Robust BDCM sensorless control with position-dependent load torque

Chih Kai Huang*, Pei Yu Yu, Hung-Chi Chen

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

This paper presents the robust sensorless operation for brushless DC motors (BDCMs) loaded by the position-dependent load where the load torque is a function of the rotor angle (not electrical angle). Without any position sensor, the reliable position signals are generated from the motor terminal voltages through sensorless circuits. In order to reduce the speed variations especially in the low speed, an additional gain to adjust output voltage is included in the speed loop to compensate the repetitive position-dependent load. In first, the effects of positiondependent load on the speed variations and the commutation intervals are studied. It shows that we can estimate the position-dependent load from the commutation intervals. Then, we introduce the used sensorless scheme based on sensing terminal voltage. Finally, some simulated results have been given to demonstrate the robust performance of the proposed sensorless control for the position-dependent loads.

Original languageEnglish
Title of host publicationPESC 07 - IEEE 38th Annual Power Electronics Specialists Conference
Pages2739-2744
Number of pages6
DOIs
StatePublished - 1 Dec 2007
EventPESC 07 - IEEE 38th Annual Power Electronics Specialists Conference - Orlando, FL, United States
Duration: 17 Jun 200721 Jun 2007

Publication series

NamePESC Record - IEEE Annual Power Electronics Specialists Conference
ISSN (Print)0275-9306

Conference

ConferencePESC 07 - IEEE 38th Annual Power Electronics Specialists Conference
CountryUnited States
CityOrlando, FL
Period17/06/0721/06/07

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  • Cite this

    Huang, C. K., Yu, P. Y., & Chen, H-C. (2007). Robust BDCM sensorless control with position-dependent load torque. In PESC 07 - IEEE 38th Annual Power Electronics Specialists Conference (pp. 2739-2744). [4342451] (PESC Record - IEEE Annual Power Electronics Specialists Conference). https://doi.org/10.1109/PESC.2007.4342451