刘凯;张英敏;李兴源;蒋容;曾琦;

• 1:四川大学电气信息学院

摘要(Abstract)：

目前柔性直流输电系统中低频振荡阻尼控制主要是利用柔性直流的有功功率进行调制。为不影响柔性直流输送的直流功率并充分利用换流站的调制能力,基于振荡能量下降原理提出一种同时利用柔性直流整流侧和逆变侧无功抑制低频振荡的阻尼控制器设计方法。首先推导出无功控制规律,依据此规律采用模糊逻辑方法设计出双侧模糊无功阻尼控制器。在控制器设计过程中,无需对系统进行辨识,因此控制器不依赖于系统特定运行状态对应的精确模型,具有较强的鲁棒性。最后,设计传统极点配置阻尼控制器进行对比。仿真结果表明,基于文中方法设计的双侧模糊无功阻尼控制器能有效抑制系统低频振荡,鲁棒性好,而且无需专门的参数协调方法也能达到两侧控制器协调输出的效果,严重故障时能充分利用2个换流站的调制能力。

关键词(KeyWords)： 振荡暂态能量;无功调制;低频振荡;柔性直流附加控制;模糊控制

Abstract:

Keywords:

基金项目(Foundation): 国家电网公司科技项目(SGQHJY00GHJS1400044)~~

作者(Author): 刘凯;张英敏;李兴源;蒋容;曾琦;

Email:

DOI: 10.13335/j.1000-3673.pst.2016.04.008

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