Sensorless Control of a Novel Linear Magnetostrictive Motor Academic Article

abstract

• In this paper, the sensorless control of a novel linear magnetostrictive motor is presented. We developed this low-power linear magnetostrictive motor with local three-phase excitation. In response to a traveling magnetic field inside the Terfenol-D active element, it moves in the opposite direction with a peristaltic motion. It is observed that there is a direct relationship between the active element's position and the coils' inductances. To detect the inductance change, the coil's current response to a pulse voltage input is monitored. Then, a fundamental relationship between the coils' current-response pulsewidths and the active element's position is experimentally developed. Eventually, the closed-loop sensorless control of the linear magnetostrictive motor was successfully performed. The sensorless control demonstrated the position-estimation capability with a 1-mm maximum error. 2010 IEEE.

authors

• Kim, Won-Jong

published proceedings

• IEEE Transactions on Industry Applications

author list (cited authors)

• Sadighi, A., & Kim, W.

citation count

• 2

complete list of authors

• Sadighi, Ali||Kim, Won-Jong

publication date

• January 2011

publisher

• Institute of Electrical and Electronics Engineers (IEEE)  Publisher

keywords

• 40 Engineering
• 4008 Electrical Engineering
• 4009 Electronics, Sensors And Digital Hardware

Digital Object Identifier (DOI)

• 10.1109/tia.2010.2102732

start page

• 736

end page

• 743

volume

• 47

issue

• 2

URL

• http://dx.doi.org/10.1109/tia.2010.2102732