| 摘要: |
| 空气源热泵在除霜过程中“误除霜”事故时有发生，“有霜不除”会导致机组制热能力和性能下降，“无霜除霜”会导致系统供热量损失，因此空气源热泵在除霜时最佳除霜起止点的判定尤为重要。除霜控制是通过选择恰当的除霜切入点和结束点，使除霜周期内空气源热泵系统稳定性好、节能以及能保证室内的热舒适。本文通过总结国内外学者对除霜控制方法的研究，分析了直接测量霜层厚度、间接监测结霜程度以及通过智能算法输出除霜起止条件三种除霜控制方法的局限性，分别从人工智能除霜控制方法的研究，抑霜技术与除霜控制方法的结合，除霜控制方法的评价体系方面对今后的研究方向作出展望。 |
| 关键词: 空气源热泵 抑霜技术 除霜控制 评价体系 |
| DOI： |
| Received:March 12, 2021Revised:May 19, 2021 |
| 基金项目:国家自然科学基金（52076158）资助项目。 |
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| Research Status and Prospect on Defrosting Control Method of Air Source Heat Pump |
|
Wang Fenghao1,2, Ma Longxia3, Wang Zhihua1,2, Lou Yechun3, Liu Zixuan3
|
| (1.School of Human Settlement Environment and Architectural Engineering, Xi'an Jiaotong University;2.Building Energy Conservation Research Center, Xi'an Jiaotong University;3.School of Human Settlement Environment and Architectural Engineering, Xi 'an Jiaotong University) |
| Abstract: |
| The mal-defrosting phenomenon occurs frequently when the air source heat pump (ASHP) is defrosting, which causes a decline in the heating capacity, performance, and heating loss. Therefore, it is crucial to determine the most appropriate start and end times. To control the start and end time of defrosting properly, the ASHP has a state of stable performance and energy saving and can ensure thermal comfort in the room during defrosting. In this study, the research on defrosting control methods at home and abroad are summarized, and the limitations of defrosting control methods are analyzed, including measuring the frost thickness directly, monitoring the frost degree indirectly, and determining the start and end times using an intelligent algorithm. The idea of a combination of frost suppression technology and a defrosting control method, the relationship between the type of equipment and defrosting control method, as well as an evaluation system for defrosting control methods were put forward as the future research direction in this paper. |
| Key words: air source heat pump frost suppression technology defrosting control evaluation system |
