POWER CONVERSION SYSTEM FOR ELECTRIC VEHICLES
First Claim
1. A power conversion system for electric vehicles, the power conversion system comprising:
- a DC main power supply configured to supply a DC voltage;
a plurality of boosting circuits coupled to the DC main power supply and configured to perform a retrogression operation of boosting the DC voltage, each one of the plurality of boosting circuits comprising a corresponding one of a plurality of driving circuits;
an inverter circuit coupled to the plurality of boosting circuits and configured to convert the boosted DC voltage into an AC voltage;
at least one of a motor or generator coupled to the inverter circuit and configured to receive the AC voltage; and
a control circuit configured to output a control signal to the plurality of driving circuits and to stop an operation of a faulty boosting circuit of the plurality of boosting circuits when at least one of the plurality of boosting circuits is faulty, to set power control values depending on a number of remaining non-faulty boosting circuits of the plurality of boosting circuits, and to control the remaining non-faulty boosting circuits and the inverter circuit based on the power control values,wherein the inverter circuit and the plurality of boosting circuits are configured to perform a regeneration operation of supplying regeneration power to at least one of the DC main power supply, peripheral equipment, or a DC auxiliary power supply.
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Accused Products
Abstract
A power conversion system including a DC main power supply for supplying a DC voltage, boosting circuits for performing a retrogression operation of boosting the DC voltage and comprising driving circuits, an inverter circuit for converting the DC voltage into an AC voltage, a motor/generator for receiving the AC voltage, and a control circuit for outputting a control signal to the driving circuits and stopping an operation of a faulty boosting circuit of the boosting circuits when one of the boosting circuits is faulty, for setting power control values depending on a number of remaining non-faulty boosting circuits of the boosting circuits, and for controlling the remaining non-faulty boosting circuits and the inverter circuit based on the power control values, wherein the inverter circuit and the boosting circuits perform a regeneration operation of supplying regeneration power to the DC main power supply, peripheral equipment, and/or a DC auxiliary power supply.
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Citations
8 Claims
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1. A power conversion system for electric vehicles, the power conversion system comprising:
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a DC main power supply configured to supply a DC voltage; a plurality of boosting circuits coupled to the DC main power supply and configured to perform a retrogression operation of boosting the DC voltage, each one of the plurality of boosting circuits comprising a corresponding one of a plurality of driving circuits; an inverter circuit coupled to the plurality of boosting circuits and configured to convert the boosted DC voltage into an AC voltage; at least one of a motor or generator coupled to the inverter circuit and configured to receive the AC voltage; and a control circuit configured to output a control signal to the plurality of driving circuits and to stop an operation of a faulty boosting circuit of the plurality of boosting circuits when at least one of the plurality of boosting circuits is faulty, to set power control values depending on a number of remaining non-faulty boosting circuits of the plurality of boosting circuits, and to control the remaining non-faulty boosting circuits and the inverter circuit based on the power control values, wherein the inverter circuit and the plurality of boosting circuits are configured to perform a regeneration operation of supplying regeneration power to at least one of the DC main power supply, peripheral equipment, or a DC auxiliary power supply. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification