Position control of a LBDCM drive

C. M. Liaw*, T. C. Lin, Hung-Chi Chen, S. C. Chen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


In this paper, the dynamic model estimation and quantitative position control of a linear brushless DC motor (LBDCM) drive are studied. First, the inverter-fed LBDCM drive is established and its dynamic model is estimated from measurements. Then, according to the estimated model at nominal case, a two-degree-of-freedom controller (2DOFC) is designed to meet the prescribed tracking and load regulation position control responses. As the system parameter and operating condition changes occur, an output feedback linear model following controller (MFC) is added to reduce the effects of perturbations, and hence the performance degradation can be reduced. Finally, a ramp position command with suitable changing rate is generated to avoid the occurrence of velocity limitation, and thus the overshoot of position response due to large-step command change can be eliminated.

Original languageEnglish
Pages (from-to)1089-1109
Number of pages21
JournalElectric Power Components and Systems
Issue number12
StatePublished - 1 Dec 2001

Fingerprint Dive into the research topics of 'Position control of a LBDCM drive'. Together they form a unique fingerprint.

Cite this