大连理工大学学报2019，Vol.59Issue(1)：88-96,9.DOI:10.7511/dllgxb201901012
非最小相位时滞系统新型Smith自抗扰控制及其鲁棒性
A new type of active disturbance rejection control with Smith and its robustness for non-minimum phase time-delay systems
摘要
Abstract
Non-minimum phase plant is the typical problem in industrial control, especially when unstable poles or zeros and time-delay exist simultaneously, and it is more difficult to achieve stable control.Based on the first-order time-delay plant with an unstable pole, a new type of active disturbance rejection control (ADRC) -Smith controller is designed by introducing two proportional feedbacks along with the mechanism analysis, and the maximum permissible boundary of system model error is obtained.When there is parameter perturbation, the characteristics of systems in frequency and time domain are analyzed using simulations, and the relationship between the maximum error boundary and frequency for different plants is drawn.Finally, Monte Carlo test is used to verify that the disturbance rejection capability for the new type of ADRC-Smith controller is better than modified Smith-PID controller.关键词
unstable pole/time-delay system/modified Smith predictor/active disturbance rejection control (ADRC)/robust stabilityKey words
unstable pole/time-delay system/modified Smith predictor/active disturbance rejection control (ADRC)/robust stability分类
信息技术与安全科学引用本文复制引用
陈增强,王永帅,孙明玮,孙青林..非最小相位时滞系统新型Smith自抗扰控制及其鲁棒性[J].大连理工大学学报,2019,59(1):88-96,9.基金项目
国家自然科学基金资助项目(61573199,61573197) （61573199,61573197）
