| 基于定子电阻自适应辨识的感应电机死区补偿 |
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| 引用本文： | 徐翔,崔冉冉.基于定子电阻自适应辨识的感应电机死区补偿[J].航空动力学报,2019,46(8):37-40, 46. |
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| 作者姓名： | 徐翔 崔冉冉 |
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| 作者单位： | 洛阳矿山机械工程设计研究院有限责任公司,河南 洛阳471039,洛阳市第二中学,河南 洛阳471000 |
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| 摘 要： | 电压源型逆变器由于死区效应,导致输出发生非标准化、畸变化,影响感应电机的控制精确度,特别是无速度传感器矢量控制,同时造成电网侧能量的流失。为了减小死区效应产生的影响,列出误差计算公式,求得总延时时间。另外,对定子电阻进行自适应辨识,增加所求延时时间精确度的同时可以运用到电机矢量控制中。经过补偿误差电压,提高了控制性能,降低了对控制系统的影响。结果表明所提补偿策略对电流波形、总谐波失真具有改善作用。
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| 关 键 词： | 感应电机 矢量控制 逆变器 死区效应 |
| 收稿时间： | 2019/4/26 0:00:00 |
DeadTime Compensation of Induction Motor Based on StatorResistance Adaptive Identification |
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| XU Xiang and CUI Ranran.DeadTime Compensation of Induction Motor Based on StatorResistance Adaptive Identification[J].Journal of Aerospace Power,2019,46(8):37-40, 46. |
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| Authors: | XU Xiang and CUI Ranran |
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| Institution: | Luoyang Mining Mechanical Engineering Design and Research Institute Co., Ltd., Luoyang 471039, China and Luoyang No. |
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| Abstract: | Due to deadtime effect, the output of voltage source inverter was nonnormalized and deformed. Deadtime effect affected the control accuracy of induction motor, especially for the speed sensorless vector control. It also caused the loss of power on the grid side. In order to reduce the influence of deadtime effect, the output voltage error calculation formula was listed to find out the total delay time. In addition, adaptive identification of stator resistance was carried out to increase the accuracy of delay time, which could apply to motor vector control as well. By compensating the error voltage, the control performance was improved and the influence on the control system was reduced. The results showed that the compensation strategy could improve the current waveform and total harmonic distortion. |
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| Keywords: | induction motor vector control inverter deadtime effect |
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