The adaptive fuzzy controller of hydroelectric units with hydraulic interconnection

According to the character of the hydroelectric units with hydraulic interconnection in nonlinear condition, a nonlinear dynamic model is presented and an adaptive fuzzy controller is also designed based on this model. This new model is useful in representing the modeling and non-modeling characteristic of the hydroelectric units with hydraulic interconnection. The adaptive fuzzy controller used in unit´s normal working state can guarantee the stability of units. When any unit´s guide vane opening is changing sharp, the controller can compensate for the state of the other one. The parallel calculation can make the controller substitute normal PID hydraulic turbine governor which is distributed in each unit independently, and it provides a new solution for the control design of modern water power plant. Simulation results show this method´s practicability and effectiveness.