电压无功自动控制软件在500kV变电站的应用

500kV双龙变电站的电压无功自动控制功能集成在监控系统中，充分利用监控系统的资源．包括支撑软件、开发工具、顺控程序和所采集的遥信和遥测量等，设置25个电压控制区域．通过软件实现对该站主变分接头的自动调节和电容器／低抗的自动投切。着重介绍了该电压无功控制软件的调节策略和原理，以及功能设计和运行情况。

Application of AVQC software in 500 kV substation

The AVQC package of Shuanglong 500 kV substation is integrated into its SCADA system,which fully utilizes the resources of SCADA,including supporting modules,development modules,sequential control modules,remotely acquired signals and measurements,etc. Twenty-five voltage con-trol areas are set in the software package. The automatic tap changing of main transformer and the automatic switching of the capacitors and reactors are carried out by software. Its principle and control strategy is emphasized,as well as the function design and operation specification.