Position-sensorless motion control of DC motor

Yoshiyuki Kambara, Seiji Uozumi, Takahiro Nozaki, Kouhei Ohnishi

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


In this paper, a voltage disturbance observer (VDOB) and counter electromotive force estimation observer (CFOB) are proposed. A voltage disturbance is defined as the electrical disturbance of DC brushed motors. A VDOB estimates a voltage disturbance from a voltage reference and the measured current. Utilizing a VDOB, high-performance motion control is realized. A CFOB estimates the counter electromotive force from an estimated voltage disturbance. By estimating the angular velocity from the counter electromotive force, position-sensorless motion control is realized. Therefore, high-performance position-sensorless motion control of DC motors is realized by combining these observers. The validity is experimentally verified.

Original languageEnglish
Pages (from-to)205-211
Number of pages7
Journalieej transactions on industry applications
Issue number3
Publication statusPublished - 2015 Mar 1
Externally publishedYes


  • Counter electromotive force estimation
  • DC brushed motor
  • Disturbance observer
  • Motion control
  • Sensorless control

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering


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