Load alignment assistance during startup of synchronous grid
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United States of America Patent
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Apr 14, 2020
Grant Date -
Feb 8, 2018
app pub date -
Dec 1, 2016
filing date -
Aug 4, 2016
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Abstract
Methods and systems for load alignment assistance are provided. An alignment current may be provided with a partial power converter through an n-phase supply line to a synchronous alternating current (AC) motor during a startup of a synchronous AC grid. The synchronous AC motor may receive polyphase AC power through the n-phase supply line from the synchronous AC grid during the startup. The partial power converter may be powered by a power source isolated from the synchronous AC grid. The alignment current may be controlled such that the alignment current causes a rotor of the synchronous AC motor to align with a rotor of a generator that powers the synchronous AC grid.
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