基于不定频滞环APF的电流控制策略研究  

Research on Current Control Strategy of APF Based on Indeterminate Frequency Hysteresis

作　　者：綦慧[1] 赵聪 Hui Qi;Cong Zhao(Beijing University of Technology,Beijing 100124,China)

机构地区：[1]北京工业大学电子信息与控制工程学院,北京100124

出　　处：《电气工程与自动化（中英文版）》2016年第1期8-14,共7页Electrical Engineering and Automation

摘　　要：在电网中谐波现象普遍存在.有源电力滤波器（APF）是当前治理电网谐波污染的主要手段.为提高有源电力滤波器的电流跟踪性能,本文将滞环控制和空间矢量调制相结合,提出一种基于不定频滞环的空间电压矢量（SVPWM）电流控制策略,以确定最佳电压空间矢量,获得电流的高品质控制.文中利用Simulink软件对上述策略进行建模仿真.仿真结果表明,与基于指令电压矢量的空间电压矢量控制策略相比,该策略在提高控制效果、减少谐波污染上具有一定优势.Harmonics in the grid is widespread. Active power filter （APF） is currently the primary means to control the harmonic pollution in the grid. In order to improve the current tracking performance of active power filter, a current control strategy of space vector pulse width modulation （SVPWM） based on indeterminate frequency hysteresis has been proposed in this paper with the combination of hysteresis control and the space-vector modulation. In this way, the optimal voltage space vector could be determined and the current high performance control was obtained as well. In this study, the Simulink software was used to simulate the strategy referred above. The results of simulation showed that as compared with the control strategy of space voltage vector based on the command voltage vector, the strategy proposed in this paper has some advantages in improving the control effect and reducing the harmonic pollution.

关 键 词：不定频滞环 有源电力滤波器 空间电压矢量 电流跟踪 

分 类 号：TM464[电气工程—电器]