Comprehensive Energy System Optimization Taking Into Account Carbon Emissions And Renewable Energy Quota System

Since the development of the industrial revolution,the demand for energy has increased exponentially.However,with the rapid development of society and economy,the problems of energy shortage and environmental degradation caused by the over-exploitation and utilization of fossil energy such as petroleum have become increasingly serious.How to get rid of dependence on traditional fossil energy,improve energy utilization efficiency,and control environmental degradation has become an urgent problem in the world today.The integrated energy system(IES)can integrate multiple energy sources including wind energy,photovoltaics and other renewable energy sources,and use coupling devices to realize the circulation of energy between different subsystems,and cascade utilization of energy.Significantly improving energy utilization efficiency has been widely recognized as one of the important technical means to solve energy and environmental problems,and has received extensive attention in the international energy field.Based on the above background,this paper takes the combined cooling,heating and power multi-park integrated energy system as the research object,deeper research on the model and method of the combined cooling,heating and power integrated energy system is carried out in three aspects including the combined cooling,heating and power microgrid mathematical modeling,the low-carbon economic dispatch of the multi-park integrated energy system considering the power-to-gas system,the heating network and the multi-park integrated energy system scheduling optimization of the green certificate transaction.The research work of this paper is as follows:(1)Through in-depth analysis and research on the overall structure and working principle of each core equipment in the integrated energy system,related mathematical models have been established,including micro gas turbines,wind generators,photovoltaic equipment,electric chillers,absorption chillers,gas boilers,batteries,etc.Secondly,the thermal network is introduced in detail and related models has been established.(2)Establish a multi-park integrated energy system containing a thermal network,and on this basis,introduce Power-to-Gas(P2G)equipment,aiming at the most economical and maximizing renewable energy consumption.The multi-park integrated energy system optimization model that comprehensively considers the thermal network and P2 G equipment is constructed,and the proposed optimization model is verified through calculation examples.(3)In order to further promote the consumption of renewable energy,this paper studies the renewable portfolio standard and establishes an IES optimization model that comprehensively considers the green certificate transaction mechanism and the heating network.In order to analyze the impact of the heat network and green certificate trading mechanism on the ability to absorb renewable energy,this paper establishes four typical scenarios for research,and analyzes the economy of the system and the consumption of renewable energy in various scenarios based on the simulation data results.