基于光伏发电的综合能源系统分析

Research on the comprehensive energy system based on the photovoltaic power generation

综合能源系统是一种高效的能源供给方式,向用户供电的同时利用发电机的余热进行供热和供冷,可实现能源的梯级利用,多能互补,减少污染物排放。我国对综合能源系统的研究起步较晚,相关的研究资料和经验都比较匮乏,且大多采用经济性评价指标对系统进行研究。文中根据综合能源系统的特点和具体需求情况,建立了各供能设备的数学模型以及优化模型,综合考虑经济成本、碳排放因素,通过编程建立仿真模型,探索含光伏发电的综合能源系统的最佳供能方式,当光伏发电机组接入系统后,年运行费用降低了35%,年碳排放减少了41.7%。

The comprehensive energy system is an efficient energy supply mode.It is used the waste heat of generator to heating and cooling while supplying power to users,which can realize the trapezoidal utilization of energy with multi-energy complement and reduce pollutant emissions.The research on comprehensive energy system started late in China and there is a lack of relevant research information and experience.Especially,most of the systems have been studied by using economic evaluation indicator.According to the characteristics and specific needs of the comprehensive energy system,the mathematical model of energy supply device are established as well as the optimization model.Taking economic cost and carbon emission factors into account,we programmatically establish simulation model to explore the best energy supply for the comprehensive energy system with photovoltaic power generation.When the photovoltaic power generation unit is connected to the system,the annual operating cost of system will be decreased by 35%and the annual carbon emissions are reduced by 41.7%.