대한전기학회논문지:시스템및제어부문D (The Transactions of the Korean Institute of Electrical Engineers D)

대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

LMI 최적화기법을 적용한 $H_{\infty}$제어 시스템의 전력계통 안정화장치(PSS) 설계

H_{\infty} Control Synthesis for Power System Design using LMI Optimization Method

  • Jeong, Dae-Won (Dept. of Electrical Engineering, Honam University) ;
  • Ju, Un-Pyo (Dept. of Electrical Engineering, Chungnam National University) ;
  • Kim, Geon-Jung (Dept. of Electrical Engineering, Chungnam National University)
  • 발행 : 2000.04.01
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초록

This paper presents the application of H$\infty$ control synthesis using LMI optimization method to power system stabilizer(PSS) design. Since power system is usually operated under circumstance of unmeasurable uncertainties and external disturbances, the improvement of small signal stability becomes one of the most important issue for securing system stability and preventing low frequency oscillation phenomena. The LMI optimized H$\infty$ PSS provides robust performance and guarantees the internal stability under these operating conditions. The global optimal H$\infty$ norm is found using LMI convex optimization method which is more systematic than standard two Riccati solution method. The design results are simulated for a case study. We verified that the LMI method shows the best performance characteristic smong standard Riccati method and conventional lead/lag method.

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참고문헌

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