普侨特高压直流输电系统无功控制策略研究

Research on Reactive Power Control Strategy in Pu-Qiao UHVDC Transmission System

基于普侨特高压直流输电系统的TDC控制逻辑软件,梳理了普侨直流站控中的无功控制的优先等级及其控制逻辑,在此基础上结合普侨直流实际运行工作归纳了不同优先级交流滤波器投退命令的执行逻辑和小组交流滤波器投退顺序控制;最后找出普侨直流小组交流滤波器的可用性判断、退出控制顺序、电压有效性三方面存在的问题并给出合理建议。

In this paper,based on the TDC control logic software of Pu-Qiao UHVDC transmission system,the priority level and control logic of reactor power control in Pu-Qiao DC station control are summarized.On this basis,combined with the actual operation of Pu-Qiao HVDC,the execution logic of switching on and off orders of AC filter with different priorities and group AC filter switching sequence control are summarized.Finally,the existing problems in the usability judgment,exit control sequence and voltage effectiveness of the AC filter of puqiao DC group of Pu-Qiao HVDC are found out,and the reasonable suggestions are given.