Research On Optimal Scheduling Strategy Of Energy Routing Based On Multi-Source Microgrid

Under the background of low utilization rate of fossil energy and increasingly serious problem of abandoning wind and solar energy.The Multi-Energy System(MES),which integrates the generation,transmission,storage and consumption of electrical energy,thermal energy,cold energy and natural gas energy,are an effective way to improve overall energy efficiency and promote the integration of large amounts of renewable energy.In recent years,MES has become an important topic in a large number of theoretical and practical research.In order to solve the problem of energy routing(energy transfer problem,that is,energy routing problem)and the complexity of energy optimal scheduling mode.In this thesis,m Multi-Source Microgrid is the main energy unit,with multiple energy flows such as electrical energy,thermal energy,cold energy,natural gas energy as the main transmission channels.Using energy routers and energy routing technology to analyze Multi-Source Microgrid energy supply,transmission,conversion and distribution,and research on Multi-Source Microgrid energy routing optimization scheduling strategy.The main contents are as follows:(1)Research on energy supply and energy transmission in Multi-Source Microgrid composed of electric energy,natural gas energy and thermal energy.A Multi-Source Microgrid energy network based on hierarchical structure of energy router is constructed.On this basis,the energy supply model of renewable energy power generation,natural gas cooling and cogeneration,and the transmission model of electric energy,gas and heat energy are established.(2)Research on energy conversion and distribution of Multi-Source Microgrid composed of electric energy,natural gas energy and thermal energy.A multi-energy routing topology model is constructed to connect the energy side and the demand side as an energy hub between energy supply,load,storage equipment,and transmission equipment.The active distribution of energy is carried out by establishing an active energy distribution model including energy storage and demand response.(3)Research on optimal scheduling Strategy of Energy routing in Multi-Source Microgrid composed of electric energy,natural gas energy and thermal energy.In order to realize the interaction and optimal scheduling of energy routing information between various energy sources and between source loads,a Multi-Source Microgrid multi-agent scheduling model is proposed,and a Multi-Source Microgrid multi-objective energy optimal scheduling model is established.Multi-agent ant colony algorithm is used to find the global optimal solution to maximize the economic and environmental benefits of the system.Based on the above research,combined with PSCAD and MATLAB software,an example of the energy routing optimization scheduling strategy proposed in this thesis is analyzed.