System for controlling a synchronous electric motor
US9525368B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 6, 2013 |
| Grant date | Dec 20, 2016 |
| Priority date | — |
| Expiry date | Aug 30, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P21/24
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A control system included in a speed selector connected by output phases to a synchronous electric motor, the synchronous electric motor being controlled according to a control law implemented by the speed selector. A first speed of the synchronous electric motor is determined by a first speed estimator. A second speed estimator is used to determine a second speed of the synchronous electric motor. The system includes a signal generator module configured to apply, to the output phases, voltages taking account of a non-constant current signal. The second speed estimator is configured to recover the current response on the output phases, to deduce therefrom the second speed of the synchronous electric motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.