Research On Integrated Energy System Scheduling Based On Improved Niche PSO Algorithm

Countries around the world are facing the problems of energy depletion and environmental degradation.At the same time,due to China's abundant wind energy resources and increasing installed wind power capacity,but the phenomenon of wind abandonment is serious,the reform of energy structure and the development of efficient and clean energy systems have become a solution A powerful move on this issue.The Integrated Energy System(IES)has realized the cascade use of energy,which is widely recognized as an effective way to solve the above problems.In the context of research on integrated energy systems,the emerging electricity-to-gas(P2G)technology is believed to have the effect of improving environmental quality and promoting the consumption of renewable energy.Based on this background,this paper mainly studies the dispatching strategy of the integrated energy system,so that the system can absorb more renewable energy on the premise of ensuring economic efficiency.The research work is as follows:(1)Propose and build a comprehensive energy system model that meets the user's load demand,research and analyze the energy supply structure of the comprehensive energy system,including the operating principles of the system's energy input,energy conversion,and energy storage links,and establish each link The mathematical model of the equipment unit establishes a theoretical basis for subsequent research.(2)Establish a comprehensive energy system scheduling model that satisfies the user's load demand,take the economic,environmental protection,and renewable energy consumption of the system as the scheduling goals,and solve the numerical examples to verify that the proposed scheduling model has Better renewable energy consumption capacity.(3)To improve the problem that the standard particle swarm optimization(PSO)is easy to fall into local optimization,the niche PSO algorithm is combined with a non-linear decreasing inertia weight strategy,and an improved niche PSO algorithm is proposed,and the improved niche PSO is used.The algorithm solves the scheduling model of the integrated energy system,and the improved niche PSO algorithm obtained through the comparison of the solution results has better optimization ability.(4)Study the impact of electricity-to-gas(P2G)technology on the absorption of renewable energy in the system,and establish a P2G-based integrated energy system scheduling model.By comparing the results of the two scenarios,it is verified that the addition of P2G equipment can promote the integrated energy system Consumption of renewable energy.