无位置传感器方波和正弦波驱动永磁电机对比

微特电机 ›› 2020, Vol. 48 ›› Issue (12): 6-10.

无位置传感器方波和正弦波驱动永磁电机对比

黄其^1,2, 武文皓¹, 席唯², 郭航城²

1.西北工业大学自动化学院,西安710072;
2.贵州航天林泉电机有限公司,贵阳550081

收稿日期:2020-06-19 出版日期:2020-12-28 发布日期:2020-12-23
作者简介:黄其(1986—),男,硕士,工程师,研究方向为微特电机电磁设计、驱动控制、工艺管控和测试。
基金资助:
贵阳市高新技术产业支持项目( GXCX-2017-012)

Comparison of Position Sensorless Permanent Magnet Motor Driven by Square Wave and Sine Wave

HUANG Qi^1,2, WU Wen-hao¹, XI Wei², GUO Hang-cheng²

1. School of Automation,Northwestern Polytechnical University,Xi'an 710072,China;
2. Guizhou CASIC Linquan Motor Co., Ltd.,Guiyang 550081,China

Received:2020-06-19 Online:2020-12-28 Published:2020-12-23

摘要/Abstract

摘要： 介绍了永磁电机两种驱动方式的无位置传感器控制原理,方波驱动根据反电动势过零点判定换相位置;正弦波驱动采用滑模观测器估算转子位置。介绍两种驱动方式的控制电路结构。采用相同的逆变电路、相同的开关频率和相同的扇叶负载,对两种驱动方式的控制器效率、噪声、电磁干扰性进行对比实验。结果表明,两种驱动方式的效率非常接近,正弦波驱动的电机的噪声和传导电磁干扰频稍低,但控制算法复杂,控制芯片成本较高。

关键词: 永磁电机, 无位置传感器, 开关频率, 效率, 电磁干扰

Abstract: The sensorless control principle of permanent magnet motor was introduced in two driving modes, square wave drive determined the commutation position according to the zero point of inverse potential, sinusoidal wave drive used a sliding mode observer to estimate the rotor position.The control circuit structure of two driving modes was introduced. By using the same inverter circuit, the same switching frequency and the same fan blade load, the controller efficiency, noise and electromagnetic interference of the two driving modes were compared.The results show that the efficiency and electromagnetic interference spectrum of the two driving modes are very similar, the sinusoidal drive motor has slightly lower noise, but the control algorithm is complex, and the cost of the control chip is relatively high.

Key words: permanent magnet motor, position sensorless, switching frequency, efficiency, electromagnetic interference

中图分类号:

TM351

黄其, 武文皓, 席唯, 郭航城. 无位置传感器方波和正弦波驱动永磁电机对比[J]. 微特电机, 2020, 48(12): 6-10.

HUANG Qi, WU Wen-hao, XI Wei, GUO Hang-cheng. Comparison of Position Sensorless Permanent Magnet Motor Driven by Square Wave and Sine Wave[J]. Small & Special Electrical Machines, 2020, 48(12): 6-10.

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