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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
On Power System Frequency Control in Emergency Conditions
Type
JournalPaper
Keywords
frequency control- power system- robust performance- H∞- emergency condition-frequency response
Year
2008
Journal Journal of Electrical Engineering and Technology
DOI
Researchers Zhao Yang Dong ، Jason J. Ford ، Ledwich Gerard ، Hassan Bevrani

Abstract

Frequency regulation in off-normal conditions has been an important problem in electricpower system design/operation and is becoming much more significant today due to the increasing size,changing structure and complexity of interconnected power systems. Increasing economic pressures forpower system efficiency and reliability have led to a requirement for maintaining power systemfrequency closer to nominal value. This paper presents a decentralized frequency control framework using a modified low-order frequency response model containing a proportional-integral (PI) controller. The proposed framework is suitable for near-normal and emergency operating conditions. An H∞ control technique is applied to achieve optimal PI parameters, and an analytic approach is used to analyse the system frequency response for wide area operating conditions. Time-domain simulations with a multi-area power system example show that the simulated results agree with those predicted analytically.