The Transactions of the Korean Institute of Electrical Engineers P (전기학회논문지P)

The Korean Institute of Electrical Engineers (대한전기학회)
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Identification of Continuous System from Step Response using HS Optimization Algorithm

HS 최적화 알고리즘을 이용한 계단응답과 연속시스템 인식

  • Lee, Tae-bong (Dept. of Electrical Engineering Gachon University) ;
  • Shon, Jin-geun (Dept. of Electrical Engineering Gachon University)
  • Received : 2016.11.03
  • Accepted : 2016.11.22
  • Published : 2016.12.01
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Abstract

The first-order plus dead time(FOPDT) and second-order plus dead time(SOPDT), which describes a linear monotonic process quite well in most chemical and industrial processes and is often sufficient for PID and IMC controller tuning. This paper presents an application of heuristic harmony search(HS) optimization algorithm to the identification of linear continuous time-delay systems from step response. This recently developed HS algorithm is conceptualized using the musical process of searching for a perfect state of harmony. It uses a stochastic random search instead of a gradient search so that derivative information is unnecessary. The effectiveness of the proposed identification method has been demonstrated through a number of simulation examples.

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References

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