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建立直线式制冷压缩机的理论数学模型,运用MATLAB进行仿真计算,在压缩机排气量稳定的情况下,对压缩机的几个主要参数如气体等效阻尼、推力常数及系统功率因素等进行合理的数值模拟和参数分析。通过变化缸径与活塞行程的比值,推导出设置合理的比值能提高能效比;通过加厚永磁体的厚度,推导出线圈的电流变小,中间损耗减小;通过共振原理推导出减小驱动电源的频率,可以缩减整机的体积。最终达到在提高压缩机的效率的同时,做到减小能量的损耗和对环境的污染。
The theoretical mathematic model of the linear refrigeration compressor is established and the simulation calculation is carried out by MATLAB. Under the condition of stable displacement of the compressor, several main parameters of the compressor such as gas equivalent damping, thrust constant and system power factor Reasonable numerical simulation and parameter analysis. By changing the ratio of bore to piston stroke, it is deduced that setting a reasonable ratio can improve the energy efficiency. By thickening the thickness of the permanent magnet, the current of the coil is reduced and the intermediate loss is reduced. The reduction of the drive power The frequency, can reduce the volume of the whole machine. In the end, the efficiency of the compressor is improved while reducing the energy consumption and environmental pollution.