Device and method for controlling a load flow in an alternating-voltage network
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United States of America Patent
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Jun 21, 2022
Grant Date -
Dec 24, 2020
app pub date -
Feb 28, 2018
filing date -
Feb 28, 2018
priority date (Note) -
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Abstract
A device for controlling a load flow in an alternating-voltage network includes first and second modular series connections of double-pole switching modules interconnected in a parallel circuit to be inserted in series into a phase line of the alternating-voltage network. At least one switching module of each connection has an energy store and semiconductor switches to be switched on and off. The semiconductor switches can be controlled in such a way that a switching module voltage can be generated at terminals of the switching module. The switching module voltage corresponds to a positive or negative storage voltage or a zero voltage. A control apparatus for controlling the switching modules is configured to generate an equalizing current between the modular series connections. A method for controlling a load flow by using the device is also provided.
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