胡永银;李兴源;周洪宇;李宽;辜超;

• 1:四川大学电气信息学院
• 2:国电大渡河流域水电开发有限公司
• 3:西华大学电气信息学院

摘要(Abstract)：

基于电压源型换流器(voltage source converter,VSC)的高压直流输电工程在运行工况变化时,换流电抗器电感参数将随之变化,双闭环解耦控制器中含有电感参数的电流内环解耦将不准确或失效。为此,提出了一种dq同步旋转坐标系下无电感参数的解耦控制器。针对VSC-HVDC交流系统5、7、11、13等低次谐波含量较大的问题,提出了一种PI与准PR级联的控制器。算例仿真结果表明所提解耦控制策略可实现有功和无功的独立快速调节,能够有效抑制交流谐波,提高VSC-HVDC并网的电能质量。

关键词(KeyWords)： 电压源型换流器;谐波;电感参数;级联控制;电能质量

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金重点项目(51037003)~~

作者(Author): 胡永银;李兴源;周洪宇;李宽;辜超;

Email:

DOI:

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