Method for determining a rotor frequency and/or a rotor angle of a rotor of a reluctance machine, control device, and drive assembly
US9935574B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 23, 2015 |
| Grant date | Apr 3, 2018 |
| Priority date | — |
| Expiry date | Oct 23, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P3/44
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for determining a rotor frequency and/or a rotor angle of a rotor of a reluctance machine, in particular without an amortisseur, is disclosed. The reluctance machine has a stator with a stator winding and the rotor has a magnetically anisotropic rotor core. The method includes applying a temporal sequence of voltage pulses to the stator winding, determining a sequential pulse response of a current flowing in the stator winding, the current being generated as a result of the voltage pulses and a flux being generated from the voltage pulses as a result of the magnetically anisotropic rotor core, and determining the rotor frequency and/or the rotor angle based on the measured sequential pulse response of the electric current by using an evaluating device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.