| 基于离散反电动势估计的永磁同步电机无速度传感器控制 |
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| 引用本文： | 刘淑琴,黄菊花,曹铭.基于离散反电动势估计的永磁同步电机无速度传感器控制[J].航空动力学报,2018,45(7):15-22. |
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| 作者姓名： | 刘淑琴 黄菊花 曹铭 |
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| 作者单位： | 南昌大学 机电学院,江西 南昌330031;江西师范大学 物理与通信电子学院,江西 南昌330022,南昌大学 机电学院,江西 南昌330031,南昌大学 机电学院,江西 南昌330031 |
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| 基金项目： | 江西省光电子与通信重点实验室基金项目(2014009) |
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| 摘 要： | 针对高速永磁同步电机(PMSM)的无速度传感器控制问题,提出了一种基于离散反电动势估计的PMSM无速度传感器控制策略。实施离散反电动势估计的设计有三点:首先,设计了离散dq电流观测器以消除反电动势估计中的电感交叉耦合效应;然后,设计了延迟补偿模型以补偿数模转换引起的电压误差,同时设计了较为精确的离散模型,以克服由数字实现导致的估计反电动势和实际反电动势之间的偏差;最后,开展了高速PMSM驱动试验,试验结果验证了所提出的高速PMSM无速度传感器控制方案的性能。
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| 关 键 词： | 永磁同步电机 反电动势估计 无速度传感器 驱动控制 |
Speed Sensorless Control of Permanent Magnet Synchronous MotorBased on Discrete EMF Estimation |
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| LIU Shuqin,HUANG Juhua and CAO Ming.Speed Sensorless Control of Permanent Magnet Synchronous MotorBased on Discrete EMF Estimation[J].Journal of Aerospace Power,2018,45(7):15-22. |
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| Authors: | LIU Shuqin HUANG Juhua and CAO Ming |
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| Institution: | School of Mechanical & Electrical Engineering, Nanchang University, Nanchang 330031, China;College of Physics and Communication Electronics, Jiangxi Normal University, Nanchang 330022, China,School of Mechanical & Electrical Engineering, Nanchang University, Nanchang 330031, China and School of Mechanical & Electrical Engineering, Nanchang University, Nanchang 330031, China |
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| Abstract: | Aiming at the problem of speed sensorless control of high speed permanent magnet synchronous motor (PMSM), a speed sensorless control strategy of PMSM based on discrete back electromotive force (EMF) estimation was presented. The discrete back EMF estimation was implemented with three design considerations. First, a discrete dq current observer was designed to eliminate the inductive crosscoupling effect in the backEMF estimation. Then, a delay compensation model was designed to compensate for the voltage error caused by digitaltoanalog conversion. A more accurate discrete model to overcome the deviation between the estimated back EMF and the actual back EMF caused by the digital implementation. Finally, the drive tests of high speed PMSM were carried out. The test results verified the performance of the proposed high speed sensorless speed control scheme of PMSM. |
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| Keywords: | permanent magnet synchronous motor back electromotive force estimation speed sensorless drive control |
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