基于电压空间矢量的有源电力滤波器双滞环电流控制方法  

A Novel of Double Hysteresis Current Control Method for Active Power Filter Based on Voltage Space Vector

作　　者：赵雷[1] 韩建定[1] 李锋[1] 崔晨[1] 

机构地区：[1]空军工程大学工程学院,西安710038

出　　处：《电测与仪表》2009年第9期24-28,共5页Electrical Measurement & Instrumentation

摘　　要：为提高有源电力滤波器的补偿精度,提出一种基于电压空间矢量的有源电力滤波器双滞环电流控制方法。该方法利用电流误差矢量与参考电压矢量的空间分布给出最佳电压矢量输出,控制电流误差在滞环带内;双滞环的引入,保证了系统暂态过程中的响应速度,同时也具有较好的稳态跟踪能力,可有效限制电流误差。同时还提出了一种扇区判定和参考电压求解的优化算法,与其他电流控制方法相比,该控制方法提高了电压利用率,也显著降低了开关频率,在Pspice软件环境下的仿真结果证明了其良好的动静态性能。In order to improve the current tracking performance of active power filter, a novel of double hysteresis current control method based on voltage space vector is proposed. This method gives the best switching of voltage vector using the space distribution of current error vector and refererce voltage vector, and then controls the current below the hysteresis width. The double hysteresis ensures a fast current response, and has an ascendant steady-state performance, which can limit the current error efficiendy. And a novel of optimal arithmetic of Region determination and reference voltage is proposed. Compared with other current control method, this method improves the usage of voltage, and limits the switching frequency. Simulation results based on Psi：ice software are presented to verify the anticipated steady-state and dynamic performance of this control strategy.

关 键 词：有源电力滤波器 谐波补偿 直接电流控制 电压空间矢量 双滞环电流矢量控制 

分 类 号：TM713[电气工程—电力系统及自动化]