汽轮机单阀-顺序阀切换造成电力系统振荡分析

针对因汽轮机单阀与顺序阀切换造成功率波动和电力系统振荡，分析汽轮机单阀一顺序阀切换的设计原理和可能造成功率波动的原因，指出根据现场实际测量的阀门流量特性进行汽轮机调速系统参数设置是解决负荷波动的最根本办法，在现场条件不具备的情况下，选择合适的操作方式、切换时间和蒸汽参数也能很好的控制负荷波动。

Analysis of Power System Oscillation by Turbine Single/Sequence Valve Switching

Aiming at an accident that single/sequential valve switching operation of steam turbine has caused power flutuation and power system oscillation, the reason of single/sequential valve switching operation and valve switching theory are introduced. By analyzing the causes of power flutuation, it is pointed out that the essential means to resolve the power flutuation is setting up the valve settings for steam turbine governing system according to the actual measured valve flow characteristics. Alternatively, an appropriate selection of operation mode, switching time and steam parameter can also keep the power flutuation under control.