面向社区能源规划的建筑总能系统模型

Building total energy system model(BETS)for communityenergy planning

针对社区能源系统多源多汇的.复杂性,提出采用总能系统思想构建用于社区地块尺度能源规划的建筑总能系统(BTES)模型.提出能量简化的概念并采用简化分析法绘制社区能量的能级状态图谱并确定能量可能的转化路径.将二次能源的生产、消费和不同地块间的交易抽象为多源多汇的能流网络.基于能量品位分析和能量供需平衡约束构建了以社区总化石能源成本最低为目标的社区能流优化模型.通过优化计算可获得当前技术水平条件下社区最优的能量转换路径及能量分配交换网络.结合案例说明了建筑总能系统简化分析模型的构建过程和具体应用.结果表明,基于总能系统思想构建的建筑总能系统模型可为社区地块尺度的能源利用规划提供技术支撑.

Community energy flows multi-source-sink characters result in system complexity,A building total energy system（BTES）model was preposed for community energy planning（CEP）.Simplified exergy was proposed to formulate energy grade map and explore feasible paths of energy conversions.Secondary energy conversion,consumption and transaction between different land parcels constituted a multi-sourcesink energy flow network. Taking energy grade fitting and supply-demand balance as constraint conditions,a BTES model was conducted to achieve the minimum of fossil energy consumption.The optimal community energy conversion and distribution network under the condition of current energy technology can be acquired from solving BTES.A BTES model was illustrated combined with a case study.Results show that BTES is helpful for CEP.