摘要
为提高配电网静止无功补偿器(DSTATCOM)的无功补偿能力和低次谐波抑制能力,提出一种针对输出电流谐波抑制的补偿电流控制策略。该方法采用多同步旋转坐标变换,将DSTATCOM输出电流中的各指定次谐波转换成对应坐标系下的直流分量,并采用比例积分(PI)调节器对其进行分次闭环控制,将所得各次谐波电流抑制指令与无功指令叠加,实现了输出电流中指定次谐波的抑制,实验结果验证了此处提出方法的有效性。
In order to improve distribution-network static synchronous compensator（DSTATCOM）＇s capabilities of re- active power compensation and its robustness, a new current control method is proposed for output current harmonic suppression.To be specific, in synchronous rotating coordinate transformation corresponding to various orders of har- monics,the proportion integration （PI） regulator are used to compensate various orders of harmonics by closed-loop co- ntrol of output current, the harmonic current suppression instructions are added with reactive power compensations instruction,to effectively eliminate the affections of output current harmonics.The experimental results validate the effectiveness of the control strategy.
出处
《电力电子技术》
CSCD
北大核心
2015年第3期76-78,共3页
Power Electronics
基金
国家自然科学基金重点项目(51237003)
湖南省研究生科研创新项目(CX2013B162)~~
关键词
补偿器
同步旋转坐标变换
谐波抑制
compensator
synchronous rotating coordinate transformation
harmonic suppression
