基于单周控制的四桥臂APF矢量模式研究  

Four-leg APF Based on Vector Mode One-cycle Control

作　　者：谭风雷 朱超 吴兴泉 TAN Fenglei;ZHU Chao;WU Xingquan(State Grid Jiangsu Electric Power Co., Ltd. Maintenance Branch, Nanjing 211102, China)

机构地区：[1]国网江苏省电力有限公司检修分公司,江苏南京211106

出　　处：《电力工程技术》2018年第1期141-146,共6页Electric Power Engineering Technology

摘　　要：本文提出了两种基于单周控制的三电平四桥臂电力有源滤波器矢量模式。研究三电平四桥臂变换器的拓扑结构,分析其等效数学模型,考虑到直流侧电容电压可以自动实现均衡,借助绝对开关状态表提出了两种三电平四桥臂单周控制矢量模式,并详细推导控制目标方程,最后仿真结果表明两种矢量模式能够有效补偿谐波,显著减少零线电流,降低APF的开关损耗,从而验证了所提理论的有效性和可行性。Two new vector modes of one-cycle control three-level APF are presented in this paper. The topology of three-level four-leg inverter was studied, and the mathematical model was analyzed. Considering that the DC capacitor voltage can balance automatically, with the help of absolute switching state table two new vector modes of one-cycle control three-level APF were proposed, and the control objective equations were derived. The simulation shows that these modes are able to compensate the harmonic current effectively and reduce switching losses and neutral current, which verifies their validity and feasibility.

关 键 词：单周控制 三电平 四桥臂 电力有源滤波器 矢量模式 

分 类 号：TM761[电气工程—电力系统及自动化]