Power system, power converter controlling apparatus, and electric vehicle having the power system
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United States of America Patent
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May 16, 2017
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N/A
app pub date -
Jun 8, 2016
filing date -
Dec 20, 2013
priority date (Note) -
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Abstract
A controlling apparatus includes a storage unit for storing, for each sampling period, a combination of a primary frequency of connected induction motors and the amplitude of a voltage command value, and a gradient detection unit for calculating a value corresponding to an increase in the amplitude of the voltage command value divided by an increase in the primary frequency, and for outputting a failure signal upon determining, when a result of the division is less than a predetermined reference value, that the plurality of induction motors include at least one induction motor having a phase sequence that includes incorrect wiring with respect to the power converter.
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