Method and system for controlling angular speeds of motors in speed sensorless induction motors
US9985563B2 · kind B2 · utility
0Cited by
12References
16Claims
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Key dates
| Filing date | Jan 11, 2016 |
| Grant date | May 29, 2018 |
| Priority date | — |
| Expiry date | Jul 23, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P21/26
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Angular speed of a rotor of an induction motor without an encoder for rotor position and speed sensing is controlled by first sensing stator currents and voltages of the induction motor. A dynamic gain estimator is designed by applying a state transformation to a model of the induction motor. A states of the induction motor is estimated by applying the dynamic gain estimator to the currents and the voltages, and then the state is used to control the angular speed of the rotor of the induction motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.