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

Actuators

Ara Bissal²  Anders Eriksson¹  Jesper Magnusson³  Göran Engdahl³ 

[1] Department of Mechanics, Royal Institute of Technology (KTH), Osquars backe 18, Stockholm SE-100 44, Sweden; E-Mail:;ABB AB Corporate Research, Forskargränd 7, Västerås 72226, Sweden;Department of Electromagnetic Engineering, Royal Institute of Technology (KTH), Teknikringen 33, Stockholm SE-100 44, Sweden; E-Mails:

关键词: actuators;    circuit breaker;    electromagnetic launching;    HVDC transmission;    magneto-mechanical effects;    mechanical power transmission;    shock waves;   

DOI  :  10.3390/act4040314

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.