混合多端直流逆变侧MMC阀组充电对LCC站的影响分析

Analysis of Influence of MMC Valve Group Charging on LCC Station at Hybrid Multi-terminal DC Inverter Side

近年来,特高压混合多端直流输电技术迅速发展。以±800 kV昆柳龙混合三端直流工程为例,结合工程调试实际情况,对特高压混合多端直流受端MMC充电后对送端LCC站的影响开展分析,提出工程现场运维建议,对特高压混合多端直流现场运维具有一定的参考意义。

In recent years,the UHV hybrid multi-terminal DC transmission technology has developed rapidly.In this paper,taking the±800 kV Kunliulong hybrid three-terminal DC project as an example,combined with the actual situation of project commissioning,the impact of UHV hybrid multi terminal DC receiver MMC charging on the sending end LCC station is analyzed.The suggestions for on-site operation and maintenance of the project are put forward,which have certain reference significance for on-site operation and maintenance of UHV hybrid multi terminal DC.