具有转矩和速度控制的永磁同步电机驱动器的性能分析

2015 22nd International Conference Mixed Design of Integrated Circuits & Systems (MIXDES) Pub Date : 2015-06-25 DOI:10.1109/MIXDES.2015.7208586

T. Rudnicki, R. Czerwinski, D. Polok, A. Sikora

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引用次数: 12

摘要

介绍了一种永磁同步电动机转矩调速驱动系统的性能分析。永磁同步电动机需要正弦定子电流来产生恒定的转矩。本文介绍了dq轴模型中电机运行数学分析的组成部分。该数学模型为基于DSP处理器和IGBT电源模块的驱动设计提供了灵感。测量系统由一个装有逆变器和编码器的控制单元、PMSM驱动器(500W;5海里;800转)，一个扭矩测量装置和一个在发电机模式下工作的电机。性能分析在两个控制区间进行。如果定子绕组产生的退磁分量削弱了永磁体的激励，则可以使永磁同步电机的转速超过额定转速。然而，它会导致电机效率的降低。所进行的实验表明，在第二个控制间隔，它是有可能增加约30%的电机速度相比，名义转速(超速)。

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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Performance analysis of a PMSM drive with torque and speed control

The paper presents performance analysis of a permanent magnet synchronous motor (PMSM) drive with torque and speed control. The PMSM motor requires sinusoidal stator currents to produce constant torque. The paper presents constituents for the mathematical analysis of the motor operation within the dq-axis model. The mathematical model serves as inspiration for development of a drive design based on the DSP processor and IGBT power module. The measurement system consists of a control unit equipped with an inverter and an encoder, the PMSM drive (500W; 5Nm; 800 rpm), a torque measuring device and a motor that work in the generator mode. The performance analysis has been performed in two control intervals. It is possible to operate the PMSM with the speed that exceeds the rated rpm if the permanent-magnet excitation is weakened by a demagnetising field component produced by the stator winding. However, it leads to a decrease of the motor efficiency. The conducted experiments have shown, that in the second control interval it is possible to increase the motor speed by about 30% as compared to the nominal rpm (overspeed).

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2015 22nd International Conference Mixed Design of Integrated Circuits & Systems (MIXDES)

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