水电站AGC中的惩罚函数及虚拟机组技术

The Application of Penalty Function and Virtual Unit to the AGC of Hydropower Station

针对影响水轮机使用寿命与运行安全的气蚀和振动问题 ,从经济角度出发 ,用惩罚函数方法 ,有效地避开了机组的气蚀和振动区 .在水电站自动发电控制AGC中 ,为避免负荷调整时频繁通过气蚀和振动区 ,以及机组的频繁开停 。

Aiming at the problems of the cavitation erosion and the vibration effecting the service life and safety for a turbine, form the economical point of view, the penalty functions have been applied to away from regions of the cavitation erosion and the vibration. In the AGC of a hydropower station, in order to avoid passing the above mentioned regions and not start stop frequently, the safety regions of a unit have been used to calculate for optimization in the station with the form of virtual unit.