Electronic drive system of a linear magnetostrictive motor designed for outer space applications

Author

Pislaru-Danescu, L. ; Morega, A.M. ; Morega, M. ; Chihaia, R. ; Popa, M. ; Flore, L.

Author_Institution

Nat. Inst. for R&D in Electr. Eng., ICPE-CA, Bucharest, Romania

fYear

2015

fDate

7-9 May 2015

Firstpage

225

Lastpage

230

Abstract

This paper presents the driving system of a linear magnetostrictive motor (LMM) that operates in a wide range of frequencies of up to 16 kHz, which is intended for space applications. Accordingly, the design and control of the LMM differs from the classical version, causing changes in electrical driving conception. The LMM drive has two units Pulse Width Modulators (PWM) for the control of the activation coil, the magnetic bias coil, and it is also provided with a power supply block. An ensemble of three series, connected Peltier elements is powered by a third PWM modulator with the following features: f = 24 kHz, U = 28 V_PP and duty cycle k_PWM = 30%. The Peltier ensemble provides the cooling of LMM in the absence of terrestrial gravity.

Keywords

Peltier effect; aerospace instrumentation; coils; linear motors; machine control; magnetostrictive devices; motor drives; LMM control; PWM; Peltier element; activation coil control; duty cycle; linear magnetostrictive motor electronic drive system; magnetic bias coil; outer space application; power supply block; pulse width modulator; terrestrial gravity; Integrated circuits; Magnetic cores; Magnetostriction; Oscillators; Pulse width modulation; Voltage control; Peltier coolers; electronic control; linear magnetostrictive motor;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Topics in Electrical Engineering (ATEE), 2015 9th International Symposium on

Conference_Location

Bucharest

Type

conf

DOI

10.1109/ATEE.2015.7133769

Filename

7133769