DEVICES AND METHODS FOR IMPROVING A GRID SYNCHRONIZATION OF UNIDIRECTIONAL POWER CONVERTERS
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United States of America Patent
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Jun 29, 2023
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Mar 3, 2023
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Sep 4, 2020
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Abstract
Example unity power factor converter, (UPFC) operating methods and apparatus are described. In one example, the UPFC comprises a closed-loop control for regulation of an input current from a power grid in accordance with a reference variable for the input current. The UPFC is configured to determine amplitudes of frequency components of the input current, and establish a phase angle of the reference variable in dependence of a phase angle of a fundamental frequency component of an input voltage from the power grid and of the amplitudes of the frequency components.
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