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Smith Predictor Based Robust Rapid Tracking Controller

Smith Predictor Based Robust Rapid Tracking Controller
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摘要 Precise model is hard to get in real application,a Smith predictor based robust rapid tracking controller for inaccurate model is proposed. Zero phase error feedforward controller which increases system closed-loop dynamics and disturbance observer based Smith feedback control which diminishes model hysteresis and improves stability are integrated. This method is applied in the noncircular machining with piezoelectric ceramic driver. The simulation and experiment show that the performance robustness and stability are well balanced in bandwidth about 200 Hz. The controller can decrease system hysteresis and get good tracking performance for predefined square-wave input signal. Precise model is hard to get in real application,a Smith predictor based robust rapid tracking controller for inaccurate model is proposed. Zero phase error feedforward controller which increases system closed-loop dynamics and disturbance observer based Smith feedback control which diminishes model hysteresis and improves stability are integrated. This method is applied in the noncircular machining with piezoelectric ceramic driver. The simulation and experiment show that the performance robustness and stability are well balanced in bandwidth about 200 Hz. The controller can decrease system hysteresis and get good tracking performance for predefined square-wave input signal.
作者 LIU Hongbin,HU Dejin (School of Mechanical Engineering,Shanghai Jiaotong University,Shanghai 200030,China)
出处 《武汉理工大学学报》 CAS CSCD 北大核心 2006年第S1期210-213,共4页 Journal of Wuhan University of Technology
关键词 SMITH PREDICTOR DISTURBANCE OBJECTION FEEDFORWARD compensation tracking performance smith predictor disturbance objection feedforward compensation tracking performance
分类号 TM571 [电气工程—电器]
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武汉理工大学学报
2006年 第S1期

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