Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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Tuning Algorithm for PID Controller Using Model Reduction in frequency Domain

주파수 영역에서의 모델 축소를 이용한 PID 제어기의 동조 알고리즘

  • Cho, Joon-Ho (Department of control and instrumentation Engineering, Wonkwang Univ.) ;
  • Choi, Jung-Nae (Department of control and instrumentation Engineering, Wonkwang Univ.) ;
  • Hwang, Hyung-Soo (Department of control and instrumentation Engineering, Wonkwang Univ.)
  • 조준호 (원광대학교 제어계측공학과) ;
  • 최정내 (원광대학교 제어계측공학과) ;
  • 황형수 (원광대학교 제어계측공학과)
  • Published : 2001.07.18
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Abstract

Model reduction from high order systems to low order systems in frequency domain is considered four point (${\angle}$G(jw)=0, - ${\pi}/2$, ${\pi}$, and -3${\pi}$/2) instead of two point (${\angle}$G(jw) = - ${\pi}$/2,- ${\pi}$) of existing method in Nyquist curve. The Performances of reduced order model by proposed approach is similar to original model. In this paper, we proposed a new tuning algorithm for PID controller using model reduction in frequency domain. Simulations for some examples with varies dynamic characteristics are provided to show the effectiveness of the proposed tuning algorithm for PID controller using model reduction.

Keywords