Approximated Modeling and Sliding Mode Control for Systems with Multiple Time Delays
This paper shows a new approximated model-based sliding mode controller (SMC) design for continuous-time systems with multiple time delays in states, inputs and outputs. The synthesis design procedure is composed of two steps. At the first step, based on the unit-step response data of the afore-mentioned system, an approximated continuous-time state-space model and its transfer function are determined using the balanced realization and model reduction methods. At the second step, a SMC is designed using the internal model principle to achieve the desired reference model tracking performance. A novel smooth function which substitutes for the exact sign function is presented to reduce the chattering effects. Illustrative example on a general form of distillation column model is given to demonstrate the effectiveness of the proposed method.
Sliding surface Balanced model reduction Non-minimum-phase Step response
L. B. Xie Z. H. Wu L. S. Shieh L. Peng
Key Laboratory of Advanced Process Control for Light Industry (Ministry of Education) Jiangnan Unive Department of Electrical and Computer Engineering, University of Houston, Houston, TX 77204-4005, US
国际会议
The 31st Chinese Control Conference(第三十一届中国控制会议)
合肥
英文
3149-3154
2012-07-01（万方平台首次上网日期，不代表论文的发表时间）