【摘要】 本文根据非线性条件下具有水力内联的水电机组特点,建立了非线性动态模型并设计了自适应模糊控制器。模型可较好地表达具有水力联系机组的可建模与不易建模特性;自适应模糊控制器专门用于几台机组共用一条压力引水管道水电厂的现地控制系统,在机组正常运行时可以保证其稳定,在任一台机组导叶开度急剧变化时能对另一台机组的状态进行补偿;并行运算方式可以使控制器取代数台独立分布于每台机组的常规PID水轮机调速器,从而为现代化水电厂控制提供一种新的解决方案。根据实际电厂的数据进行仿真,结果验证了自适应模糊控制器的有效性。更多还原

【Abstract】 In the paper,nonlinear dynamic model is established,and self-adaptive fuzzy controller based on hydropower unit characteristics with hydraulic connection under nonlinear condition is designed. Modeling and difficult modeling features of hydraulic connection unit can be better expressed by the model. Self-adaptive fuzzy controller is specially used for site control system of hydraopower plant that several units share one pressure water diversion pipeline. Its stability can be ensured during normal operation of unit. State of another unit can be compensated when any one unit guide vane openness is abruptly changed. Parallel operation mode makes controller to replace several conventional PID turbine speed governors which are independently distributed in each unit,thereby providing a new solution for modern hydropower plant control. Stimulation can be conducted according to actual data of power plant. The effectiveness of self-adaptive fuzzy controller is verified in the result.更多还原