Method for controlling rotation rate of electric motor
US9018875B2 · kind B2 · utility
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14Claims
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Key dates
| Filing date | Mar 13, 2013 |
| Grant date | Apr 28, 2015 |
| Priority date | — |
| Expiry date | Aug 21, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P21/0021
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for controlling a rotation rate of an electric motor includes the s following steps: determining if an absolute value of a difference between an objective rotation rate of the electric motor and an actual rotation rate of the electric motor is greater than or equal to a predetermined value, and if yes, compensating a q axis current of the electric motor to adjust the rotation rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.