| 谐波注入式九相永磁同步电机矢量控制策略 |
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| 引用本文： | 梅柏杉,许望.谐波注入式九相永磁同步电机矢量控制策略[J].电测与仪表,2020,57(18):110-114. |
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| 作者姓名： | 梅柏杉 许望 |
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| 作者单位： | 上海电力大学,上海电力大学 |
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| 基金项目： | 上海绿色能源并网工程技术研究中心 |
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| 摘 要： | 用绕组函数法分析了多相永磁同步电机绕组磁势波的谐波构成，提出注入适当的谐波电流可以提高输出转矩，并且降低铁芯磁饱和。在旋转坐标系下建立了九相永磁同步电机数学模型，通过分析电磁转矩的构成，定量地分析了谐波电流在提升电磁转矩中的作用。推导出了基于最大逆变器功率约束的最优谐波注入比。最后，在simulink下搭建了九相矢量控制系统的仿真模型，对比了注入谐波前后电机输出转矩及电流波形的变化，并验证了注入谐波时电机的动态特性。仿真验证了理论方法的正确性和谐波电流注入的可行性。
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| 关 键 词： | 九相永磁同步电机 矢量控制 非正弦供电 谐波注入 |
| 收稿时间： | 2019/4/28 0:00:00 |
| 修稿时间： | 2019/4/28 0:00:00 |
A Vector Control Strategy for Multi-phase Permanent Magnet Synchronous Motor with Harmonic Injection |
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| meibaishan and xuwang.A Vector Control Strategy for Multi-phase Permanent Magnet Synchronous Motor with Harmonic Injection[J].Electrical Measurement & Instrumentation,2020,57(18):110-114. |
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| Authors: | meibaishan and xuwang |
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| Affiliation: | Shanghai University of Electric Power,Shanghai University of Electric Power |
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| Abstract: | The harmonic magnetic potential waves of the permanent magnet synchronous motor(PMSM) are analyzed with the winding function method. It is proved that the injection of appropriate harmonic current can improve the output torque. a mathematical model of the nine-phase PMSM is established under the rotating coordinate system. By analyzing the composition of electromagnetic torque, the optimal current harmonic injection ratio is obtained. An approximate simplified calculation method of injection rate is proposed with the constraint of maximum power. The simulation model of the nine-phase vector control system is built. The changes of the output torque and current waveform of the motor before and after the harmonic injection are compared. |
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| Keywords: | nine-phase PMSM vector control non-sinusoidal current excitation harmonic injection |
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