Abstract:In order to solve the impact of large-scale wind energy and photovoltaic grid-connected fluctuations on the safe and stable operation of the power grid. By analyzing the complementary characteristics of wind power generation, photovoltaic power generation, hydro power generation and pumped storage, wind power generation, photovoltaic power generation, hydro power generation and pumped storage power generation are regarded as a complete complementary power generation system. Considering various power constraints, two optimal scheduling models with minimum fluctuation of complementary system and minimum fluctuation of equivalent load of thermal power unit are proposed. Then the improved ADWOA algorithm is used to simulate the two models. The simulation results show that the two optimal scheduling models can track the optimization target well and reduce the influence of wind power generation and photovoltaic grid connection.