载波相移SPWM级联H型变流器及其在有源电力滤波器中的应用

被引:73
作者
李建林 [1 ]
赵栋利 [1 ]
赵斌 [1 ]
张仲超 [2 ]
李亚西 [1 ]
机构
[1] 中国科学院电工研究所
[2] 浙江大学
关键词
载波相移正弦脉宽调制技术(CPS-SPWM); 级联H桥型变流器; 等效开关频率; 有源电力滤波器;
D O I
10.13334/j.0258-8013.pcsee.2006.10.020
中图分类号
TM461 [整流器];
学科分类号
摘要
提出了基于CPS-SPWM技术的级联H桥型多电平变流器,它是CPS-SPWM技术与级联H型变流器拓扑结构的结合。这种变流器能在较低的器件开关频率下实现较高等效开关频率的效果,具有结构简单、传输频带宽、动态响应好等优点。文中将这种变流器用在有源电力滤波器这样大功率场合,在并联有源电力滤波器系统中,由于直流侧不需要提供有功功率,级联型多电平变流器的优势可以得到充分的发挥;而载波相移PWM技术良好的谐波传输特性也可以得到良好的利用。仿真和实验结果表明基于CPS-SPWM技术级联 H桥型多电平变流器的SAPF系统能够在较低的器件开关频率下实现较好补偿效果,具有良好的工业应用前景。
引用
收藏
页码:109 / 113
页数:5
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