Method for controlling torque in permanent magnet motor drives

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United States of America Patent

PATENT NO 9722522
SERIAL NO

14676514

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Abstract

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A method for limiting the torque of a permanent magnet AC motor includes a torque limit controller. The torque limit controller at least in part bases the torque limit on a selected direct voltage limit. The selected direct voltage limit may be used in combination with other torque limit conditions to generate the torque demand for the AC motor.

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Patent Owner(s)

Patent OwnerAddress
CANRIG DRILLING TECHNOLOGY LTDTEXAS USA TEXAS

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Pace, Gary Cypress, US 14 191

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