Lead-lag PSS design based on H control theory and genetic algorithm

Yuichi Morishita*, Keisuke Suzuki, Shinichi Iwamoto

*Corresponding author for this work

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    8 Citations (Scopus)


    The aim of this paper is to describe how to reduce the dimension of a power system stabilizer (PSS) based on H control theory. In recent years, robust PSS designs that adopt an H controller have been investigated in order to guarantee the performance when the state of the system configuration and power flow change. However the H controller has not been widely adopted into practical use because of the intricate nature of its theory and structure. We consider the H control problem under the condition that PSS structure is fixed to be a lead-lag compensator. We optimize the parameters of the Lead-Lag PSS by a genetic algorithm that has an evaluation function which takes into account a closed loop H norm and a desired response. In this way, we design a PSS which has a conventional controller structure and guarantees its control performance.

    Original languageEnglish
    Title of host publicationIEEE Power and Energy Society General Meeting
    Publication statusPublished - 2012
    Event2012 IEEE Power and Energy Society General Meeting, PES 2012 - San Diego, CA
    Duration: 2012 Jul 222012 Jul 26


    Other2012 IEEE Power and Energy Society General Meeting, PES 2012
    CitySan Diego, CA


    • Dimensional reduction
    • Genetic Algorithm
    • H control theory
    • Lead-lag compensation
    • Power system stabilizer

    ASJC Scopus subject areas

    • Energy Engineering and Power Technology
    • Nuclear Energy and Engineering
    • Renewable Energy, Sustainability and the Environment
    • Electrical and Electronic Engineering


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