Tranient Stability Enhancement in Microgrids Including Inverter Interfaced Distributed Generations

Publish Year: 1394
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:

JR_JIAE-12-3_001

تاریخ نمایه سازی: 13 تیر 1396

Abstract:

With increasing the presence of Microgrids (MGs) in the power systems, investigationg the MG stability during transient faults is necessary. Thisstudy investigates the transient stability analysis of a MG supplied by multiple multiple inverter interfaced distributed generations (IIDGs) during fault. The transient stability of a MG is highly depends on the IIDGs control strategy.A MG, simulated on Matlab/Simulink. including three IIDGs and two local loads connected to the IEeE 37-node distribution system is considered as test system. Simulation results show that the MG may lose its stability due to the IIDG s transient over-currents durng fault.By adding a trnsient current control loop to the voltage source inverter (VSI) control stategy, the IIDG s output currents are limited during fsult.In the connected mode, an external fault is applied to the MG. By using an appropriate tuninig based on fuzzy logic method, the transient loop controller coefficients is optimally tuned. The simulations results show the good performance and fast dynamic of the proposed control approach: also the transient stability enhancement of MG, obviously.

Authors

S Shokoohi

MSC-Instrumentation and Control Unit, Iranian Oil Pipelines and Telecommunication Company, Kermanshah, Iran

H. Bevrani

Associate PROFESSOR-Departmant of Electrical and Computer Engineering, Faculty of Electrocal Engineering, University of Kurdistan,Sanandaj, Oran

J Moshtagh

Associate PROFESSOR-Departmant of Electrical and Computer Engineering, Faculty of Electrocal Engineering, University of Kurdistan,Sanandaj, Oran

S Ahmadi

Bachelor of Scince-Departman of Electrical and Computer Engineering,Urmia University,Urmia,Iran