摘要：For enhancing the regulation performance and the efficient operation of the pumped storage power plant, this paper proposed to combine a hydro-generator set with a full-size converter to achieve the decoupling control of the machine and the power grid. On the basis of the model test, the regulation characteristics of a certain pump-turbine had been discussed and the implication for the converter was highlighted. At the same time, modeling and control for the machine side converter were presented, the simulation results showed that the hydroelectric generator system based on a full-size converter could track the torque change properly through the control system and achieve variable-speed operation due to the decoupling from the fixed grid frequency. The analysis revealed that it is possible to operate the plant beneficially by adopting a full-size converter between the generator motor and the power grid to improve the dynamic performance of the system effectively.
其他摘要：For enhancing the regulation performance and the efficient operation of the pumped storage power plant, this paper proposed to combine a hydro-generator set with a full-size converter to achieve the decoupling control of the machine and the power grid. On the basis of the model test, the regulation characteristics of a certain pump-turbine had been discussed and the implication for the converter was highlighted. At the same time, modeling and control for the machine side converter were presented, the simulation results showed that the hydroelectric generator system based on a full-size converter could track the torque change properly through the control system and achieve variable-speed operation due to the decoupling from the fixed grid frequency. The analysis revealed that it is possible to operate the plant beneficially by adopting a full-size converter between the generator motor and the power grid to improve the dynamic performance of the system effectively.
