Mechanism Analysis on the Fluctuation of Linear Compressor in Refrigerator

Zou Huiming; Wang Min; Tang Mingsheng; Tian Changqing

doi:10.3969/j.issn.0253-4339.2019.03.037

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Mechanism Analysis on the Fluctuation of Linear Compressor in Refrigerator

更新时间：2024-07-18

- Mechanism Analysis on the Fluctuation of Linear Compressor in Refrigerator
- Journal of Refrigeration Vol. 40, Issue 3, (2019)
- 作者机构：
  
  1. 中国科学院理化技术研究所中国科学院低温工程学重点实验室热力过程节能技术北京市重点实验室
  2. 中国科学院大学
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0253-4339.2019.03.037
  CLC：
- Published：2019
- 稿件说明：
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Zou Huiming, Wang Min, Tang Mingsheng, et al. Mechanism Analysis on the Fluctuation of Linear Compressor in Refrigerator[J]. Journal of refrigeration, 2019, 40(3).
DOI：

Zou Huiming, Wang Min, Tang Mingsheng, et al. Mechanism Analysis on the Fluctuation of Linear Compressor in Refrigerator[J]. Journal of refrigeration, 2019, 40(3). DOI： 10.3969/j.issn.0253-4339.2019.03.037.

摘要

直线压缩机冰箱制冷系统的实验研究显示，在初始启动调节后供电参数保持不变过程中，直线压缩机出现了不稳定波动现象。最大的行程波动率约为3.8%，输入功的波动率约为21.3%，波动周期约为220 s。通过建立的直线压缩机动态仿真模型，对该不稳定现象进行解耦分析，结果表明：吸气压力的波动对直线压缩机行程的影响较大，排气压力的波动对其影响很小，但行程的波动对排气压力有一定的影响。直线压缩机启动过程中行程的反复调节引起了排气压力出现较大的波动，经过一段稳定运行后，该波动传递到直线压缩机的吸气端，从而引起了所述的不稳定波动。

Abstract

The experimental results of a refrigerator system with linear compressor showed that there was a period of piston stroke fluctuation as the supply power remained unchanged after an initial start-up adjustment. The maximum fluctuation rate of the piston stroke was 3.8% and that of the input power was 21.3%. The period of fluctuation was approximately 220 s. In this paper

the mechanism of this fluctuation is analyzed based on a simulation model set up for linear compressor. The fluctuation of the suction pressure is the dominant cause of stroke fluctuation. The fluctuation of the discharge pressure has little influence on the stroke fluctuation

while the stroke fluctuation has a significant effect on the discharge pressure. The fluctuation of the discharge pressure caused by the adjustment of the stroke control transfers to the suction part and causes the unstable fluctuation.

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