Estimating motor drive torque and velocity
US11609137B2 · kind B2 · utility
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2References
18Claims
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Key dates
| Filing date | Mar 30, 2020 |
| Grant date | Mar 21, 2023 |
| Priority date | — |
| Expiry date | Aug 13, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P21/20
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
For estimating motor torque and velocity, a method estimates a velocity profile for a motor based on line-to-line voltages and phase currents for the motor. The velocity profile is estimated without a position input and a velocity input. The method further estimates a torque profile for the motor based on the line-to-line voltages, the phase currents, and a time interval of the velocity profile of motor velocities greater than a velocity threshold, and wherein the motor is operating over the time interval.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.