Computationally-Efficient Thermal Analysis of a Low-Speed High-Thrust Linear Electric Actuator with a 3D Thermal Network Approach

Permanent-Magnet Synchronous Linear Motors (PMSLM) are more and more frequently used as all-electric direct-drive actuators in those applications where a force needs to be developed along a fixed direction. In this paper, an accurate 3D thermal model of a PMSLM is derived through a lumped-parameter network approach which exploits all the symmetries in the actuator structure to maximize the spatial density of nodes. Numerically-efficient techniques are then proposed to solve the thermal network analytically. Some experimental validations are finally presented based on the thermal testing of a laboratory prototype.



Titolo: Computationally-Efficient Thermal Analysis of a Low-Speed High-Thrust Linear Electric Actuator with a 3D Thermal Network Approach
Autori: 
TESSAROLO, ALBERTO
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Data di pubblicazione: 2015
Stato di pubblicazione: Pubblicato
Rivista: 
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS  
Abstract: Permanent-Magnet Synchronous Linear Motors (PMSLM) are more and more frequently used as all-electric direct-drive actuators in those applications where a force needs to be developed along a fixed direction. In this paper, an accurate 3D thermal model of a PMSLM is derived through a lumped-parameter network approach which exploits all the symmetries in the actuator structure to maximize the spatial density of nodes. Numerically-efficient techniques are then proposed to solve the thermal network analytically. Some experimental validations are finally presented based on the thermal testing of a laboratory prototype.
Handle: http://hdl.handle.net/11368/2829483
Digital Object Identifier (DOI): http://dx.doi.org/10.1109/TIE.2014.2341555
URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6861986&isnumber=4387790
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