Station-building power-supply device and method of calculating regeneration determining voltage value
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United States of America Patent
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Jul 16, 2019
Grant Date -
Oct 26, 2017
app pub date -
Feb 19, 2015
filing date -
Feb 19, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
A station-building power-supply device includes: a detector that detects a ripple in an overhead line voltage and outputs information on the detected ripple and an overhead line voltage value; a determiner that compares the information with a threshold for determining whether a ripple is in the overhead line voltage, and outputs the overhead line voltage value obtained when a ripple is determined to be not in the overhead line voltage based on the comparison result; an estimator that estimates, based on the overhead line voltage value, a no-load voltage value of an overhead line in a no-load state; a controller that sets an additional value; and a calculator that adds the additional value to the no-load voltage value to calculate a regeneration determining voltage value for determining whether an electric vehicle performs regeneration, and outputs the regeneration determining voltage value to a circuit that utilizes energy generated by the regeneration.
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