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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
Emulation of Virtual Inertia to Accommodate Higher Penetration Levels of Distributed Generation in Power Grids
Type
JournalPaper
Keywords
Adaptive control scheme, energy storage system, frequency nadir, high penetration, microgrid islanding
Year
2019
Journal IEEE TRANSACTIONS ON POWER SYSTEMS
DOI
Researchers Hassan Bevrani ، Arturo Román Messina ، Hêmin Golpîra

Abstract

A novel control scheme based on a new stochastic equivalent model of the power system, which provides flexible inertia constant to enable high penetration levels of microgrid (MG) generation, is proposed. The approach combines an adaptive energy storage system (ESS) dispatch strategy with an MG-controlled islanding scheme to provide frequency support for the host power grid. First, a center-of-gravity (COG) formulation of the inertia-control scheme is proposed, in which the unbalance torques between the control areas and the COG are used to reduce frequency deviations. An application example-based equivalent model of ESSs as seen from the grid side is then proposed that takes advantage of the ESS special attributes to contribute to inertial response. Simulation results on two test systems demonstrate the efficiency of the proposed control scheme to increase the host grid ability to efficiently integrate multiple MGs. Numerical tests suggest that the proposed control scheme increases system penetration level at least by 12%, which justifies the use of inertia emulation techniques to accommodate higher levels of distributed generation.