SEMICONDUCTOR POWER CONVERSION APPARATUS AND OUTPUT CURRENT CONTROL METHOD
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United States of America Patent
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Nov 24, 2016
app pub date -
Jan 21, 2014
filing date -
Jan 21, 2014
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Abstract
Provided is a semiconductor power conversion apparatus that includes: a semiconductor power converter that performs power conversion by using switching elements and supplies power to a load; a converter-voltage command calculation unit that outputs a voltage command value Vref that controls the semiconductor power converter; a voltage control unit that superimposes a second voltage command value on the voltage command value Vref to generate a voltage command value Vref2; a PWM-signal generation unit that generates a gate signal for controlling driving of the switching elements based on the voltage command value Vref2 and outputs the gate signal; and a bypass unit that is connected to the semiconductor power converter in parallel with the load and branches a current of a frequency of the second voltage command value off from an output current Iout that is output from the semiconductor power converter to the load.
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