Optimization Operation of Wind-solar-thermal-storage Multi-energy Power System

In this paper, a pre-economic dispatching model is established for the large-scale energy storage, new energy cluster and thermal power system in multiple regions, aiming to achieve the self-balance of power and electricity within the region as far as possible, improve the level of new energy consumption, and reduce the power and power adjustment of thermal power on the basis of maintaining the ability of interregional cooperation. Firstly, according to the operation characteristics of various units, the operation model of various units is established; Secondly, according to multi-energy complementation, a pre-economic operation dispatching model of wind, solar, fire and storage is established to solve the planned power of various unit clusters. In the model, the self-balance within the region, new energy consumption, thermal power output and power adjustment costs and inter regional power exchange costs during system operation are comprehensively considered. Finally, the HRP-38 system is used as a typical example to analyze the typical results of scenarios with high renewable energy curtailment rates. The results show that this way can effectively play the regulating role of energy storage, smooth the power of new energy, and realize the optimal operation of multi-energy system of wind, solar, thermal and storage.