Method and apparatus for pre-charge control of VSI
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United States of America Patent
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Aug 14, 2001
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N/A
app pub date -
Sep 27, 2000
filing date -
Sep 27, 2000
priority date (Note) -
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Abstract
A method and apparatus for automatically selecting and employing different DC link pre-charge levels dependent upon different sources providing power to a power conditioning system wherein the different sources are characterized by different source inductances, the apparatus including a source control that selects a first pre-charge level when a utility supply provides power to the system and selects a relatively lower pre-charge level when a generator supply provides power to the system thereby reducing the possibility of inverter disablement due to DC link voltage dips.
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