考虑室内体感舒适度的城市楼宇型能量枢纽优化配置与定容应用分析

Optimal Configuration and Capacity Settings for Urban Building Energy Hub Considering Indoor Somatosensory Comfort

楼宇用能是城市能耗的重要组成部分。基于楼宇室内人体在各个季节的舒适体感温度,建立建筑和能量枢纽优化模型,据此计算维持楼宇最佳体感温度所需的冷热负荷,并基于外部能源要素价格、内部功率平衡等约束条件,面向用能托管的商业模式,提出楼宇冷热电气能量转换和存储设备的优化配置方法,以实现楼宇能量枢纽综合经济成本最优,并通过实际算例进行了验证。结果表明,充分发挥各类能量转换设备的互补特性,对于降低能量枢纽的综合成本起着关键作用。燃气内燃机满足电、热基荷,电网购电和热泵予以补充的方式具有较高的经济性。气价、峰谷电价差和燃气机热电比是影响整体经济性的重要因素。

Building energy constitutes the main portion of urban energy consumption.One of the main considerations of building energy systems design is the ideal comfortable human body temperature with respect to the season.Based on this temperature,we establish a building and energy hub optimization model that calculates the cooling and heating loads needed to maintain the best body temperature in a building.Based on external energy factors,internal power balance,and other constraints,an optimal method to allocate capacity for energy conversion and storage equipment in a building is proposed for the business model of energy-use deposition.This method is used to optimize the comprehensive economic cost of a building energy hub,which is then verified by practical examples.The results show that focusing on the complementary characteristics of various energy conversion equipment plays a key role in the total cost of an energy hub.The high-economy operation method is as follows:the gas engine meets the electric and thermal base loads,and the power grid and the heat pump supplement the rest of the loads.The price of gas,the gap between peak and valley electricity price,and the ratio of heat and power of gas engine are important factors for the overall economy.