电力系统自动化2011,Vol.35Issue(16):87-93,7.
三相电压型脉宽调制整流器的自抗扰控制
Auto-disturbance Rejection Control for Three-phase Voltage-type PWM Rectifier
摘要
Abstract
Traditional voltage-outer-loop controllers have weak disturbance rejection ability,therefore,auto-disturbance rejection control(ADRC) for three-phase voltage-type pulse-width-modulation(PWM) rectifier is proposed.Based on the PWM rectifier model in the synchronous reference frame,a current-inner-loop controller is designed with the feedback linearization control method.The traditional ADRC is improved with the new nonlinear state error feedback function.Moreover,its convergence speed is faster than the speed of the linear state error feedback function,and the chattering of the traditional ADRC is eliminated.The voltage-outer-loop controller and its parameters tuning methods are given based on the improved ADRC.Experimental results show that,the proposed PWM rectifier control system has better steady and dynamic performances,and especially has a good rejection ability of disturbances in AC voltage and DC load.关键词
脉宽调制整流器/建模/自抗扰控制/非线性状态误差反馈/电压外环Key words
PWM rectifier/modeling/ADRC/nonlinear state error feedback/voltage-outer-loop分类
信息技术与安全科学引用本文复制引用
郭源博,周鑫,张晓华,陈宏钧..三相电压型脉宽调制整流器的自抗扰控制[J].电力系统自动化,2011,35(16):87-93,7.基金项目
国家自然科学基金资助项目 ()