Experimental Validation of a Finite Element 2D Axial Thomson Coil Model with Inductance and Resistance Compensation

This paper assesses the accuracy of a transient 2D axissymmetric FE model of a Thomson coil actuator compared with experimental results. Sources of error in the coil representation are identified and the 2D model is compensated accordingly for improved accuracy. Experimental results validate the proposed approach and effects of armature bending in the predicted armature velocity are investigated. The analysis presented demonstrates that a 2D FE model with compensation can accurately predict a Thomson coil actuator dynamic behaviour, even when armature bending occurs.

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