郭贤珊;周扬;杨美娟;姚为正;

• 1:国家电网有限公司
• 2:西安许继电力电子技术有限公司
• 3:许继集团有限公司

摘要(Abstract)：

高压大容量柔性直流系统采用高低阀组串联方案时,单阀组在线投入/退出控制是一项重要环节。首先基于系统主接线方式及直流场开关配置方案,以直流电流连续不中断为要求,研究了阀组在线投退过程中直流场开关的顺控操作。其次分析了开关操作对阀组直流电压、直流电流控制的要求,并提出了MMC定直流电流均压控制策略。之后研究了系统内各站之间的配合关系,基于各站同步投退的方案设计了直流电压调节过程中2种功率调节方案。最后,综合得出了单阀组投退时系统的整体控制方案并进行了仿真,结果验证了所设计的阀组投退方案的有效性和可行性。

关键词(KeyWords)： 柔性直流系统;高低阀组串联方案;在线投入/退出;控制方案

Abstract:

Keywords:

基金项目(Foundation): 国家电网公司总部科研项目(张北柔直电网试验示范工程)~~

作者(Author): 郭贤珊;周扬;杨美娟;姚为正;

Email:

DOI: 10.13335/j.1000-3673.pst.2018.2346

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