平班水电站机组有功功率波动原因分析及处理

Cause Analysis and Treatment of Active Power Fluctuations of Hydraulic Turbine Set in Pingban Hydropower Station

为解决水电站水轮机组有功功率大范围的波动直接影响机组并网运行的稳定性,避免增加其他运行机组发生低频振荡的风险,文章结合平班水电站有功功率波动的两种实际情况,详细介绍了平班水电站有功功率波动的变化趋势与规律,研究分析并优化监控系统与调速器之间的配合逻辑,提出处理方案,避免类似事件的发生。

To reduce the influence of wide fluctuations of active power of hydraulic turbine set on stability of on-grid operation of units and lower the risk of low frequency oscillation on other running units, the paper introduces in detail the change trends and rules of the active power fluctuations according to two practical cases in Pingban hydropower station, analyzes and optimizes the logic between monitoring system and governor, and gives a solution for avoiding similar incidents.