Power converter for trasmitting power between networks

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 11309803
APP PUB NO 20200373848A1
SERIAL NO

16878732

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Abstract

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A converter circuitry between a first network, which may be either a poly-phase medium-voltage alternating current (AC) network, at least one polyphase low-voltage AC network or at least one direct-current (DC) network, and a second network, which may be either a polyphase medium-voltage AC network or a medium-voltage DC network, wherein the converter circuitry comprises at least one power bus and low-voltage power cells both at the first and at the second network side such that each power cell is connected to a power bus via a transformer. Each power bus is connected to a low-voltage power unit, which is able to supply pre-charging power via the power bus to all power cell intermediate DC-link filtering capacitors before the converter is started. The low-voltage power unit is also able to take care of a resistor braking in case the first network cannot take the power supplied by the load connected to the second network.

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Patent Owner(s)

  • VACON OY J

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Isaksson, Dan Durham, US 8 9
Komulainen, Risto Klaukkala, FI 22 122
Schroeder, Stefan Ismaning, DE 86 669
Strandberg, Stefan Vörå, FI 34 224

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