电压无功自动控制软件及其应用

首先分析电压无功控制（ＶＱＣ）原理,考虑了分接头的变化及电容器组的投切对无功和电压的综合影响,针对电压、无功的各种运行控制区域给出了相应调节策略。为适应不同电压等级、配置的变电站,提出了一种有应用价值的、在当 垢台计算机的监控系统中实现的电压无功自动控制方法。该方法以变电站的一条母线作为一个ＶＱＣ对象,根据监控系统的采集信号的分类,将ＶＱＣ运行闭锁条件分为“遥信信号闭锁”、“遥测值闭锁”、“保护信

SOFTWARE FOR AUTOMATIC CONTROL OF VOLTAGE AND REACTIVE POWERIN SUBSTATION AND ITS APPLICATIONS

The principle of substation's voltage and reactive power controller (VQC) is analyzed at first. The regulatingtactics are provided on different control zone of voltage and reactive power, according to integrated influence of voltage andreactive power with tap change and capacitor action. The realization of voltage and reactive power automatic control inunmanned substations with automation systems is illustrated in detail. In conclusion. this paper presents a feasible methodrealizing on a local background computer to optimize voltage and reactive power control for many kinds of substations withdifferent configurations, voltage levels and scales. This method regards one bus as one object of VQC. The locking conditionsof VQC operation may be divided into "remote signal locking'. "remote measured value locking". and "microprocessor--basedprotection signal locking" according to categoly of acquired signals by the supervisory control system. And the remoteSCADA system can monitor and control the VQC operation for unmanned substations.