Dispatching Strategy of Joint Wind, Photovoltaic, Thermal and Energy Storage Considering Utilization Ratio of New Energy

Abstract

Large-scale wind power and photovoltaic combined with thermal power, energy storage and other equipment need to be send out, resulting in the increase in the cost of joint dispatching system and the obstruction of new energy consumption. In order to realize the economic efficiency of the combined dispatching of wind power and photovoltaic, thermal power and energy storage, this paper designs the operation framework of the combined dispatching of joint wind, photovoltaic, thermal and energy storage, aiming at the lowest comprehensive operation cost and the largest amount of new energy consumption. The paper establishes the dispatching model and selects the DC transmission channel from Xinjiang to Shandong for multi scenario analysis. By improving the flexibility of thermal power transformation technology, the comprehensive operation cost of the outgoing system was significantly reduced by 6.93%, and the energy abandonment rate was reduced by 9.30%. Under the dynamic adjustment of wind power and photovoltaic installed capacity, the utilization rate of new energy has a weak positive correlation with the increase of comprehensive operation cost.