Common-Mode Voltage-Reduction Method of 7-Phase BLDC Motor Control System-Reference-Cited by-同舟云学术

Common-Mode Voltage-Reduction Method of 7-Phase BLDC Motor Control System

Published:2023-02-21 Issue:5 Volume:16 Page:2097
ISSN:1996-1073
Container-title:Energies
language:en
Short-container-title:Energies

Author:

Son Yung-Deug¹^ORCID,Kim Dong-Youn²^ORCID,Kim Hyeong-Jin³^ORCID,Kim Jang-Mok⁴

Affiliation:

1. Department of Mechanical Facility Control Engineering, Korea University of Technology and Education, Cheonan 31253, Republic of Korea

2. Department of Research and Development, Hyowon Powertech Company, Busan 46241, Republic of Korea

3. Air Mobility Electric-Motor & Drive Research Team, Korea Electrotechnology Research Institute (KERI), Changwon 51543, Republic of Korea

4. Department of Electrical and Electronics Engineering, Pusan National University, Busan 46241, Republic of Korea

Abstract

This paper describes a method for reducing the common-mode voltage in a seven-phase brushless DC motor (BLDC) drive. The conventional interleaved method used in the three-phase inverter system is extended and applied. The proposed phase-phase interleaved method is studied to apply the six-phase excitation method for controlling the seven-phase BLDC. The six-phase switching functions related with modulation index (MI) and interleaved angle are obtained, and the average of the common-mode voltage is derived mathematically. The proposed control method reduces the common-mode voltage generation by applying the optimal interleaved angle according to MI. The proposed method is verified by experimental results.

Publisher

MDPI AG

Subject

Energy (miscellaneous),Energy Engineering and Power Technology,Renewable Energy, Sustainability and the Environment,Electrical and Electronic Engineering,Control and Optimization,Engineering (miscellaneous),Building and Construction

Link

https://www.mdpi.com/1996-1073/16/5/2097/pdf

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