Hybrid PWM Control for Regulating the High-Speed Operation of BLDC Motors and Expanding the Current Sensing Range of DC-link Single-Shunt

This study developed a hybrid pulse width modulation (PWM) control method intended for use in a high-speed brushless dc (BLDC) motor drive system that uses DC-link single-shunt current measurement. The method is designed to regulate rapid operation and expand the current sensing range of the aforeme...

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Main Authors: Nam Huh, Hyung-Seok Park, Man Hyung Lee, Jang-Mok Kim
Format: Article
Language:English
Published: MDPI AG 2019-11-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/12/22/4347
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author Nam Huh
Hyung-Seok Park
Man Hyung Lee
Jang-Mok Kim
author_facet Nam Huh
Hyung-Seok Park
Man Hyung Lee
Jang-Mok Kim
author_sort Nam Huh
collection DOAJ
description This study developed a hybrid pulse width modulation (PWM) control method intended for use in a high-speed brushless dc (BLDC) motor drive system that uses DC-link single-shunt current measurement. The method is designed to regulate rapid operation and expand the current sensing range of the aforementioned system and measurement, respectively. The operating characteristics of most typical PWM methods for BLDC motors were analyzed, after which, a PWM approach suitable for high-speed operation was identified. On the basis of the selected approach, the measurable range of DC-link single-shunt current was examined mathematically to determine a PWM method that is advantageous for current sensing. The results of the two analyses were used as guidance in formulating the proposed hybrid PWM control algorithm. Finally, the PWM method put forward in this work was verified through experimentation.
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spelling doaj.art-95cb8fa92ad649c3883e68a51af30ec42022-12-22T04:09:48ZengMDPI AGEnergies1996-10732019-11-011222434710.3390/en12224347en12224347Hybrid PWM Control for Regulating the High-Speed Operation of BLDC Motors and Expanding the Current Sensing Range of DC-link Single-ShuntNam Huh0Hyung-Seok Park1Man Hyung Lee2Jang-Mok Kim3Graduate School of Mechanical Engineering, Pusan National University, Busan 46241, KoreaDepartment of Electrical Engineering, Pusan National University, Busan 46241, KoreaGraduate School of Mechanical Engineering, Pusan National University, Busan 46241, KoreaDepartment of Electrical Engineering, Pusan National University, Busan 46241, KoreaThis study developed a hybrid pulse width modulation (PWM) control method intended for use in a high-speed brushless dc (BLDC) motor drive system that uses DC-link single-shunt current measurement. The method is designed to regulate rapid operation and expand the current sensing range of the aforementioned system and measurement, respectively. The operating characteristics of most typical PWM methods for BLDC motors were analyzed, after which, a PWM approach suitable for high-speed operation was identified. On the basis of the selected approach, the measurable range of DC-link single-shunt current was examined mathematically to determine a PWM method that is advantageous for current sensing. The results of the two analyses were used as guidance in formulating the proposed hybrid PWM control algorithm. Finally, the PWM method put forward in this work was verified through experimentation.https://www.mdpi.com/1996-1073/12/22/4347high-speed bldc motorshybrid pwm methoddc-link currentsingle-shunt registersensing rangecurrent ripples
spellingShingle Nam Huh
Hyung-Seok Park
Man Hyung Lee
Jang-Mok Kim
Hybrid PWM Control for Regulating the High-Speed Operation of BLDC Motors and Expanding the Current Sensing Range of DC-link Single-Shunt
Energies
high-speed bldc motors
hybrid pwm method
dc-link current
single-shunt register
sensing range
current ripples
title Hybrid PWM Control for Regulating the High-Speed Operation of BLDC Motors and Expanding the Current Sensing Range of DC-link Single-Shunt
title_full Hybrid PWM Control for Regulating the High-Speed Operation of BLDC Motors and Expanding the Current Sensing Range of DC-link Single-Shunt
title_fullStr Hybrid PWM Control for Regulating the High-Speed Operation of BLDC Motors and Expanding the Current Sensing Range of DC-link Single-Shunt
title_full_unstemmed Hybrid PWM Control for Regulating the High-Speed Operation of BLDC Motors and Expanding the Current Sensing Range of DC-link Single-Shunt
title_short Hybrid PWM Control for Regulating the High-Speed Operation of BLDC Motors and Expanding the Current Sensing Range of DC-link Single-Shunt
title_sort hybrid pwm control for regulating the high speed operation of bldc motors and expanding the current sensing range of dc link single shunt
topic high-speed bldc motors
hybrid pwm method
dc-link current
single-shunt register
sensing range
current ripples
url https://www.mdpi.com/1996-1073/12/22/4347
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