A numerical model of a linear compressor for household refrigerator

Zhu, Zhennan; Liang, Kun; Li, Zhaohua; Jiang, Hanying; Meng, Zhongwei

doi:10.1016/j.applthermaleng.2021.117467

Cited by 11 publications

(1 citation statement)

References 30 publications

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“…Fig. 1 shows the structure diagram of the linear compressor.When the compressor is energized, when the magnetic field of the permanent magnet is repelled from the excitation magnetic field, the permanent magnet as the kinon is far away from the excitation magnetic field.When the magnetic field of the permanent magnet is in the same direction as the excitation magnetic field, the permanent magnet is close to the excitation magnetic field.The direction of the excitation magnetic field changes with the direction of the alternating current, so the permanent magnet will periodically reciprocate with the direction of the alternating current, and the movement frequency of the permanent magnet is consistent with the input current frequency of the compressor.The single operation of the linear compressor can be decomposed into four processes of inhalation, compression, exhaust and expansion.The four processes form a complete movement.The internal moving parts of the compressor complete the periodic reciprocating motion under the action of alternating current [22][23][24][25][26].…”

Section: Establishment Of Low-energy Consumption Mathematical Model O...mentioning

confidence: 99%

Study on low energy consumption control method and working performance of linear compressor

LI,

WU,

HUANG

et al. 2024

Preprint

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For the high performance study of linear compressor with single mathematical model and control method, by analyzing the working principle of linear compressor, based on Lyapunov function, establish the mathematical model of low energy compressor system with frequency input and power output, compensate the uncertainty of the compressor, improve the transient performance, simulation and stability analysis.The compressor performance test bench was set up, and the fully automated multi-parameter test was realized based on Matlab software, obtaining the influence of parameter change on the performance of the compressor.The results show that when the working frequency is 54Hz , the refrigeration system enters the stable state for a shorter time and the power is lower; when the evaporation temperature is 30℃, the stability time is shorter and the power is lower; when the refrigerant is charged 300g, the stability time is shorter; the stable state and the consumption time is reduced by 32%, which proves that the proposed compressor system modeling method is feasible and efficient, and the proposed model control strategy has good low energy consumption and effectiveness.

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Section: Establishment Of Low-energy Consumption Mathematical Model O...mentioning

confidence: 99%