Transient Coupled Electro-magnetic Thermal Analysis of a Permanent Magnet Brushless DC Motor
Permanent magnet brushless DC motors used in aerospace generally have numerous qualities such as light weight, small size, and high efficiency. This means that the thermal design of those motors is very serious. In order to obtain an accurate thermal field simulation of a permanent magnet brushless DC motor, both electromagnetic and thermal fields have to be calculated in a coupled simulation. In this paper, the computation is based on finite element method which applied to a four-pole 3-phase 30kW permanent magnet brushless DC motor. The coupling of the fields is performed via a detailed loss calculation and the temperature dependence of the permanent magnets and conductive materials. The simulation results are presented and the results are compared with experimental data to validate the model.
BLDC motor finite element method thermal analysis coupled field
Zhang Minghui Liu Weiguo
School of Automation Northwestern Polytechnic University Xian, 710129, China School of Electromecha School of Automation Northwestern Polytechnic University Xian, 710129, China
国际会议
长春
英文
221-224
2010-08-24（万方平台首次上网日期，不代表论文的发表时间）