多因素影响下永磁电机定子铁耗计算

doi:1004-7018(2019)06-0016-04

微特电机 ›› 2019, Vol. 47 ›› Issue (6): 16-19.doi: 1004-7018(2019)06-0016-04

多因素影响下永磁电机定子铁耗计算

靳荣华,师蔚

上海工程技术大学,上海 201620

收稿日期:2018-03-20 出版日期:2019-06-28 发布日期:2019-07-01
作者简介:靳荣华(1993—),男,硕士研究生,研究方向为永磁电机铁心损耗研究与计算。
基金资助:
“十三五”国家重点研发计划项目(2016YFB01700)

Calculation of Stator Iron Loss of Permanent Magnet Motor Influenced by Multi-Factors

JIN Rong-hua,SHI Wei

Shanghai University of Engineering Science,Shanghai 201620,China

Received:2018-03-20 Online:2019-06-28 Published:2019-07-01

摘要/Abstract

摘要：

经典的常系数及分段常系数铁耗模型不能准确计算具有宽调速范围的变频永磁同步电机铁心损耗,也无法考虑到温度对铁耗损耗的影响。基于传统两项模型,综合考虑旋转磁场、高次谐波、趋肤效应、磁路饱和、小磁滞环路以及温度的影响,提出多因素影响下的永磁电机铁心损耗模型。针对一台PWM逆变器供电的内置式永磁同步电机定子铁心损耗进行计算,将计算值与实验值进行比较分析,结果表明,与传统模型相比,该模型在宽频调速范围内具有更高的准确性。

关键词: 永磁同步电机, 定子铁心损耗, 多因素影响

Abstract:

Classical constant coefficient and piecewise constant coefficient iron loss model can not accurately calculate the iron core loss of a variable frequency permanent magnet synchronous motor(PMSM) with wide speed regulation range. It is also impossible to consider the effect of temperature on the loss of iron consumption. Based on the traditional model, a variable coefficient mathematical model under the influence of multiple factors considering the effects of rotating magnetic field, higher harmonics, skin effect, saturation of magnetic circuit, small hysteresis loop and temperature was introduced. The stator core loss of an interior permanent magnet synchronous motor fed by a PWM inverter was calculated, and the calculation value was compared with the experimental value. The results show that the new model has higher accuracy in wide frequency range than the traditional model.

Key words: permanent magnet synchronous motor, stator iron core loss, multi-factor impact

中图分类号:

TM341
TM351

靳荣华, 师蔚. 多因素影响下永磁电机定子铁耗计算[J]. 微特电机, 2019, 47(6): 16-19.

JIN Rong-hua, SHI Wei. Calculation of Stator Iron Loss of Permanent Magnet Motor Influenced by Multi-Factors[J]. Small & Special Electrical Machines, 2019, 47(6): 16-19.

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多因素影响下永磁电机定子铁耗计算

Calculation of Stator Iron Loss of Permanent Magnet Motor Influenced by Multi-Factors

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