基于自抗扰控制技术的有源电力滤波器直流侧电压优化控制  

Optimal Control for DC Side Voltage of Active Power Filter Based on Auto-Disturbance Rejection Control

作　　者：丁祖军[1] 刘保连[1] 张宇林[1] 

机构地区：[1]淮阴工学院电子与电气工程学院,江苏省淮安市223003

出　　处：《电网技术》2013年第7期2030-2034,共5页Power System Technology

基　　金：江苏省高校自然科学基础研究项目(11KJB470002)的资助

摘　　要：直流侧电压的稳定控制是保证有源电力滤波器(activepower filter,APF)正常工作的关键环节之一。对APF直流侧电压进行建模,在dq坐标系中分析了直流侧电压与d轴电流的数学关系,进而提出了APF直流侧电压自抗扰控制器的整体设计方法,给出了自抗扰控制器中的跟踪微分单元、扩张状态观测器和误差反馈单元的设计方法,并采用线性方法对该控制器进行优化,提高了响应速度与控制精度。仿真与试验结果验证了该设计方法的可行性。The stable control of DC side voltage is one of key links to ensure normal operation of active power filter（APF）.The model of DC side voltage of APF is established and the mathematical relation between DC side voltage and d-axis current is analyzed in dq coordinate system,and then a total design method for auto disturbances rejection controller（ADRC） of DC side voltage of APF is proposed.The design method of tracking differentiator（TD）,extended state observer（ECO） and error feedback unit of ADRC are given,and linear optimization is applied to the ADRC to improve its response speed and control accuracy.The feasibility of the proposed design method is validated by simulation and experimental results.

关 键 词：有源滤波器 直流侧电压 自抗扰控制 线性优化控制 

分 类 号：TM721[电气工程—电力系统及自动化]