A DSP based instantaneous torque control strategy for interior permanent magnet synchronous motor drive with wide speed range and reduced torque ripples

IAS '96. Conference Record of the 1996 IEEE Industry Applications Conference Thirty-First IAS Annual Meeting Pub Date : 1996-10-06 DOI:10.1109/IAS.1996.557082

M.F. Rahman, L. Zhone, K. Lim

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引用次数: 13

Abstract

An instantaneous torque control (ITC) method for interior type permanent magnet synchronous motors (IPMSM) is presented. The control scheme is based on the mathematical model of the motor and is applicable to the constant torque and field weakening operations. The theme allows the motor to be driven with maximum torque per ampere characteristic below base speed and it maintains the maximum voltage limit of the motor under wide field weakening and the motor current limit under all conditions of operation accurately. The ITC scheme is also shown to be very effective in suppressing the cogging and ripple torques produced by such motors due to stator slotting and nonsinusoidal air gap flux distribution respectively. These torque profiles are obtained from test runs of the drive under ITC and are used to augment the torque reference of the drive. The control scheme has been verified by experiments on an IPMSM which has nonsinusoidal back EMF and very high cogging torque.

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基于DSP的大调速范围内永磁同步电机瞬时转矩控制策略

提出了一种内置式永磁同步电动机瞬时转矩控制方法。该控制方案基于电机的数学模型，适用于恒转矩和弱磁场工况。该主题允许电机以低于基本转速的最大转矩每安培特性驱动，并准确地保持电机在宽磁场减弱下的最大电压极限和所有运行条件下的电机电流极限。ITC方案在抑制由定子开槽引起的齿槽转矩和由非正弦气隙磁链分布引起的纹波转矩方面也非常有效。这些扭矩曲线是从在ITC下的驱动器测试运行中获得的，用于增加驱动器的扭矩参考。在具有非正弦反电动势和高齿槽转矩的永磁同步电动机上进行了实验验证。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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IAS '96. Conference Record of the 1996 IEEE Industry Applications Conference Thirty-First IAS Annual Meeting

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