篇名 | Digital Stabilization of Fuzzy Systems with Time-Delay and Its Application to Backing up Control of a Truck-Trailer |
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卷期 | 9:1 |
作者 | Chang-Woo Park 、 Bong-Seok Kim 、 Jongbae Lee |
頁次 | 014-021 |
關鍵字 | Fuzzy control 、 Digital fuzzy system 、 Time-delay 、 Linear matrix inequality 、 EI 、 SCI 、 SCIE 、 Scopus |
出刊日期 | 200703 |
This paper presents the design methodology of digital fuzzy controller(DFC) for the systems with time-delay. We propose the fuzzy feedback controller whose output is delayed with unit sampling period and predicted. The analysis and the design problem considering time-delay become very easy because the proposed controller is syncronized with the sampling time. The stabilization problem of the digital fuzzy system with time-delay is solved by linear matrix inequality(LMI) theory. Convex optimization techniques are utilized to solve the stable feedback gains and a common Lyapunov function for designed fuzzy control system. Furthermore, we develop a control system for backing up a computer-simulated truck-trailer with the consideration of time-delay. By using the proposed method, we design a DFC which guarantees the stability of the control system in the presence of time-delay.