In order to improve the shortcomings of the single-equipment operation stability and low economical efficiency of greenhouse air-conditioning systems in cold regions. This paper analyzed the annual temperature data in Harbin and proposes two solutions: parallel system and complementary system. From the aspect of energy consumption and economy, compare it with the conventional way. The results showed that the annual energy consumption of the parallel system was 38. 6％ less than that of the complementary system; the initial investment of the parallel system was the lowest; the initial investment of the ground source heat pump system was 1. 54 times that of the parallel system; the annual value of the complementary system cost was 1. 6 times that of the parallel system; and the parallel system complementary systems were superior to ground source heat pump systems in terms of operational stability. Taking the above factors into consideration, the parallel system was the best choice.%为了改善严寒地区温室空调系统单一, 设备运行稳定性不高和经济性较低的缺点, 通过对哈尔滨地区全年温度数据进行分析, 提出了并联系统和互补系统两种解决方案.从能耗和经济性两方面, 将其与常规方式进行对比分析.结果表明, 并联系统全年能耗比互补系统节能38. 6％;并联系统初投资最低, 地源热泵系统初投资为并联系统的1. 54倍;互补系统费用年值是并联系统的1. 6倍;并联系统和互补系统在运行稳定性方面优于地源热泵系统.综合上述因素, 并联系统为最佳选择方案.
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