Improved Switching Strategy for a Single-Phase Brushless Direct Current Motor and its Impact on Motor Efficiency

Hannes Grübler; Stefan Leitner; Annette Muetze; Gerhard Schoener

doi:10.1109/IEMDC.2017.8002331

Improved Switching Strategy for a Single-Phase Brushless Direct Current Motor and its Impact on Motor Efficiency

Hannes Grübler, Stefan Leitner, Annette Muetze, Gerhard Schoener

Electric Drives and Machines Institute (4310)

Research output: Chapter in Book/Report/Conference proceeding › Conference paper › peer-review

Abstract

Advancing the turn-off angle of the phase current of brushless direct current (BLDC) motors is a common control practice to improve their behavior and efficiency (reduction of current peaks, copper losses, and breaking torques). This paper investigates a refined switching strategy for a single-phase BLDC motor with bifilar winding to increase the energy conversion efficiency of the system. In addition to advancing the phase current turn-off angle, the turn-on angle is delayed to improve the drive's performance and increase the efficiency even further. The focus is on sub-fractional horsepower single-phase BLDC motors with bifilar winding which, concerning this matter, have not drawn much attention in the literature yet. The findings of the paper show that the improved switching strategy can reduce current peaks, breaking torques, copper losses, and therefore increase efficiency.

Original language	English
Title of host publication	2017 IEEE International Electric Machines and Drives Conference, IEMDC 2017
Publisher	Institute of Electrical and Electronics Engineers
ISBN (Electronic)	9781509042814
DOIs	https://doi.org/10.1109/IEMDC.2017.8002331
Publication status	Published - 3 Aug 2017
Event	2017 IEEE International Electric Machines and Drives Conference, IEMDC 2017 - Miami, United States Duration: 21 May 2017 → 24 May 2017

Conference

Conference	2017 IEEE International Electric Machines and Drives Conference, IEMDC 2017
Country/Territory	United States
City	Miami
Period	21/05/17 → 24/05/17

Keywords

bifilar winding
BLDC
commutation angle
efficiency
sub-fractional horsepower

ASJC Scopus subject areas

Energy Engineering and Power Technology
Electrical and Electronic Engineering
Mechanical Engineering

Access to Document

10.1109/IEMDC.2017.8002331

Cite this

Improved Switching Strategy for a Single-Phase Brushless Direct Current Motor and its Impact on Motor Efficiency. / Grübler, Hannes; Leitner, Stefan; Muetze, Annette et al.
2017 IEEE International Electric Machines and Drives Conference, IEMDC 2017. Institute of Electrical and Electronics Engineers, 2017. 8002331.

Research output: Chapter in Book/Report/Conference proceeding › Conference paper › peer-review

Grübler, H, Leitner, S, Muetze, A & Schoener, G 2017, Improved Switching Strategy for a Single-Phase Brushless Direct Current Motor and its Impact on Motor Efficiency. in 2017 IEEE International Electric Machines and Drives Conference, IEMDC 2017., 8002331, Institute of Electrical and Electronics Engineers, 2017 IEEE International Electric Machines and Drives Conference, IEMDC 2017, Miami, United States, 21/05/17. https://doi.org/10.1109/IEMDC.2017.8002331

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abstract = "Advancing the turn-off angle of the phase current of brushless direct current (BLDC) motors is a common control practice to improve their behavior and efficiency (reduction of current peaks, copper losses, and breaking torques). This paper investigates a refined switching strategy for a single-phase BLDC motor with bifilar winding to increase the energy conversion efficiency of the system. In addition to advancing the phase current turn-off angle, the turn-on angle is delayed to improve the drive's performance and increase the efficiency even further. The focus is on sub-fractional horsepower single-phase BLDC motors with bifilar winding which, concerning this matter, have not drawn much attention in the literature yet. The findings of the paper show that the improved switching strategy can reduce current peaks, breaking torques, copper losses, and therefore increase efficiency.",

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Improved Switching Strategy for a Single-Phase Brushless Direct Current Motor and its Impact on Motor Efficiency

Abstract

Conference

Keywords

ASJC Scopus subject areas

Access to Document

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Activities

2017 IEEE International Electric Machines and Drives Conference, IEMDC 2017

Cite this