DOI QR코드

DOI QR Code

Corrective Control of Composite Asynchronous Sequential Machines in Parallel Connection

병렬 결합된 비동기 순차 머신을 위한 교정 제어

  • Yang, Jung-Min (School of Electronics Engineering, Kyungpook National University)
  • Received : 2014.04.15
  • Accepted : 2014.07.30
  • Published : 2014.08.25

Abstract

We address the problem of corrective control for two asynchronous sequential machines in parallel connection. Each asynchronous machine receives the same external input and shows independent state transition characteristics. We propose a novel control scheme in which only one corrective controller is employed so as to make the closed-loop system of each machine match the behavior of the corresponding reference model. Compared with the former method utilizing two corrective controllers, our scheme can reduce the controller size and computational load in controller design. We present the existence condition and design procedure for a state-feedback corrective controller under the assumption that the controlled machines are of input/state type. The design procedure for the proposed controller is described in an illustrative example.

이번 연구에서는 병렬 결합된 두 개의 비동기 순차 머신에 대한 교정 제어 문제를 다룬다. 각 비동기 머신은 동일한 외부입력을 받아 서로 독립적인 상태 천이 특성을 보인다. 본 논문에서는 한 개의 교정 제어기만을 이용하여 두 개의 비동기 머신의 폐루프 시스템 동작을 각각의 기준 모델의 동작과 일치시키도록 하는 제어 방법을 제안한다. 본 방법은 교정 제어기 두 개를 사용해야 하는 기존 방법에 비해 제어기 크기 및 계산량을 줄일 수 있다. 본 논문에서는 대상 비동기 머신이 입력/상태 유형이라고 설정하고 상태 피드백 교정 제어기가 존재할 조건과 설계 과정을 제시한다. 또 예제 시스템을 통하여 제안된 기법의 적용 과정을 기술한다.

Keywords

References

  1. T. E. Murphy, X. Geng, and J. Hammer, "On the control of asynchronous machines with races," IEEE Transactions on Automatic Control, vol. 48, no. 6, pp. 1073-1081, 2003. https://doi.org/10.1109/TAC.2003.812814
  2. J.-M. Yang, "Corrective control of asynchronous sequential machines for tolerating permanent faults", Journal of The Institute of Electronics Engineers of Korea, vol. 47, no. 5, pp. 9-17, 2010.
  3. J.-M. Yang and S. W. Kwak, "Fault diagnosis and fault-tolerant control of input/output asynchronous sequential machines," IET Control Theory and Applications, vol. 6, no. 11, pp. 1682-1689, 2012. https://doi.org/10.1049/iet-cta.2011.0339
  4. J. Peng and J. Hammer, "Bursts and output feedback control of non-deterministic asynchronous sequential machines," European Journal of Control, vol. 18, no. 3, pp. 286-300, 2012. https://doi.org/10.3166/ejc.18.286-300
  5. S.-J. Park, "Power-based supervisory control of discrete event systems: political economy analysis", Journal of The Institute of Electronics Engineers of Korea, vol. 50, no. 7 pp. 244-252, 2013. https://doi.org/10.5573/ieek.2013.50.7.244
  6. E. A. Lee and P. Varaiya, Structure and Interpretation of Signals and Systems, 2nd ed., LeeVaraiya.org, 2011.
  7. J.-M. Yang, "Model matching for composite asynchronous sequential machines in cascade connection," Journal of The Institute of Electronics Engineers of Korea, vol. 50, no. 5, pp. 253-261, 2013. https://doi.org/10.5573/ieek.2013.50.5.253
  8. K. Rudie and W. M. Wonham, "Think globally, act locally: decentralized supervisory control," IEEE Transactions on Automatic Control, vol. 37, no. 11, pp. 1692-1708, 1992. https://doi.org/10.1109/9.173140
  9. H. Li and Y. Wang, "Consistent stabilizability of switched boolean networks," Neural Networks, vol. 46, pp. 183-189, 2013. https://doi.org/10.1016/j.neunet.2013.05.012
  10. Z. Kohavi and N. K. Jha, Switching and Finite Automata Theory, 3rd ed., Cambridge University Press: Cambridge, UK, 2010.