降低自动电压控制系统无效调节次数方法的研究及应用

The Research and Application of the Methods to Reduce the Number of Invalid Adjustment in Automatic Voltage Control System

电网自动电压控制系统无效调节,一方面增加了变电站一次设备维护成本,另一方面造成设备因动作次数超过系统设定的闭锁值而闭锁,导致电压不合格时无设备可调节,降低电压合格率。通过对安顺电网自动电压控制系统的历史调节情况进行统计、分析,找出造成无效调节次数多的原因,提出多种降低自动电压控制系统无效调节次数的方法,并在实践中验证了方法的有效性。

The invalid adjustment of automatic voltage control system in power grid increases the maintenance costs of primary equipment in substations, furthermore, the primary equipment can’t be used due to the exceeding number of adjustment, which decreases the voltage qualified rate. Through the statistics and analysis of past adjustment of automatic voltage control system in Anshun power grid, the reasons that cause invalid adjustment are found out, and various methods of reducing the number of invalid adjustment are put forward, and the effectiveness of the method is verified in practice.