Research on Short-Term Multi-Objective Collaborative Fine Dispatching of Hydro-Wind-Solar-Storge Clean Energy Base Based on the Topology Relationship Between Power Sources and Transmission Sections

Integrated development ofhydropower,wind,solar and energy storage is an important form of clean energy development in China.In the foreseeable future,multi-energy coordinated dispatching in integrated clean energy base will become one of the key issues to be solved for the efficient utilization of clean energy.This paper studies the short-term coordinated dispatching method of multi-energy complementarity,considering the new energy consumption of the clean energy base and the load demand of the power grid.It proposes the power transmission sections topological relationship construction method that can accurately describe the coupling relationship between multiple power sources and electric transmission lines in integrated bases.A short-term multi-objective coordinated fine dispatching model considering large-scale new energy consumption and transmission stability is established.The model is efficiently solved by using intelligent optimization algorithms and heuristic constraint correction strategies.The adaptability of the model is analyzed by using a hydro-wind-solar-storge clean energy base in a certain river basin in Southwest China as the research object.Simulation results show that the proposed modeling method can effectively solve the short-term multi-objective coordinated dispatching problem of clean energy bases.This method can quickly generate a set of non-inferior dispatching schemes,that reflect the competitive relationship between the total power generation and power output stability of clean energy bases,are widely and evenly distributed in space,and provide balanced dispatching schemes that take into account the demands at both the power source and grid.The dispatching schemes also finely consider the restrictions on the hourly power generation of power sources caused by the complex power collection methods within the base.The research results can provide technical support for the efficient and high-quality operation of clean energy bases.