基于特高压背景的江苏电网电压控制

Voltage Control in Jiangsu Power Grid in the Background of UHV AC and DC

在特高压交直流背景下,为全面分析特高压交直流电网的建设给江苏电网安全稳定运行带来的影响,重点选取江苏电网无功电压薄弱和区外交直流受电比例较高区域,针对严重故障方式,进行电网电压稳定研究计算,分析存在的无功电压问题。提出针对提高江苏电网本身动态无功储备能力的措施,以及利用直流本身特性来实现直流系统相互支援协调的措施,以期为江苏电网动态无功及电压控制提供参考。

In the background of UHV AC and DC, to comprehensively analyze the effects of the construction of the UHV AC and DC on the safe and reliable operation of Jiangsu Power Grid,the study is focused on the areas with weak reac-tive power voltage and a higher proportion of AC-DC electric power from external regions. The paper proposes measures for improving the reserve capacity of the dynamic reactive power in Jiangsu power grid and measures to realize coordination and mutual support by using the characteristics of the DC power system in the hope to provide useful reference for the dynamic reactive power and voltage control of Jiangsu power grid.