Systems and methods for load harmonic suppression
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United States of America Patent
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May 15, 2018
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app pub date -
Dec 23, 2013
filing date -
Dec 23, 2013
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Abstract
An uninterruptable power supply (UPS) is provided. The UPS includes a first input constructed to receive input power from a first power source, a second input constructed to receive input power from a second power source, an output constructed to provide output alternating current (AC) power derived from at least one of the first power source and the second power source, an inverter coupled to the first input, the second input, and the output and constructed to generate the output AC power, and a controller coupled to the inverter. The controller is configured to identify one or more harmonics in the output AC power, generate an inverter reference signal, and modulate the inverter reference signal to reduce harmonic distortion contributed by the one or more harmonics.
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