전기학회논문지 (The Transactions of The Korean Institute of Electrical Engineers)

  • 제66권6호
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  • Pages.927-934
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  • 2017
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  • 1975-8359(pISSN)
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  • 2287-4364(eISSN)
대한전기학회 (The Korean Institute of Electrical Engineers)
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2자유도를 가지는 지적 PID 제어기를 이용한 시스템의 성능향상

Performance/Robustness Improvement of i-PID with Two-Degree-of-Freedom Controller

  • Choe, Yeon-Wook (Dept. of Control and Measurement Engineering, Pukyong National University)
  • 투고 : 2017.04.15
  • 심사 : 2017.05.17
  • 발행 : 2017.06.01
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초록

This paper is concerned with applicability of two-degree-of-freedom controllers to the recently suggested i-PID controllers, in which unknown parts of the plant are taken into account without any modeling procedure. First, i-PID controller with two-degree-of-freedom is applied to a specific model, called Anisochronic model, to confirm the usefulness of this method. Second, using the original examples of i-PID controllers, it is confirmed that performance/robustness of system are to be improved due to two-degree-of-freedom, especially when the input changes suddenly. It is seen that as the desired robustness increases the optimal value of two-degree-of-freedom parameter ${\alpha}_A$ would be negative. It is checked and verified that if this value was limited to 1 or less as is generally known, performance would be degraded.

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참고문헌

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