基于电流型变流器的低谐波正交可控电抗器

A Novel Harmonic-free Orthogonal Controllable Reactor Based on Current-source Converters

正交可控电抗器是无功补偿的重要装置,但其本身由于特殊磁路结构会产生大量谐波。为改善其性能,本文提出了一种基于电流型变流器的低谐波正交可控电抗器,其基本结构是在传统的正交可控电抗器的交流侧增加谐波补偿绕组。电流型变流器检测出可控电抗器输入电流中的谐波分量,并产生与此谐波电流大小相等方向相反的补偿电流,通过补偿绕组耦合到可控电抗器的输入电流中,从而使输入电流接近正弦。本文讨论了这种低谐波正交可控电抗器的结构,工作原理及控制原理,并用Saber软件进行了仿真分析。

This paper present a novel harmonic free orthogonal Controllable reactor （OCR） tbr single phase based on current source converter. The novel controllable reactor employs harmonic elimination windings which connect to the converter to compensate the harmonic component of the input current. In this paper, the configuration of the novel controllable reactor, the working principle and the control principle are discussed. The feasibility of the theory is verified by Saber simulation results.