Journal of the Korean Institute of Intelligent Systems (한국지능시스템학회논문지)

Korean Institute of Intelligent Systems (한국지능시스템학회)
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Design of Corrective Controllers for Model Matching of Switched Asynchronous Sequential Machines

스위칭 비동기 순차 머신을 위한 모델 정합 교정 제어기 설계

  • Yang, Jung-Min (School of Electronics Engineering, Kyungpook National University)
  • Received : 2014.08.01
  • Accepted : 2015.02.17
  • Published : 2015.04.25
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Abstract

This paper presents the solution to model matching of switched asynchronous sequential machines by corrective control. We propose a model of switched asynchronous sequential machines, in which the system can have different dynamics of asynchronous machines governed by a pre-determined sequence of switching. The control objective is to derive a corrective control law so that the stable state behavior of the closed-loop system can match that of a prescribed model. A new skeleton matrix is defined to represent the reachability of the switched asynchronous machine, and a novel control scheme is presented that interweaves the switching signal and the corrective control procedure. A design algorithm for the proposed controller is illustrated in a case study.

본 논문에서는 교정 제어에 의한 스위칭 비동기 순차 머신의 모델 정합 문제를 다룬다. 스위칭 비동기 순차 머신은 스위칭 신호에 따라서 여러 개의 비동기 순차 머신 특성을 번갈아 가면서 가지는 시스템이라고 정의한다. 이번 연구에서 스위칭 시스템이 가질 수 있는 스위칭 시퀀스(sequence)는 일정하게 고정되어 있다고 가정한다. 제어 목적은 폐루프 시스템의 안정 상태 동작을 주어진 기준 모델과 일치시키는 교정 제어기의 존재조건을 규명하고 제어기를 설계하는 일이다. 이를 위해서 스위칭 비동기 머신이 가지는 도달가능성을 표현하는 새로운 skeleton 행렬을 도입하고 모델 정합 교정 제어기의 존재조건을 기술한다. 또한 사례 연구를 통해 스위칭 신호를 생성하면서 동시에 교정 제어 입력을 변화시키는 새로운 교정 제어 알고리듬을 예시한다.

Keywords

References

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