| 四相开关磁阻电机带直流偏置正弦激励特性研究 |
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| 引用本文： | 李民中,李冲,潘亚菲,蒯松岩.四相开关磁阻电机带直流偏置正弦激励特性研究[J].微电机,2020,0(10):82-87. |
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| 作者姓名： | 李民中 李冲 潘亚菲 蒯松岩 |
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| 作者单位： | (1.河南平宝煤业有限公司,河南许昌 461000;2.中国矿业大学,江苏徐州 221116) |
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| 摘 要： | 针对四相开关磁阻电机（SRM）传统方波励磁转矩脉动大的问题，提出了一种单极性正弦励磁控制方法。首先建立了两相旋转坐标系下四相SRM的数学模型，分析了带直流偏置正弦励磁时瞬时转矩，结果表明转矩和iq分量成正比并且转矩不含三相SRM单极性正弦励磁时的磁阻转矩分量。然后研究了在两相旋转坐标系下对电流分量的控制方法，转矩分量采用SPWM控制，励磁分量采用电流滞环跟踪控制。最后对本文提出的控制方法通过有限元进行仿真分析并给出实验验证。实验结果表明在该种控制方式下SRM的转矩脉动小于传统方波励磁的转矩脉动。
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| 关 键 词： | 开关磁阻电机 正弦励磁 转矩脉动 直流偏置 |
DC-biased sinusoidal excited four phase switched reluctance motor |
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| Li Mingzhong,Li Chong,Pan Yafei,Kuai Songyan.DC-biased sinusoidal excited four phase switched reluctance motor[J].Micromotors,2020,0(10):82-87. |
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| Authors: | Li Mingzhong Li Chong Pan Yafei Kuai Songyan |
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| Affiliation: | （1 Henan Pingbao Coal Industry co. LTD，XUCHANG， 461000,China；2 China University of Ming and Technology， XUZHOU， 221116,China） |
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| Abstract: | In this paper, a DC-biased sinusoidal excited control method is proposed for a traditional four-phase switched reluctance motor (SRM). Based on the method, the torque ripple is smaller than of traditional square excitation. Firstly, the mathematical model of four-phase SRM with DC-biased sinusoidal excitation in dq-axis rotating coordinate system is established and the instantaneous torque is analyzed. It is found that the torque is proportional to q-axis current and does not contain reluctance torque component with DC-biased sinusoidal excitation for four-phase SRM. Then the current control methods for torque component and magnetic field component are studied. The torque component is controlled by Sinusoidal PWM (SPWM) method, and the magnetic field component is controlled by current hysteresis tracking method. Finally, the proposed method is verified by finite element simulation and experiment results. Compared with the square excitation, the torque ripple is reduced by about 40%. |
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| Keywords: | switched reluctance motor sinusoidal excited torque ripple DC-biased |
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