PROPULSION CONTROLLER AND METHOD OF CONTROLLING FILTER CAPACITOR VOLTAGE
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United States of America Patent
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N/A
Issued Date -
Aug 15, 2024
app pub date -
Jul 12, 2021
filing date -
Jul 12, 2021
priority date (Note) -
Published
status (Latency Note)
Importance
Abstract
A propulsion controller includes a controller that performs mode switching control and power consumption control, on the basis of a filter capacitor voltage and a main motor speed. The mode switching control switches between an asynchronous mode and a synchronous mode. The power consumption control causes power consumption resistor of a brake chopper circuit to consume regenerative power generated when a main motor operates as a generator. The controller controls an operating point, depending on the position of which the asynchronous mode and the synchronous mode are switched, to a desired position by changing a target value of the filter capacitor voltage controlled by the power consumption control.
First Claim
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