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Determination of torque-speed-current characteristics of a brushless DC motor by utilizing back-EMF of non-energized phase
- Authors
- Jang, Gunhee; Yeom, Jai Hoon; Kim, MG
- Issue Date
- Mar-2007
- Publisher
- ELSEVIER
- Keywords
- back-EMF; BLDC motor; torque; speed; current
- Citation
- JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, v.310, no.2, pp.2790 - 2792
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
- Volume
- 310
- Number
- 2
- Start Page
- 2790
- End Page
- 2792
- ISSN
- 0304-8853
- Abstract
- This paper presents a method to determine the torque constant and the torque-speed-current characteristics of a brushless DC (BLDC) motor by utilizing back-EMF variation of nonenergized phase. It also develops a BLDC motor controller with a digital signal processor (DSP) to monitor its current, voltage and speed in real time. Torque-speed-current characteristics of a BLDCmotor are determined by using the proposed method and the developed controller. They are compared with the torque-speed-current characteristics measured by dynamometer experimentally. This research shows that the proposed method is an effective method to determine the torque constant and the torque-speed-current characteristics of the BLDCmotor without using dynamometer.
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Related Researcher
- Jang, Gun Hee
- COLLEGE OF ENGINEERING (SCHOOL OF MECHANICAL ENGINEERING)