Control of single-phase permanent magnet brushless dc drives for high-speed applications

Zhu, Z. Q.; Bentouati, S.; Howe, D.

doi:10.1049/cp:20000267

Cited by 29 publications

(8 citation statements)

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“…This increased current lagging will cause severe torque ripple, vibration, and noise. As a result, the optimal commutation angle is needed to improve the performance [18]. There are two important factors to be considered in terms of controlling a high-speed single-phase brushless DC motor.…”

Section: B Motor Drive Circuit Topologymentioning

confidence: 99%

“…There are two important factors to be considered in terms of controlling a high-speed single-phase brushless DC motor. The first factor is the current shape distortion and mismatch with back EMF due to the high switching frequency and winding inductance [18] and the second one is to optimize the shape of the output current [19]. For more accurate modeling and simulation, it was inevitable to take these two considerations into account when it comes to controlling the motor.…”

Section: B Motor Drive Circuit Topologymentioning

confidence: 99%

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GaN-based single phase brushless DC motor drive for high-speed applications

Lee

Han

Sarlioglu

2014

IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society

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It is a well-known fact that wide-bandgap (WBG) materials such as gallium nitride (GaN) and silicon carbide (SiC) have superior characteristics compared to silicon (Si) in power electronics and motor drive applications. Performance of a single-phase brushless high-speed DC motor can be improved by using GaN-based drive since it requires high frequency operation and low conduction and switching losses. This paper discusses the implementation of GaN devices to drive a single-phase brushless DC motor. Control strategies and simulation analysis are presented. Comparison is carried out between GaN-based and Sibased brushless DC motor drive systems and the potential benefits of GaN-based drive system are quantified from the efficiency and loss perspective.

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Section: B Motor Drive Circuit Topologymentioning

confidence: 99%

Section: B Motor Drive Circuit Topologymentioning

confidence: 99%

GaN-based single phase brushless DC motor drive for high-speed applications

Lee

Han

Sarlioglu

2014

IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society

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“…Another approach has been presented in [5], where the current profile with the adjusted dead zones was also considered to prevent single-phase motor from producing negative torque. This, however, would diminish the advantage of the motor considered here, in which, unlike in conventional single-phase motors, the electromagnetic torque does not reach zero during normal operation.…”

Section: Torque Evaluation From Circuit Modelmentioning

confidence: 99%

“…Several modifications to the magnetic circuit have been proposed in the literature to produce the starting torque in single-phase PM motors [4], [5]. The basis of these methods is to introduce a magnetic asymmetry on the stator periphery such as a nonuniform air-gap or uneven pole profile [5].…”

Section: Introductionmentioning

confidence: 99%

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Analysis of Torque Developed in Axial Flux, Single-Phase Brushless DC Motor With Salient-Pole Stator

Mendrela

Jagieła

2004

IEEE Trans. On Energy Conversion

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An analysis of the torque developed by a single-phase disc brushless permanent magnet motor with salient-pole stator is presented. The machine represents a new family of brushless disc motors with the starting torque issue appearing to be most challenging. To produce a starting torque, the permanent magnets on one of the rotor discs are distributed nonuniformly. However, this significantly distorts a shape of the cogging torque versus rotational angle characteristic which, in turn, affects a waveform of the overall torque. A three-dimensional (3-D) finite-element model is used for the purpose of determining of angular variations of the torque developed by the motor. To find how the torque varies with time, a model of the source-inverter-motor circuit is developed. A simulation study on an influence of the commutation angle on the electromagnetic torque is also a subject of this paper. The results obtained show that the motor performance can be improved by a proper selection of the current commutation angle to reach the maximum efficiency. The simulation results are in good agreement with measurements obtained from a prototype motor.

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