基于模糊PI控制的APF在不平衡负载下的补偿特性研究  

Research on Compensatory Performance of APF Based on Fuzzy PI Control with Unbalanced Load

作　　者：徐在德[1] 范瑞祥[1] 邓才波[1] 潘本仁[1] 

机构地区：[1]国网江西省电力科学研究院电网技术中心,江西南昌330096

出　　处：《电器与能效管理技术》2015年第6期49-53,共5页Electrical & Energy Management Technology

摘　　要：分析了采用直接控制电源电流的有源电力滤波器(APF),给出了此种控制方式下的APF的基本结构以及控制部分的原理,尤其针对三相四线系统,在三相负载不平衡的情况下此种控制方法的可行性。直流侧电容电压采用PI和自适应模糊PI两种控制方式,在Matlab/Simulink环境下进行了对比。仿真表明,采用自适应模糊PI控制的APF响应速度加快,调节精度提高,稳态性能变好,而且没有超调和振荡,具有较强的鲁棒性。This paper analysed the active power filter（APF） directly controlling the source current. The basic structure and the principle of controlling part with this kind of control method was introduced, especially the feasibility of this method when the three-phase load is unbalanced about the three-phase four-wire system . The PI method and the adaptive fuzzy PI control method of DC side capacitor vohage were compared in the Matlab/ Simulink environment. The simulation indicates that the response speed of APF system with the adaptive fuzzy control is fast, the modulation precision is raised ,the steady-state performance is improved, the robustness is strong and there is no overshoot and concussion.

关 键 词：有源电力滤波器 不平衡负载 自适应模糊PI控制 谐波:三相四线系统 

分 类 号：TM714.3[电气工程—电力系统及自动化]