System and method for variable DC bus voltage coupled to inverters

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12184217
APP PUB NO 20220302851A1
SERIAL NO

17806606

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Abstract

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A voltage command estimator is configured to estimate a minimum required variable DC bus voltage based on the first direct-axis current/voltage command, the first quadrature-axis current/voltage command, the second direct-axis current/voltage command, and the second quadrature-axis current/voltage command for a respective time interval. The voltage command estimator is configured to provide the estimated minimum required variable DC bus voltage to a voltage regulator to adjust the observed voltage level of the variable DC voltage bus to the estimated minimum required variable DC bus voltage to maintain the operation, as commanded by the voltage/current commands, of the first electric machine under the first variable load and the second electric machine under the second variable load at the time interval.

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Patent Owner(s)

Patent OwnerAddress
DEERE & COMPANYONE JOHN DEERE PLACE MOLINE IL 61265

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Li, Dan Fargo, US 393 4398
Wu, Long Fargo, US 65 441
Zhu, Guangqi Menomonee Falls, US 5 4

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