Rotor position estimation apparatus and methods
US9774284B2 · kind B2 · utility
4Cited by
40References
12Claims
0Family size
Assignee
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Key dates
| Filing date | Feb 19, 2015 |
| Grant date | Sep 26, 2017 |
| Priority date | — |
| Expiry date | Feb 19, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P27/08
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Motor drives, methods and estimation systems are presented for estimating a rotor position of a motor load in which four sets of inverter output current samples obtained at four different sample times in a given inverter PWM cycle are converted into a corresponding stationary reference frame current value pairs, and the rotor position estimate is computed according to the stationary reference frame current values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.