方波电流和正弦波电流对无刷直流电动机转子温升的影响  

Influence of Square Wave Current and Sine Wave Current on Rotor Temperature in Brushless DC Motor

作　　者：解恩[1] 王璞[1] 

机构地区：[1]西北工业大学,陕西西安710129

出　　处：《微特电机》2012年第10期1-4,共4页Small & Special Electrical Machines

摘　　要：针对无刷直流电动机转子温升问题,对电枢方波电流数学建模并进行傅里叶分解,得到各次谐波的幅值比例,这些谐波会在电机转子中产生损耗。为了测定方波电流、正弦波电流以及电机齿槽结构对电机转子温升影响程度,以两台同样11 kW无刷直流电动机组成对拖结构,设计实验分离出额定条件下他们对转子所产生的温升。For rotor temperature rise problem of brushless DC motor,the math model was constructed to square wave armature current ,and Fourier decomposition was done. Each order harmonic amplitude was got ,and they would cause losses in rotor. For measure the influence of square wave current, sine wave current and cogging construction on rotor temperature rise,two same 11 kW brushless DC motors were selected to form dual-drive construction. Some experiments were designed on rated load to separate their own rotor temperature rise.

关 键 词：方波电流 正弦波电流 转子温升 无刷直流电动机 对拖实验 

分 类 号：TM33[电气工程—电机]