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Commutation processes in a Zero Voltage Switching Hybrid DC Switch
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| Author(s) |
H. Polman; J.A. Ferreira; M. Kaanders; B. Evenblij; P. Van Gelder |
| Abstract |
In a DC switch arcing is prevented by combining a semiconductor switch with the mechanical switch.
A 600V/6kA switch has been designed and constructed. The hybrid switch is bi-directional and uses
Zero Voltage Switching. In principle the ZVS topology consists of three parallel branches. The first
contains the mechanical switch, the second a commutation semiconductor and the third an energy
absorber. In this paper the commutation process in the hybrid switch is analysed. Three commutation
intervals can be distinguished. Modelling and simulations of these three commutation intervals are
presented. A prototype switch has been designed and built. The modelling and simulations are
verified by experiments conducted on the prototype switch. The prototype shows substantially
reduced arcing. The calculations and the simulations are in good agreement with the experimental
results. |
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| Filename: | EPE2001 - PP01034 - Ferreira.pdf |
| Filesize: | 926 KB |
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| Type |
Members Only |
| Date |
Last modified 2004-03-10 by System |
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