电网技术2016，Vol.40Issue(1)：207-213,7.DOI:10.13335/j.1000-3673.pst.2016.01.028
基于自抗扰控制的牵引网网压低频振荡抑制方法
A Novel Approach Based on ADRC to Traction Network Voltage Low Frequency Oscillation Suppression Research
摘要
Abstract
Low frequency voltage oscillation in high-speed railway traction network may lead to many traction blockade accidents.Aiming at the phenomenon,a state space model of line-side pulse rectifier in Electric Motor Unit (EMU) is constructed.Then a first-order nonlinear Active Disturbance Rejection Control (ADRC) is designed to replace traditional Transient Current Control Strategy (TCCS) considering linear Proportional Integral (PI) controller.Transition process is set up and Extended State Observer (ESO) is calculated.External disturbance and internal system disturbance are regarded as a total disturbance.In addition,corresponding dynamic nonlinear compensation is given.Finally,double-rectifier model with control components is constructed in Matlab/Simulink.Through comparing and analyzing two control strategies,it is concluded that ADRC controller has excellent robustness.In order to further verify ADRC control effect,rectifier simulation models adopting ADRC controller are applied to traction network system chain model.ADRC controller has not only good inhibition effect on low frequency overvoltage oscillation of traction network,but also strong robustness and insensitivity to parameters.关键词
高速铁路/牵引网-动车组/牵引网网压低频振荡/自抗扰控制器/脉冲整流器Key words
high-speed railway/EMUs-traction network/traction network low frequency voltage oscillation/ADRC/pulse rectifier分类
信息技术与安全科学引用本文复制引用
姚书龙,刘志刚,张桂南,向川..基于自抗扰控制的牵引网网压低频振荡抑制方法[J].电网技术,2016,40(1):207-213,7.基金项目
国家自然科学基金高铁联合基金重点项目(U1434203 （）
U1134205),国家自然科学基金(51377136).Project Supported by the National Natural Science Foundation of China (U1434203 （51377136）
U1134205 （）
51377136). （）
