A new power supply system for AC contactor ride-through

Author

Andrada, P. ; Navarro, G. ; Perat, J.I.

Author_Institution

Univ. Polytech. de Catalunya (UPC), Balaguer

fYear

2007

fDate

9-11 Oct. 2007

Firstpage

1

Lastpage

5

Abstract

This paper describes a new power supply system that enables an AC contactor to ride through power grid disturbances. The proposed system is implemented in an electronic device that is connected to the contactor coil. The electronic device consists of a power conversion and excitation circuit, a control circuit, an immunity circuit and a shutdown circuit. It does not disturb the contactor operation and can be adapted to almost all types of electrical contactor. Experimental tests have demonstrated the effectiveness of the proposed electronic device.

Keywords

contactors; power convertors; power grids; power supplies to apparatus; AC contactor ride-through; control circuit; electronic device; excitation circuit; immunity circuit; power conversion; power grid disturbances; power supply system; shutdown circuit; Circuits; Coils; Contacts; Power conversion; Power grids; Power quality; Power supplies; Power system stability; Switches; Voltage; AC Contactor; power quality; short interruptions; voltage sag;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Power Quality and Utilisation, 2007. EPQU 2007. 9th International Conference on

Conference_Location

Barcelona

Print_ISBN

978-84-690-9441-9

Electronic_ISBN

978-84-690-9441-9

Type

conf

DOI

10.1109/EPQU.2007.4424228

Filename

4424228