Operation strategy optimization of a solar-coupled auxiliary heat source heating system in extremely cold and high solar irradiation regions

Qi Changxin; Wang Gang; Wang Yingchao; Yin Shaowu; Li Minyang; Tong Lige

doi:10.19799/j.cnki.2095-4239.2026.0286

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Operation strategy optimization of a solar-coupled auxiliary heat source heating system in extremely cold and high solar irradiation regions

更新时间：2026-05-07

- Operation strategy optimization of a solar-coupled auxiliary heat source heating system in extremely cold and high solar irradiation regions
- Energy Storage Science and Technology Pages: 1-10(2026)
- 作者机构：
  
  1.新疆工程学院，新疆乌鲁木齐 830023
  2.北京科技大学，北京市 100083
- 作者简介：
- 基金信息：
- DOI：10.19799/j.cnki.2095-4239.2026.0286
  CLC： TK 515
- Received：03 April 2026，
  
  Revised：2026-05-06，
  
  Online First：07 May 2026，
- 稿件说明：
移动端阅览
齐长鑫, 王刚, 王营超, 等. 严寒高辐照地区太阳能耦合辅助热源供暖系统运行策略优化[J]. 储能科学与技术, XXXX, XX(XX): 1-10.

Qi Changxin, Wang Gang, Wang Yingchao, et al. Operation strategy optimization of a solar-coupled auxiliary heat source heating system in extremely cold and high solar irradiation regions[J]. Energy Storage Science and Technology, XXXX, XX(XX): 1-10.
齐长鑫, 王刚, 王营超, 等. 严寒高辐照地区太阳能耦合辅助热源供暖系统运行策略优化[J]. 储能科学与技术, XXXX, XX(XX): 1-10. DOI： 10.19799/j.cnki.2095-4239.2026.0286.

Qi Changxin, Wang Gang, Wang Yingchao, et al. Operation strategy optimization of a solar-coupled auxiliary heat source heating system in extremely cold and high solar irradiation regions[J]. Energy Storage Science and Technology, XXXX, XX(XX): 1-10. DOI： 10.19799/j.cnki.2095-4239.2026.0286.

摘要

针对新疆哈密地区某5800 m

办公楼太阳能耦合辅助热源供暖系统存在运行能耗高、供热温度波动剧烈、极端天气下热保障能力不足的问题，开展了性能评估与策略优化研究。结合工程实践中受屋顶结构载荷限制，实际蓄热水箱（5 m

）远低于理论设计值（24.64 m

）的约束条件，提出了一种集成集热侧动态温差控制与供暖侧分季节自适应变供温的运行策略优化方案。通过构建25000 kg/h大流量循环模式，将建筑围护结构转化为主动蓄热主体，以弥补小容积水箱的调蓄缺陷。集热侧遵循10℃启动、2℃关闭的逻辑，供暖侧则依据室外气温时序特征划分为五类特征模态进行自适应调节。利用TRNSYS程序对优化系统进行仿真模拟验证，同时针对空气源

热泵在极端环境下性能系数（

COP

）非线性衰减特性，将电加热功率由195 kW增补至255 kW。经安全核算，在极端工况辅助热源全功率开启时，既有525 kVA变压器负载率为81.5%，处于安全运行区间，无需增容改造。结果表明，系统实现了供热功率和建筑负荷的时序精准匹配，供暖季总能耗降低13.29%，年运行成本节约12.58%，极端工况最低供水温度稳定在35℃以上。该研究为严寒高辐照地区在有限边界约束下的系统升级提供了量化参考。

Abstract

Analyzed the performance and optimized the operation strategy of a solar-coupled auxiliary heat source heating system for a 5

800 m

office building in Hami

Xinjiang

to mitigate high energy consumption

severe temperature fluctuations

and insufficient thermal security. Considering the engineering constraint where the actual thermal storage tank volume(5 m

) is significantly lower than the design value (24.64 m

) due to roof load limits

an optimized strategy was developed. This strategy integrates dynamic temperature difference control on the collector side with seasonally adaptive variable supply temperatures on the heating side. By establishing a 25

000 kg/h high-flow circulation mode

the building envelope is transformed into an active thermal storage body to compensate for the limited buffer capacity of the small-volume tank. The collector side follows a logic of starting at 10℃ and stopping at 2℃

while the heating side performs adaptive regulation across five characteristic modes based on outdoor temperature time-series features. Validated via TRNSYS simulation and accounting for the non-linear attenuation of the air-source heat pump's coefficient of performance (

COP

) in extreme environments

the electric heating power was reinforced from195 kW to 255 kW. Safety assessments confirm that the load rate of the existing 525 kVA transformer remains at 81.5% during full-power auxiliary heating in extreme conditions

staying within the safe operating range without requiring capacity expansion. Results demonstrate that the system achieves precise temporal matching between heating power and building load

achieving a 13.29% reduction in total heating season energy

consumption and a 12.58% saving in annual operating costs. The minimum supply temperature during extreme conditions stabilizes above 35℃. This research provides a quantitative reference for upgrading heating systems under finite boundary constraints in severe cold and high irradiation regions.

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