Advanced control strategy using a compensation of prestressing force in contactors

Issue title: Selected Papers from the 14th International Symposium on Applied Electromagnetics and Mechanics (ISEM 2009), Part II

Article type: Research Article

Authors: Gandanegara, Grace^a | Gualino, David^a | Ladas, Dimitrios^{a; *}

Affiliations: [a] Schneider Electric Industries, 37 Quai Paul Louis Merlin, 38050 Grenoble Cedex 9, France

Correspondence: [*] Corresponding author: Dimitrios Ladas, Tel.: +33 4 76 57 33 00, +33 4 76 39 14 23, +33 4 76 39 12 31; Fax: +33 4 76 57 32 62; E-mail: [email protected]

Abstract: In order to avoid the noise during the closure of contactors and to improve their electrical performances, we regulate the speed of the contactor mobile part movement. The prestressing force of the pole spring generates a perturbation on the speed when the moving contact touches the fixed contacts. By simulations, we see that a simple speed control is not sufficient. In this paper, we propose a feed-forward control included in the control strategy to compensate the prestressing force.

Keywords: Contactor, prestressing force, feed-forward action

DOI: 10.3233/JAE-2010-1277

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 33, no. 3-4, pp. 1487-1492, 2010