热力站用电驱动热泵补热系统优化研究

Optimization of electrically driven heat pump heating system for heat stations

中文关键词: 电驱动热泵  补热  双层优化模型  TRNSYS模拟

英文关键词: electric heat pump  heat supplement  bi-level optimization model  TRNSYS simulation

中文摘要:

      为应对热源紧缺等带来的热力站供热能力不足问题,同时避免一次网改造带来的基础设施施工难题,以某住宅小区集中供热热力站为例,提出电驱动热泵补热方案。基于TRNSYS平台建立了电驱动热泵补热系统的仿真模型,利用双层协同优化方法,以寿命周期经济性最优为目标对补热系统中主要设备的容量设计和运行方案进行优化,并从经济性和对电网的影响等角度评价系统的应用效果。结果表明,系统具有较好的经济性；此外,采用该系统后电网的季不均衡系数提高了13.4%,增大了电力系统资产利用率。

英文摘要:

      In order to solve the insufficient heating capacity of heating stations caused by heat source shortage, and to avoid the high cost of a primary heating network transformation, an electric heat pump heating scheme is proposed by taking a heating station of a residential community as an example. Based on the TRNSYS, a simulation model of the electric heat pump heating system is established. The bi-level optimization model is used to optimize the capacity design and operation scheme of the main equipment with the goal of optimal life cycle economy. Finally, the marketing potentiality of the system is evaluated from the perspectives of economy and impact on the power grid. The results show that the present value of the total investment in the life cycle of the electric heat pump heating system is positive, indicating that the system has good economy. In addition, the seasonal imbalance coefficient of the power grid increased by 13.4% after the adoption of this system, which increased the power utilization rate.