The 9th International Symposium on ADVANCED TOPICS IN ELECTRICAL ENGINEERING 2015

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Electronic Drive System of a Linear Magnetostrictive Motor Designed for Outer Space Applications

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 VPP and duty cycle kPWM = 30%. The Peltier ensemble provides the cooling of LMM in the absence of terrestrial gravity.

Author(s):

Lucian PISLARU-DANESCU    
National Institute for Research and Development in Electrical Engineering ICPE-CA, Bucharest, Department for Efficiency in Conversion and Usage of Energy
Romania

Alexandru MOREGA    
University POLITEHNICA of Bucharest, Faculty of Electrical Engineering
Romania

Mihaela MOREGA    
University POLITEHNICA of Bucharest, Faculty of Electrical Engineering
Romania

Rares CHIHAIA    
National Institute for Research and Development in Electrical Engineering ICPE-CA, Bucharest, Department for Efficiency in Conversion and Usage of Energy
Romania

Marius POPA    
National Institute for Research and Development in Electrical Engineering ICPE-CA, Bucharest, Department for Efficiency in Conversion and Usage of Energy
Romania

Lica FLORE    
Institute for Theoretical and Experimental Analysis of Aeronautical Structures STRAERO
Romania

 

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