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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
Decentralized Optimal Frequency Control in Autonomous Microgrids
Type
JournalPaper
Keywords
Autonomous microgrids, active power sharing, decentralized secondary control, frequency control, linear quadratic regulator
Year
2019
Journal IEEE TRANSACTIONS ON POWER SYSTEMS
DOI
Researchers Hassan Bevrani ، Josep M. Guerrero ، Mohammad Fathi ، Yazdan Batmani ، Qobad Shafiee ، Mobin Naderi ، Yusef Khayat

Abstract

This paper proposes a decentralized optimal secondary controller for frequency regulation and accurate active power sharing in autonomous microgrids. This optimal controller does not require any communication network. Unlike most of the existing works, a systematic approach of secondary controller design is introduced based on a quadratic cost function in the form of a linear quadratic regulator (LQR) solution. The design procedure only depends on the cut-off frequency of the power calculation filter. Decentralized behavior, simplicity, optimality based on a quadratic cost function, and straight forward design procedure are the main advantages of this approach. Using the proposed solution, frequency can be restored immediately following any disturbance in the system, without need of any event-driven and time-dependent protocol. Experimental results validate the effectiveness of the proposed controller