Closed-loop controller for eliminating the contact bounce in DC core contactors
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Cita com:
hdl:2117/10667
Tipus de documentArticle
Data publicació2010-09
Condicions d'accésAccés obert
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continguts d'aquesta obra estan subjectes a la llicència de Creative Commons
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Reconeixement-NoComercial-SenseObraDerivada 3.0 Espanya
Abstract
The undesirable phenomenon of the contact bounce
causes severe erosion of the contacts and, as a consequence, their
electrical life and reliability are greatly reduced. On the other
hand, the bounce of the armature can provoke re-opening of the
contacts, even when they have already been closed. This paper
deals with the elimination of the bounce in both contacts and
armature of a commercial dc core contactor. This is achieved
by means of a current closed-loop controller, which only uses
as input the current and voltage of the contactor’s magnetizing
coil. The logic control has been implemented in a low cost
microcontroller. Moreover, the board control can be fed by either
dc or ac, and either in 50 Hz or 60 Hz so as to extend its
applicability. A set of data is obtained from the measurement
of the position and velocity of the movable parts for different
operating voltages, and the dynamic behavior of the contactor is
discussed.
CitacióGarcia, A. [et al.]. Closed-loop controller for eliminating the contact bounce in DC core contactors. "IEEE transactions on components and packaging technologies", Setembre 2010, vol. 33, núm. 3, p. 535-543.
ISSN1521-3331
Versió de l'editorhttp://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=5491102
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