Rotating Electric Machine for Electric Vehicle, Drive Control Device and Insulation Diagnosis Method
First Claim
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1. A rotating electric machine for an electric vehicle, installed in a vehicle and driven by an inverter power source, comprising:
- a partial discharge measuring device that measures partial discharges occurring in insulated areas between windings, between phases and between the rotating electric machine and a ground.
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Abstract
A rotating electric machine for an electric vehicle, installed in a vehicle and driven by an inverter power source, includes: a partial discharge measuring device that measures partial discharges occurring in insulated areas between windings, between phases and between the rotating electric machine and a ground.
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Citations
19 Claims
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1. A rotating electric machine for an electric vehicle, installed in a vehicle and driven by an inverter power source, comprising:
a partial discharge measuring device that measures partial discharges occurring in insulated areas between windings, between phases and between the rotating electric machine and a ground. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. An insulation diagnosis method adopted in conjunction with a rotating electric machine for an electric vehicle, comprising:
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measuring, via a sensor, a partial discharge occurring in an insulated area of the rotating electric machine for an electric vehicle, which is installed in a vehicle and driven with an inverter power source, the insulating area being between windings or between phases at the rotating electric machine or between the rotating electric machine and a ground; extracting a partial discharge signal from an output signal provided from the sensor; detecting a partial discharge inception voltage based upon the extracted partial discharge signal; and executing insulation diagnosis for the rotating electric machine for an electric vehicle based upon a change occurring in the partial discharge inception voltage over time.
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Specification