直线压缩机磁路分析方法的研究  

Research on Magnetic Circuit Analysis Methods of Linear Compressor

作　　者：李志海[1] 

机构地区：[1]广东石油化工学院,茂名525000

出　　处：《微特电机》2015年第6期5-8,共4页Small & Special Electrical Machines

基　　金：广东省普通高校青年创新人才项目(自然科学类)(2014KQNCX198);广东石油化工学院自然科学研究项目;广东省石化装备故障诊断重点实验室开放基金项目(GDUPTLAB201320)

摘　　要：直线压缩机是一种高效冰箱压缩机,其电机效率可达95%,研究其设计和应用具有重要的节能效益。直线压缩机磁路具有特殊结构,硅钢片之间存在气隙,因而现有磁路设计方法不完全适应其磁路设计和优化。通过分析直线压缩机磁路结构的特点,对磁路进行分层研究,建立以各层磁路宽度为设计变量,总磁阻最小为目标函数的优化设计模型,再通过优化计算确定各层磁路宽度,进而分析确定磁路的磁通分布和磁感应强度。将计算结果与有限元计算结果进行比较,结果表明该分析方法是正确的,从而为直线压缩机磁路设计和优化提供一种新的方法。Linear compressor is an efficient refrigerator compressor and its motor efficiency is up to 95%. It has impor- tant energy efficiency to research on its design and application. Magnetic circuit of Linear compressor has a special struc- ture. There is gap between the silicon steel sheets. And the existing circuit design methods do not fully meet its circuit de- sign and optimization. By analyzing the characteristics of the magnetic structure of the linear compressor, a magnetic circuit analysis method was established. Magnetic circuit was divided into several layers. The width of each layer was used as the design variables and the minimum of total magnetoresistance was used as objective function. The width of each layer was designed through optimization calculation. Then the flux distribution and the magnetic flux density of the magnetic circuit were obtained. The calculation results and finite element results were compared. And the results show that the magnetic cir- cuit analysis method is correct, thus providing a new method for the circuit design and optimization of linear compressor.

关 键 词：直线压缩机 直线电机 磁路分析 优化设计 

分 类 号：TM359.4[电气工程—电机]