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首页> 外文期刊>Science Discovery >Permanent Magnet Synchronous Motor Direct Torque Control Based on Stator Resistance Online Estimation
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Permanent Magnet Synchronous Motor Direct Torque Control Based on Stator Resistance Online Estimation

机译：基于定子电阻在线估计的永磁同步电动机直接转矩控制

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摘要

Permanent magnet synchronous motor direct torque control system is characterized by its fast, automatic control and so on. Based on the actual value and reference value of the motor control system, this article analysis the effect of the stator resistance variation on the performance of the system. A method to track stator resistance variation is proposed according to the effect of stator resistance deviation on stator flux and current vector. Based on the optimal reference value of the stator current vector, the stator resistance value is estimated on-line by using the angle between the electromagnetic torque and the stator flux; and the simulation studies results using Matlab/Simulink shows that the control method is very effective to improve the low-speed performance of the system, reduced torque ripple and improve system robustness.
机译：永磁同步电动机直接转矩控制系统的特点是其快速，自动控制等优点。基于电机控制系统的实际值和参考值，本文分析了定子电阻变化对系统性能的影响。根据定子电阻偏差对定子磁链和电流矢量的影响，提出了一种跟踪定子电阻变化的方法。根据定子电流矢量的最佳参考值，利用电磁转矩和定子磁通之间的角度在线估算定子电阻值; Matlab / Simulink的仿真研究结果表明，该控制方法对于改善系统的低速性能，减小转矩脉动和提高系统的鲁棒性非常有效。

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