| 基于损耗模型的永磁同步电机高效控制参数敏感性分析 |
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| 引用本文： | 肖仁鑫,李健,贾现广.基于损耗模型的永磁同步电机高效控制参数敏感性分析[J].农业装备与车辆工程,2021(3). |
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| 作者姓名： | 肖仁鑫 李健 贾现广 |
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| 作者单位： | 昆明理工大学交通工程学院 |
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| 摘 要： | 针对分析参数变化对电机损耗效率的影响建立了永磁同步电机(Permanent Magnet Synchronous Motor)损耗模型,推导出电机损耗最小的最优定子电流。然后,分析铁损电阻、铜损电阻以及磁链变化对损耗精度的影响。结果表明,当铁损电阻变为原来的1.2倍时,总损耗效率增加1.0%;当铜损电阻变为原来1.5倍时,总损耗效率下降28%;当磁链变为原来的1.4倍时,总损耗效率下降1.4%。通过电机损耗的参数敏感性分析,为基于模型的电机高效率控制提供了重要参考。
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| 关 键 词： | 永磁同步电机 损耗模型 效率最优控制 参数敏感性 |
Parameter Sensitivity Analysis of Permanent Magnet Synchronous Motor Efficient Control Based on Loss Model |
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| Xiao Renxin,Li Jian,Jia Xianguang.Parameter Sensitivity Analysis of Permanent Magnet Synchronous Motor Efficient Control Based on Loss Model[J].Agricultural Equipment & Vehicle Engineering,2021(3). |
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| Authors: | Xiao Renxin Li Jian Jia Xianguang |
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| Institution: | (Faculty of Transportation Engineering,Kunming University of Science and Technology,Kunming City,Yunnan Province 650500,China) |
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| Abstract: | At present,when many scholars model permanent magnet synchronous motor,they usually regard motor parameters as fixed values.But,the parameters of PMSM will be affected by temperature,magnetic saturation and other external environment in the actual operation process.So,it is very important to analyze the influence of parameter change on loss model.The loss model of PMSM is established,the optimal stator current is derived.Then,we analyze the influence of core loss resistance,copper loss resistance and flux change on loss accuracy.The results show that when the core resistance becomes 1.2 times that of its original value,total loss efficiency reduced by 1.0%;When the copper loss resistance becomes 1.5 times that of its original value,total loss efficiency improved by 28%;when the flux linkage becomes 1.2 times that of its original value,total loss efficiency reduced by 1.4%.Therefore,through the parameter sensitivity analysis of motor loss,it provides an important reference for high-efficiency control of motor based on model. |
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| Keywords: | permanent magnet synchronous motor loss model efficiency optimal control parameter sensitivity |
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