陈启超;李晖;吴文传;张怡;王菲;蒋维勇;盖振宇;

• 1:国网经济技术研究院有限公司
• 2:电力系统及发电设备控制和仿真国家重点实验室(清华大学电机系)
• 3:国家电力调度控制中心

摘要(Abstract)：

渝鄂背靠背柔性直流工程投运后,西南电网与华中电网异步互联,系统面临频率稳定问题以及孤岛运行风险,可通过合理的配置并设计柔直频率限值控制器(frequency limit controller,FLC)来改善系统频率稳定性并保证故障后联网转孤岛能够稳定运行。FLC属于柔性直流输电系统的附加控制,能够根据交流频率变化迅速调节传输功率。针对渝鄂柔直工程两侧交流系统特性提出了FLC的配置与设计原则,选取了适合一次调频的FLC控制方案并进行了相关的参数设计,采用时域仿真法分析了FLC参数对联网转孤岛过程系统暂态特性的影响,并对参数进行了相应的优化。仿真结果表明,所设计的FLC能够有效适应联网运行、联网转孤岛以及孤岛运行等不同运行模式,提高系统的频率稳定水平。

关键词(KeyWords)： 背靠背;柔性直流;频率限值控制器;孤岛

Abstract:

Keywords:

基金项目(Foundation): 国家电网公司科技项目(XT71-18-036)~~

作者(Author): 陈启超;李晖;吴文传;张怡;王菲;蒋维勇;盖振宇;

Email:

DOI: 10.13335/j.1000-3673.pst.2019.0601

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