Mid-voltage variable-frequency driving system and total harmonic distortion compensation control method
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United States of America Patent
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Jan 5, 2016
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Mar 28, 2013
app pub date -
Mar 27, 2012
filing date -
Sep 23, 2011
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Abstract
A mid-voltage variable-frequency driving system and a total harmonic distortion compensation control method are provided in this invention. The mid-voltage variable-frequency driving system includes a total harmonic distortion compensation unit. The total harmonic distortion compensation unit is used to perform an optimal adjustment on a reactive component reference value of a grid-side phase current, such that a harmonic component of the grid-side phase current may be reduced and a power factor of a three-phase switch-mode rectifier module within the mid-voltage variable-frequency driving system may be maintained.
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