Miniature Fast Close SwitchGear for Series Convertors

Konferenz: PCIM Europe 2015 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
19.05.2015 - 20.05.2015 in Nürnberg, Deutschland

Tagungsband: PCIM Europe 2015

Seiten: 6Sprache: EnglischTyp: PDF

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Autoren:
Bonnici, Allen Carl (Methode Electronics, Malta)

Inhalt:
The utilization of high-voltage high-current series stacked convertors requires a miniature fast acting device capable of closing a continues current in excess of 1 to 2 KA with timing in the order of a few ms, around 11ms and less, in order to avoid the shutdown of the converter installation due to faults. The device in question is connected in parallel to each series element providing a shortcut in case of an element malfunction. Low internal resistance, high speed of actuation of the closing power contacts, robustness, high power density design and cost are paramount, this paper details some of the challenges and solutions that delivered the final product design, special focus is given to the low volume high power moving contact.