基于元件冗余的有源电力滤波器容错控制方法研究  

Research on Fault-tolerant Control Method of Active Power Filter Based on Component Redundancy

作　　者：胡常胜 李杨 单强 刘辉 HU Changsheng;LI Yang;SHAN Qiang;LIU Hui(State Grid Xinjiang Electric Power Co.,Ltd.,Urumqi 830000,Xinjiang,China)

机构地区：[1]国网新疆电力有限公司,新疆乌鲁木齐830000

出　　处：《电气传动》2022年第10期37-42,共6页Electric Drive

基　　金：国家电网公司科技项目(2018ZX-09)。

摘　　要：有源电力滤波器容错控制存在元件冗余,从而导致容错控制误差增加、执行效率以及容错率下降,针对这些问题,提出了一种基于元件冗余的有源电力滤波器容错控制方法。在元件冗余条件下,将三相六开关有源电力滤波器(APF)重新构建为三相四开关APF,同时分析APF拓扑结构,组建形成去冗余数据模型。在结合李雅普诺夫稳定性定理设计电流环节控制策略和控制器的基础上,通过比例积分使电压稳定在期望数值范围内,最终实现有源电力滤波器的容错控制,仿真实验结果也表明所提方法能够切实提升执行效率及容错率,有效降低容错控制误差。The fault-tolerant control of active power filter(APF)has component redundancy,which leads to the increase of fault-tolerant control error,the decrease of execution efficiency and fault-tolerant rate.Aiming at these problems,a fault-tolerant control method ofAPF based on component redundancy was proposed.Under the condition of component redundancy,the three-phase six switch APF was reconstructed into three-phase four switch APF.At the same time,the topology ofAPF was analyzed and the data model of eliminating redundancy was formed.Based on the Lyapunov stability theorem,the current link control strategy and controller were designed,and the voltage was stabilized in the expected value range by proportional integral,and finally the fault-tolerant control of active power filter was realized.The simulation results also show that the proposed method can effectively improve the execution efficiency and fault-tolerant rate,and effectively reduce the fault-tolerant control error.

关 键 词：元件冗余 有源电力滤波器 容错控制 数学模型 

分 类 号：TN713[电子电信—电路与系统]