Analysis of Parameters Influence on the Characteristics of Thomson Coil Type Actuator of Arc Eliminator Using Adaptive Segmentation Equivalent Circuit Method

Li, Wei;Jeong, Young-Woo;Yoon, Hee-Sung;Koh, Chang-Seop

  • Received : 2009.06.02
  • Accepted : 2010.03.09
  • Published : 2010.06.01


A Thomson coil type actuator is applied as the driving unit in an arc eliminator system. To eliminate the arc efficiently, the speed of the actuator is required as fast as possible with certain limit of the exciting current. Therefore, the dynamic characteristics of the Thomson coil type actuator should be analyzed in an effective way. In this paper, a novel solving technique has been developed based on the equivalent circuit model which is set up by dividing the conducting plate into multi segments. To guarantee the calculation accuracy and improve the calculation efficiency, an adaptive refinement algorithm is suggested based on the field continues condition. The proposed method has been verified by the FEM calculation and experiment. The influence of circuit and plate parameters to the performance of the actuator is also investigated, from which a reasonable set of parameters can be found.


Thomson coil type actuator;Arc Eliminator;Adaptive segmentation;Equivalent circuit model


  1. Toshie Takeuchi, Kenichi Koyama and Mitsuru Tsukima, "Electromagnetic Analysis Coupled with Motion for High-Speed Circuit Breakers of Eddy Current Repulsion Using the Tableau Approach," Electrical Engineering in Japan, Vol. 152, No. 4, pp. 8-16, 2005.
  2. Seung-Myen Lee, Se-Hee Lee, Hong-Soon Choi and Il-Han Park, "Reduced Modeling of Eddy Current-Driven Electromechanical System Using Conductor Segmentation and Circuit Parameters Extracted by FEA," IEEE Trans. on Magn., Vol. 41, No. 5, pp. 1448-1451, May 2005.
  3. Se-Hee Lee, In-Gu Kwak, Hong-Song Choi, Seung-Myen Lee, Il-Han Park and Won-Kyu Moon, "Fast solving technique for mechanical dynamic characteristic in electromagnetic motional system by electromechanical state equation including extracted circuit parameter," IEEE Trans. on applied superconductivity, Vol. 14, No. 2, pp. 1926-1929, June 2004.
  4. Fawzi TH, Burke PE, The accurate computation of self and mutual inductances of circular coils. IEEE Trans Power Apparatus Syst., Vol. 97, No. 2, pp. 464-468, March 1978.

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