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Stability Analysis of a Networked Control System with Multiple Packet Transmission  

Jung, Joon-Hong (Research and Development Department, Korea Electric Power Data Network Co., Ltd.)
Park, Ki-Heon (School of Information and Communication Engineering, Sungkyunkwan University)
Lee, Jae-Ho (School of Information and Communication Engineering, Sungkyunkwan University)
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Abstract
The main objective of this paper is to propose a new stability analysis method for a networked control system with multiple packet transmission. The new scheduling method that can guarantee the maximum time delay and discrete switch state equation model which represent a network data loss is proposed. The equivalent model of a MIMO(multi-input multi-output) networked control system is derived from a state space model of linear time invariant interconnected systems in the form of asynchronous dynamical system. Using this model, this paper presents new stability theorems that can determine stability of the networked control system with regard to time delay, data loss, and the number of transmission packets. Simulation results verify the effectiveness of proposed stability analysis method.
Keywords
networked control system; multiple packet transmission; switch model; stability analysis;
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