ACTIVE BOOST POWER CONVERTER FOR SINGLE-PHASE SRM
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United States of America Patent
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Issued Date -
Mar 24, 2011
app pub date -
Sep 16, 2010
filing date -
Sep 21, 2009
priority date (Note) -
Abandoned
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Abstract
Disclosed is an active boost power converter for driving a single-phase SRM, capable of rapidly establishing excitation current in the excitation mode and reducing tail current and negative torque in the demagnetization mode under the high-speed operation of the SRM. The active boost power converter includes a boost module and a converter module connected to the boost module. The boost module includes first and second capacitors, first and second diodes and a switch device turned on/off to connect the first and second capacitors to each other in series or parallel. The switch device includes an insulated gate bipolar transistor (IGBT). The power converter is operated with first and second input modes and first and second output modes. Voltage of the first capacitor is equal to dc-link voltage and first and second capacitors are controlled to be operated in series or parallel by simply controlling the IGBT.
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