集中深层地源热泵、水体蓄热及光伏于一体的综合能源系统设计与应用:以寒冷地区某住宅群为例
Design and application of an integrated energy system combining middle-depth ground-source heat pump, water heat storage and photovoltaics: Taking a residential complex in cold zone as an example
摘要：
针对寒冷地区某大型住宅群的供暖需求,提出了一种集中深层地源热泵、水体蓄热及光伏于一体的综合能源系统设计方案。运用DeST软件模拟热负荷,并借助PVsyst软件预测发电量。在此基础上,设计了基于不同时段蓄热水箱容量、光伏发电特性、建筑热负荷特性及市政电力供应特性的综合能源系统与建筑末端供需匹配的运行策略,并与传统燃气锅炉系统及传统中深层地源热泵系统进行了对比分析。研究结果表明:综合能源系统在降低运行成本和减少碳排放方面展现出显著优势,年平均光伏消纳率为77.67%,较燃气锅炉系统每年可节约83.44%的运行费用,减少77.66%的碳排放量。
Abstract：
This paper presents an integrated energy system design scheme that combines middle-depth ground-source heat pump, water heat storage, and photovoltaics for heating a large residential complex in cold zone. The study uses DeST software to simulate heating loads and PVsyst software to forecast power generation. Based on this, an operation strategy for the integrated energy system is designed to match the supply and demand at the building end, considering the thermal storage tank capacity, the characteristics of photovoltaic power generation, the heating load characteristics of the building, and the characteristics of municipal power supply in different time periods. A comparative analysis is also conducted with traditional gas boiler systems and traditional middle-depth ground-source heat pump systems. The results show that the integrated energy system has significant advantages in reducing operating costs and carbon emissions.The average annual photovoltaic absorption rate of the integrated energy system is 77.67%, which can save 83.44% of the operating costs and reduce carbon emissions by 77.66% compared with the gas boiler system.
Keywords:middle-depth ground-source heat pump; water heat storage; photovoltaic power generation; integrated energy system; operation strategy; cold zone; low-carbon heating