Journal of Computer and Electrical Engineering (IJCEE), Vol. 4, No. 2, April 2012, pp. 196-201