云广直流带小湾和金安桥两个电厂的孤岛运行调试与分析

云南至广东±800kV直流输电工程送端楚雄换流站侧采用孤岛运行方式，可以较大幅度提高云南至广东现有交直流输电通道的送电能力。对该工程带小湾和金安桥两个电厂孤岛运行调试的分阶段计划和具体的试验项目进行了介绍，并基于实际完成的现场调试，对试验结果和孤岛系统的实际运行特性进行了分析。现场试验和分析结果验证了云广直流送端带两个电厂孤岛运行方式的可行性，从而为实际运行中采用孤岛运行方式打下了基础。

The On-site Commissioning and Analysis of Islanding Operation of Yunnan- Guangdong UHVDC Transmission System Supplied by Xiaowan and Jinanqiao Power Plants

Islanding operation at the sending terminal of Yunnan - Guangdong 800 kV UHVDC power transmission project can significantly increase the total transmission capability from Yunnan to Guangdong through the existing AC and DC links. The paper introduces the stages of testing plan and the arranged testing items for islanding operation on-site commissioning of the UHVDC project supplied by Xiaowan and Jinanqiao power plants. Based on the completed commissioning tests, the testing results and the actual system features of the islanding operation have been analyzed. Both the on-side commissioning and analysis results verify the feasibility of the islanding system, and thus provide a technical basis for the real system operation using the islanding modes.