考虑转子磁场谐波的永磁同步电机双闭环非线性建模分析  

Double closed-loop nonlinear modeling and analysis for permanent magnet synchronous motor considering rotor magnetic field harmonics

作　　者：左曙光[1] 高丽华[1] 孟姝[1] 马琮淦[1] 谭钦文[1] 

机构地区：[1]同济大学新能源汽车工程中心,上海201804

出　　处：《中南大学学报（自然科学版）》2015年第9期3217-3223,共7页Journal of Central South University:Science and Technology

基　　金：国家自然科学基金资助项目(51375343);重大科研仪器设备专项(2012YQ150256)~~

摘　　要：为分析转子磁场谐波对电磁转矩的影响,同时准确模拟电机动态运行工况,在推导考虑转子磁场谐波非线性数学模型的基础上,建立考虑转子磁场谐波的Simulink双闭环非线性仿真模型,并与开环模型进行对比分析。得到转子磁场谐波使得电磁转矩中出现6K(K∈N)阶谐波成分,和6K阶以外的转速谐波成分。最后以目标电机为研究对象,进行动态高阶转矩试验测试。研究结果表明:该双闭环非线性模型的正确性,从而为电机动态运行工况下的转矩特性分析提供了一种准确、有效的建模方法。In order to analyze the influence of rotor field harmonics on the electromagnetic torque, and accurately simulate the motor dynamic operating conditions, a double closed-loop nonlinear Simulink model was established based on the deduction of mathematical model accounting for rotor magnetic field harmonics. The model was also compared with the open-loop model. The results show that the 6K（K∈N） components of electromagnetic torque and rotational speed harmonics except 6K come from the rotor magnetic field harmonics. Finally, high-order torque test was conducted for the target motor. The result shows that the established double closed-loop model is accurate and can help to analyze the dynamic torque characteristics.

关 键 词：永磁同步电机(PMSM) 磁场谐波 双闭环非线性 转矩波动 

分 类 号：TM341[电气工程—电机] TM351