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Nonlinear adaptive controller design for velocity control of a DC motor driven by a DC-DC buck converter using backstepping approach

T. K. Roy*, M. F. Pervej, F. K. Tumpa, L. C. Paul

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

Abstract

In this paper, a nonlinear adaptive controller is proposed to control the velocity of DC motors driven by DC-DC buck converters. The proposed controller is designed recursively based on the Lyapunov theory by considering the load torque of the DC motor is unknown. This unknown parameter is estimated through the adaptation law and the stability of the whole system is ensured based on the control Lyapunov function (CLF). Another main feature of the proposed control scheme is that it overcomes the over-parameterization problems of unknown parameter which generally emerges in some conformist adaptive methods. At last, the usefulness of the proposed control scheme is verified through the simulation results and performances of the designed controller are compared with an existing proportional-integral (PI) controller. Simulations results demonstrate the superiority of the proposed control scheme over an existing PI controller in term of settling time.

Original languageEnglish
Title of host publicationProceedings of 2nd International Conference on Electrical, Computer and Telecommunication Engineering , ICECTE 2016
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Number of pages4
ISBN (Electronic)9781509057856, 9781509057832
ISBN (Print)9781509057863
DOIs
Publication statusPublished - 2016
Externally publishedYes
Event2nd International Conference on Electrical, Computer and Telecommunication Engineering, ICECTE 2016 - Rajshahi, Bangladesh
Duration: 8 Dec 201610 Dec 2016

Other

Other2nd International Conference on Electrical, Computer and Telecommunication Engineering, ICECTE 2016
Country/TerritoryBangladesh
CityRajshahi
Period8/12/1610/12/16

Keywords

  • adaptive backstepping controller
  • control Lyapunov function
  • DC-DC buck converter
  • DC motor

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