Research Status and Prospect on Defrosting Control Method of Air Source Heat Pump

Wang Fenghao; Ma Longxia; Wang Zhihua; Lou Yechun; Liu Zixuan

doi:10.3969/j.issn.0253-4339.2021.05.027

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Research Status and Prospect on Defrosting Control Method of Air Source Heat Pump

更新时间：2024-07-18

- Research Status and Prospect on Defrosting Control Method of Air Source Heat Pump
- Journal of Refrigeration Vol. 42, Issue 5, (2021)
- 作者机构：
  
  1. 西安交通大学人居环境与建筑工程学院
  2. 西安交通大学建筑节能研究中心
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0253-4339.2021.05.027
  CLC：
- Published：01 January 2021
- 稿件说明：
移动端阅览
Wang Fenghao, Ma Longxia, Wang Zhihua, et al. Research Status and Prospect on Defrosting Control Method of Air Source Heat Pump[J]. Journal of refrigeration, 2021, 42(5).
DOI：

Wang Fenghao, Ma Longxia, Wang Zhihua, et al. Research Status and Prospect on Defrosting Control Method of Air Source Heat Pump[J]. Journal of refrigeration, 2021, 42(5). DOI： 10.3969/j.issn.0253-4339.2021.05.027.

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。

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.

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