Solar-air source heat pump (solar-ASHP) system has a potential application in the field of hot water and space heating in residential buildings. Such system features the complementary advantages to solve the discontinuous operation of the single solar system and the frosting issue of the single ASHP system. This paper built the solar-ASHP systems in Kunming and Shangri-La, and tested the system performance under different weather conditions in these two regions of plateau. Meanwhile, the transient heat balance models of the system were established under the sunlight time and non-sunlight time and were verified by the experimental results. Moreover, the verified model was applied to reveal the energy balance performance between the energy supply and building heat demand. The law of the system performance affected by the ambient temperature, effective heat collecting area, and cumulative heating capacity of collector was explored by the validated model. The results indicate that when the ambient temperature decreases by 1 °C during non-sunlight time, the energy efficiency ratio decreases by about 0.07. A square meter decline in the effective heat collecting area pushes an increase in the heating capacity of 5.75 MJ. Meanwhile, the cumulative heating capacity of collector increases by 5 MJ, and the ASHP energy consumption decreases by 0.54 kWh. The dynamic changes of the ambient temperature and instantaneous solar radiation are the main reasons of the heat balance errors. Therefore, both the developed system and model are feasible and reliable in different climate regions.

太阳能空气源热泵（solar-ASHP）系统在住宅建筑的热水和空间供暖领域具有潜在的应用。这种系统具有互补的优势，可以解决单个太阳能系统的不连续运行以及单个ASHP系统的结霜问题。本文在昆明和香格里拉建立了太阳能-ASHP系统，并在这两个高原地区的不同天气条件下测试了系统性能。同时，建立了系统在日照时间和非日照时间的瞬态热平衡模型，并通过实验结果进行了验证。此外，验证模型被用来揭示能源供应和建筑热需求之间的能量平衡性能。系统性能规律受环境温度影响，验证了模型的有效集热面积和集热器的累积热容量。结果表明，当环境温度在非日光下下降1°C时，能量效率比下降约0.07。有效集热面积减少1平方米，热容量增加5.75 MJ。同时，集热器的累积加热容量增加了5 MJ，并且ASHP能耗降低了0.54 kWh。环境温度和瞬时太阳辐射的动态变化是热平衡误差的主要原因。因此，所开发的系统和模型在不同气候区域都是可行和可靠的。结果表明，当环境温度在非日光下下降1°C时，能量效率比下降约0.07。有效集热面积减少1平方米，热容量增加5.75 MJ。同时，集热器的累积加热容量增加了5 MJ，并且ASHP能耗降低了0.54 kWh。环境温度的动态变化和瞬时太阳辐射是热平衡误差的主要原因。因此，所开发的系统和模型在不同气候区域都是可行和可靠的。结果表明，当环境温度在非日光下下降1°C时，能量效率比下降约0.07。有效集热面积减少1平方米，热容量增加5.75 MJ。同时，集热器的累积加热容量增加了5 MJ，并且ASHP能耗降低了0.54 kWh。环境温度和瞬时太阳辐射的动态变化是热平衡误差的主要原因。因此，所开发的系统和模型在不同气候区域都是可行和可靠的。有效集热面积减少1平方米，热容量增加5.75 MJ。同时，集热器的累积加热容量增加了5 MJ，并且ASHP能耗降低了0.54 kWh。环境温度的动态变化和瞬时太阳辐射是热平衡误差的主要原因。因此，所开发的系统和模型在不同气候区域都是可行和可靠的。有效集热面积减少1平方米，热容量增加5.75 MJ。同时，集热器的累积加热容量增加了5 MJ，并且ASHP能耗降低了0.54 kWh。环境温度和瞬时太阳辐射的动态变化是热平衡误差的主要原因。因此，所开发的系统和模型在不同气候区域都是可行和可靠的。