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Actuators 2015, 4(4), 314-335; doi:10.3390/act4040314

Hybrid Multi-Physics Modeling of an Ultra-Fast Electro-Mechanical Actuator

1
ABB AB Corporate Research, Forskargränd 7, Västerås 72226, Sweden
2
Department of Electromagnetic Engineering, Royal Institute of Technology (KTH), Teknikringen 33, Stockholm SE-100 44, Sweden
3
Department of Mechanics, Royal Institute of Technology (KTH), Osquars backe 18, Stockholm SE-100 44, Sweden
These authors contributed equally to this work.
*
Author to whom correspondence should be addressed.
Academic Editor: Delbert Tesar
Received: 29 September 2015 / Revised: 20 November 2015 / Accepted: 24 November 2015 / Published: 8 December 2015
(This article belongs to the Special Issue Feature Papers)

Abstract

The challenges of an HVDC breaker are to generate impulsive forces in the order of hundreds of kilonewtons within fractions of a millisecond, to withstand the arising internal mechanical stresses and to transmit these forces via an electrically-insulating device to the contact system with minimum time delay. In this work, several models were developed with different levels of complexity, computation time and accuracy. Experiments were done with two mushroom-shaped armatures to validate the developed simulation models. It was concluded that although the electromagnetic force generation mechanism is highly sensitive to the mechanical response of the system, the developed first order hybrid model is able to predict the performance of the breaker with good accuracy. View Full-Text
Keywords: actuators, circuit breaker; electromagnetic launching; HVDC transmission; magneto-mechanical effects; mechanical power transmission; shock waves actuators, circuit breaker; electromagnetic launching; HVDC transmission; magneto-mechanical effects; mechanical power transmission; shock waves
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Bissal, A.; Eriksson, A.; Magnusson, J.; Engdahl, G. Hybrid Multi-Physics Modeling of an Ultra-Fast Electro-Mechanical Actuator. Actuators 2015, 4, 314-335.

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