电力建设2017，Vol.38Issue(6)：52-58,7.DOI:10.3969/j.issn.1000-7229.2017.06.008
基于自抗扰控制的电动汽车快速充电纹波抑制方法
Methods to Suppress Voltage Ripple of Electric Vehicle Fast Charging Based on Active Disturbance Rejection Control Technique
摘要
Abstract
DC power supply mode is used for high power fast charging of electric vehicles,the voltage ripple generated by the former rectifier causes overvoltage and overcurrent in the battery,which can reduce the battery life and the operation stability of the rear level DC-DC chopper,and affect the quality of charging.Hence it is vitally important to restrict voltage ripple generated by rectifier below the level set.Taking nonlinear and strongly coupled three-phase bridge PWM rectifier as the research subject,this paper introduces the active disturbance rejection control technique into rectifier control.Under two-phase synchronous rotation d-q coordinate system,we establish the system model,and adopt voltage current double closed loop control.On the basis of the mathematical relation between DC-side output voltage and d-axis current,we use active disturbance rejection controller in voltage outer-loop control.The simulation results in PSCAD show that,compared with the traditional PI controllers,active disturbance rejection controller can track output instructions with high-speed and accuracy,reduce the voltage ripple,improve the dynamic characteristics of system and have good anti-load-disturbance performance.关键词
电动汽车/快速充电/电压纹波/自抗扰控制/三相桥式PWM整流器/PI控制Key words
electric vehicle/fast charging/voltage ripple/active disturbance rejection control/three-phase bridge PWM rectifier/PI control分类
信息技术与安全科学引用本文复制引用
尹忠东,汪沛..基于自抗扰控制的电动汽车快速充电纹波抑制方法[J].电力建设,2017,38(6):52-58,7.基金项目
国家重点研发计划项目(2016YFB0101900)Project supported by National Key Research and Development Program of China(2016YFB0101900) （2016YFB0101900）
