Journal of Advanced Navigation Technology (한국항행학회논문지)

The Korean Navigation Institute (한국항행학회)
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New Stability Conditions for Networked Control System with Time-Varying Delay Time

시변 지연시간에 대한 네트워크 제어 시스템의 새로운 안정조건

  • Received : 2013.10.07
  • Accepted : 2013.12.30
  • Published : 2013.12.30
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Abstract

In this paper, the new stability conditions for discrete systems with time-varying delay time are proposed by Lyapuniv theory for the stability analysis of NCS(Networked Control System) having data communication. The proposed stability conditions are very simple and easily calculated compared to the previous conditions having complex numerical calculations. The proposed results can include several previous works on the same issue. From the simulation results, the proposed conditions show the better performance and less conservative on checking stability compared with previous results.

본 논문에서는 데이터 통신을 이용하는 네트워크 제어 시스템에서 데이터 전송 지연에 의한 시스템 안정성 조건을 리아프노프 이론을 이용하여 새로이 유도하였다. 제안된 안정조건은 기존의 복잡한 계산에 의한 결과에 비하여 매우 간단한 형태이며 쉽게 계산될 수 있다. 또한, 기존에 연구된 결과들을 포함하여 적용될 수 있는 조건임을 보였다. 시뮬레이션을 통하여 기존의 결과에 비해 성능 면에서 우수하고 안정성 판단에 있어 덜 제한적임을 확인하였다.

Keywords

References

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  1. 구간 시변 지연시간을 갖는 양의 시변 이산 구간 시스템의 새로운 안정 조건 vol.18, pp.5, 2013, https://doi.org/10.12673/jant.2014.18.5.501