基于供需博弈的园区综合能源微网系统优化

Optimization of Integrated Energy Micro- Grid System in Campus Based on Supply and Demand Game

为了提高综合能源系统性能,采用DeST软件对某办公园区(包含居住建筑、办公建筑、商业建筑)的冷热电负荷进行全年逐时动态模拟分析,并建立了3种综合能源系统的数学模型。提出了基于经济-环境效益的评价指标,并基于供需博弈对综合能源微网系统进行了配置优化,确定了不同的成本价格参数对优选方案的影响。环境效益评估结果表明:燃气轮机+光伏+风电系统的综合效益最佳,净现值成本较燃气轮机+光伏、燃气轮机+风电分别降低9.93%和3.24%;同时,该系统的二氧化碳排放量最低,碳排放量较传统分产系统降低约60%。该研究结果可为综合能源微网系统容量配置及运行优化提供参考。

To improve the performance of integrated energy systems, the DeST software is used to simulate the cooling, heating and electrical loads of an office park(containing residential buildings, office buildings and commercial buildings) on a time-by-time basis throughout the year, and mathematical models of three integrated energy systems are established. The evaluation indexes based on economic-environmental benefits are proposed, and the configuration optimization of the integrated energy microgrid system is carried out based on the supply-demand game to determine the influence of different cost-price parameters on the preferred solution. Environment benefit assessment results show that the gas turbine+photovoltaic+wind power system has the best overall benefits, with net present value costs 9.93% and 3.24% lower than those of gas turbine+photovoltaic and gas turbine+wind power, respectively;meanwhile, the system has the lowest CO2emissions, with carbon emissions about 60% lower than those of the traditional sub-production system. The research results can provide a reference for the capacity configuration and operation optimization of integrated energy microgrid system.