Thermal Analysis of Interior Permanent-Magnet Synchronous Motor by Electromagnetic Field-Thermal Linked Analysis

被引：8

作者：

Lee, Sang-Taek ^{[2
,3
]}

Kim, Hee-Jun ^{[2
]}

Cho, Ju-hee

Joo, Daesuk ^{[1
]}

Kim, Dae-kyong ^{[4
]}

机构：

[1] Pukyong Natl Univ, Dept Elect Engn, Pusan, South Korea

[2] Hanyang Univ, Dept Elect Elect Control & Instrumentat Engn, Seoul 133791, South Korea

[3] Korea Elect Technol Inst, Digital Convers Ctr, Kwangju, South Korea

[4] Sunchon Natl Univ, Dept Elect Control Engn, Sunchon, South Korea

来源：

JOURNAL OF ELECTRICAL ENGINEERING & TECHNOLOGY | 2012年 / 7卷 / 06期

关键词：

Thermal analysis; Analytical models; Numerical models; Permanent-magnet motors; ELECTRICAL MACHINES; INDUCTION; MODEL;

D O I：

10.5370/JEET.2012.7.6.905

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper reports an investigation of pulse width modulation (PWM) techniques for two- phase brushless DC (BLDC) motors fed by a two-phase eight-switch inverter in a fan application. The three-phase BLDC motor is widely applied in industry; however, a lower-cost two-phase BLDC motor and drive circuit has been greatly in demand in recent years. In this paper, we introduce a mathematical model of the two-phase BLDC motor with sinusoidal back electromotive forces (EMFs) based on traditional three-phase BLDC motors. To simplify the drive algorithm and speed up its application, we analyze the principle of block commutation for a two-phase BLDC motor drive in the 180-electrical-degree conduction mode, and we further propose five PWM schemes to improve the commutation performance of the two-phase BLDC drive. The effectiveness of the proposed PWM methods is verified through experiments.

引用

页码：905 / 910

页数：6

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