Feedforward current control method of DC servomotor using table for software servo system

Shigeki Iida, Shinichi Yuta

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

A feedforward current control method is presented. This method is based on the software compensator to select the proper PWM ratio and driving mode at a certain reference current and motor speed for the PWM switching method to control the motor current. Therefore, the motor current was controlled by completely digitalized circuits. The main feature of the suggested method is the use of a 2-dimensional table prepared beforehand and includes the value of a suitable PWM ratio and driving mode. This method does not require extending the control period because of the small amount of the calculation time required by the dc motor software servo. According to experimental results, we found that the proposed feedforward method is efficient in controlling the motor current and has a compact hardware system.

Original languageEnglish
Pages (from-to)122-131
Number of pages10
JournalElectrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi)
Volume109
Issue number4
Publication statusPublished - 1989 Jul
Externally publishedYes

Fingerprint

Servomotors
Feedforward control
Servomechanisms
Electric current control
Pulse width modulation
Hardware
Networks (circuits)

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Feedforward current control method of DC servomotor using table for software servo system. / Iida, Shigeki; Yuta, Shinichi.

In: Electrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi), Vol. 109, No. 4, 07.1989, p. 122-131.

Research output: Contribution to journalArticle

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