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Hassan Bevrani

Hassan Bevrani

Academic rank: Professor
ORCID:
Education: PhD.
ScopusId: 55913436700
Faculty: Faculty of Engineering
Address: Dept. Of Electrical and Computer Eng, University of Kurdistan, Allameh Hamdi Blvd, Sanandaj PO Box 416, P. C: 66177-15175, Kurdistan, Iran
Phone: +98-87-33624001

Research

Title
Transient stability enhancement in microgrids including inverter interfaced distributed generation
Type
JournalPaper
Keywords
Transient Stability, Inverter Interfaced Distributed Generation, Fault Current, Generalized Droop
Year
2015
Journal مهندسي برق و الكترونيك ايران
DOI
Researchers Shoresh shokoohi ، Saleh Ahmadi ، Hassan Bevrani ، Jamal Moshtagh

Abstract

With increasing the presence of Microgrids (MGs) in the power systems, it has become urgent to investigate the MG stability during transient faults. This study investigates the transient stability analysis of a MG supplied by 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 IIDG 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 under fault conditions. By adding a transient current control loop to the voltage source inverter (VSI) control strategy, the IIDG output currents are limited during fault. In the connected mode, an external fault is applied to the MG. With appropriate tuning of the transient loop controller coefficients, the good performance and fast dynamic of the proposed control approach is shown. The simulations results show the transient stability enhancement of the MG obviously.