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A Study on the Speed Control of a Blac Motor by Back-Emf Feedforward Compensation

Title
A Study on the Speed Control of a Blac Motor by Back-Emf Feedforward Compensation
Authors
Ban, Dong HoonHong, Jae SeungJin, Sung HoLee, Seonghun
DGIST Authors
Jin, Sung HoLee, Seonghun
Issue Date
2017-02
Citation
International Journal of Electrical and Electronics Engineering Research, 7(1), 69-76
Type
Article
Article Type
Article
ISSN
2249-6890
Abstract
A PI controller is used to control the speed of a motor, but the gain of the PI controller is limited according to the system. Thus, the PI controller alone cannot meet the control performance requirements of the motor. A method involving back-electromotive force (back-EMF) compensation can solve this problem. Here, a feedforward compensation method based on the speed is used to compensate for the back-EMF. However, it is difficult to measure speed in the extremely low speed range, so it is difficult to compensate the back-EMF. In addition, the rate of the back-EMF compensation is modified by adjusting the gain. This proposed method of the back-EMF compensation is proven by simulation and experiment. The root mean square (RMS) value for the speed error is measured when the back-EMF is compensated for, when the back-EMF is not compensated for and when the gain of the back-EMF compensation is adjusted. The study confirms that the proposed algorithm is superior in the RMS value of the speed error.
URI
http://hdl.handle.net/20.500.11750/6449
Publisher
Transstellar Journal Publications and Research Consultancy Private Limited (TJPRC)
Related Researcher
Files:
There are no files associated with this item.
Collection:
Convergence Research Center for Future Automotive Technology1. Journal Articles


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