Robust PID based power system stabiliser: Design and real-time implementation |
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Authors: | Hassan Bevrani Takashi HiyamaHossein Bevrani |
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Affiliation: | a Department of Electrical and Computer Eng., University of Kurdistan, Sanandaj, Iran b Department of Electrical and Computer Eng., Kumamoto University, Kumamoto, Japan c Department of Statistics, University of Tabriz, Tabriz, Iran |
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Abstract: | This paper addresses a new robust control strategy to synthesis of robust proportional-integral-derivative (PID) based power system stabilisers (PSS). The PID based PSS design problem is reduced to find an optimal gain vector via an H∞ static output feedback control (H∞-SOF) technique, and the solution is easily carried out using a developed iterative linear matrix inequalities algorithm. To illustrate the developed approach, a real-time experiment has been performed for a longitudinal four-machine infinite-bus system using the Analog Power System Simulator at the Research Laboratory of the Kyushu Electric Power Company. The results of the proposed control strategy are compared with full-order H∞ and conventional PSS designs. The robust PSS is shown to maintain the robust performance and minimise the effect of disturbances properly. |
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Keywords: | Power system stabiliser PID Static output feedback control LMI Robust performance |
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