| 永磁电动机不同运行条件下的损耗研究 |
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| 引用本文： | 胡笳,罗应立,李志强,刘明基.永磁电动机不同运行条件下的损耗研究[J].电机与控制学报,2009,13(1). |
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| 作者姓名： | 胡笳 罗应立 李志强 刘明基 |
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| 作者单位： | 华北电力大学,电气与电子工程学院,北京,102206 |
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| 摘 要： | 自起动永磁同步电动机,由于其运行条件经常发生变化,致使电机内部的损耗随之改变,为了研究影响其损耗的主要因素及其在不同运行条件的变化规律,在充分考虑谐波磁场与电流的情况下,利用时步有限元方法对电机各部分损耗密度进行了准确计算,从而得到不同电压及负载条件下的定、转子铜耗与铁耗.通过对定子电流、导条电流密度以及铁心磁密的谐波分析,研究了损耗的谐波含量,进而得出了影响永磁电机损耗的主要因素及其在不同运行条件的变化规律,揭示了空间齿谐波磁场对转子损耗的重要影响.通过仿真结果与实测数据进行对比,验证了损耗计算的合理性.
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| 关 键 词： | 永磁同步电机 有限元 铜耗 铁耗 谐波 |
Investigation of losses in permanent magnet synchronous motor under different operation conditions |
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| HU Jia,LUO Ying-li,LI Zhi-qiang,LIU Ming-ji.Investigation of losses in permanent magnet synchronous motor under different operation conditions[J].Electric Machines and Control,2009,13(1). |
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| Authors: | HU Jia LUO Ying-li LI Zhi-qiang LIU Ming-ji |
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| Affiliation: | School of Electrical and Electronic Engineering;North China Electric Power University;Beijing 102206;China |
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| Abstract: | The operation condition of line-start permanent magnet synchronous motor(PMSM) varies frequently,and its losses change correspondingly.In order to investigate the main factor which affects losses and its variation,Time-Stepping Finite Element Method(T-S FEM) was employed to calculate the loss density in different part of PMSM considering the harmonic magnetic field and current,then the copper and iron losses under different voltage and load conditions were obtained,and it's harmonic component was analyzed b... |
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| Keywords: | permanent magnet synchronous motors finite element copper loss iron loss harmonic |
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