Efficiency Comparison of Trapezoidal and Sinusoidal Method for Brushless DC Motor Drive

Mohd Arif Abu Hassan; Abdul Rahim Abdullah; Nurhazilina Bahari; Muhammad Ihsan Mohd Sabri

doi:10.4028/www.scientific.net/AMM.785.248

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 785Efficiency Comparison of Trapezoidal and...

Efficiency Comparison of Trapezoidal and Sinusoidal Method for Brushless DC Motor Drive

Abstract:

This paper compares overall efficiency of trapezoidal BLDC motor which is excited by trapezoidal drive and sinusoidal drive. The different characteristics and performance of trapezoidal Brushless DC (BLDC) motor is formed by driving methods. Sinusoidal drive that excites trapezoidal BLDC motor generates greater maximum torque than trapezoidal drive. However, with regard to high frequency loss caused by a pulse width modulation (PWM) carrier and switching loss, the trapezoidal drive has potential to achieve higher efficiency than the sinusoidal drive. Thus, these two drive methods excite trapezoidal BLDC motor are compared to study the efficiency performance. The motors drives are simulated by using MATLAB and their efficiency are measured. The results show that the trapezoidal BLDC motor with trapezoidal drive has higher efficiency compared to trapezoidal BLDC motor with sinusoidal drive.

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Periodical:

Applied Mechanics and Materials (Volume 785)

Pages:

248-252

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.785.248

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Online since:

August 2015

Authors:

Mohd Arif Abu Hassan*, Abdul Rahim Abdullah, Nurhazilina Bahari, Muhammad Ihsan Mohd Sabri

Keywords:

Brushless Dc Motor, Efficiency, Pulse Width Modulation, Sinusoidal Drive, Trapezoidal Back-Emf, Trapezoidal Drive

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