A novel starting method for BLDC motors without the position sensors

被引：13

作者：

Asaei, Behzad

Rostami, Alireza ^{[1
]}

机构：

[1] Univ Tehran, Sch Elect & Comp Engn, Fac Engn, Tehran, Iran

来源：

ENERGY CONVERSION AND MANAGEMENT | 2009年 / 50卷 / 02期

关键词：

Brushless dc (BLDC) motor; Hard disk drive (HDD); Saturation; Sensorless; Starting torque;

D O I：

10.1016/j.enconman.2008.09.020

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

This paper presents a novel method to estimate the rotor position of a brushless dc (BLDC) motor at standstill. Moreover, a method for startup and acceleration of the motor up to a certain speed is introduced. The principle of the estimation method is based on the variation of the BLDC motor current in the magnetic axis due to the magnetic saturation of the stator core. An advantage of this method is that the maximum estimated error of the initial rotor position is 6 degrees. Therefore, the motor starting torque is increased significantly. However, to implement this method, a current sensor at the dc link of the inverter is needed. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：337 / 343

页数：7

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