Power converting apparatus generating a carrier having a waveform in which an absolute value of a slope is constant with respect to time, based on a value for internally dividing amplitude of the waveform into first and second values
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United States of America Patent
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Dec 16, 2014
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N/A
app pub date -
Oct 21, 2008
filing date -
Oct 24, 2007
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Abstract
A power converting apparatus generates a carrier having a waveform in which an absolute value of a slope is constant with respect to time, based on a value for internally dividing amplitude of the waveform into first and second values. Commutation of a converter is performed when the carrier takes a reference. Adoption is allowed of a zero voltage vector as a switching mode of an inverter in a period in which the carrier takes a first command value to a second command value. A value for internally dividing a value from the reference to a maximum value of the carrier at a ratio between a third value and a fourth value is the first command value. A value for internally dividing a value from a minimum value of the carrier to the reference at a ratio between the third value and the fourth value is the second command value.
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