System and method for inductance based position encoding sensorless SRM drives
US7095205B2 · kind B2 · utility
5Cited by
21References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 29, 2001 |
| Grant date | Aug 22, 2006 |
| Priority date | — |
| Expiry date | Jul 24, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P25/089
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A controller (72) for a switched reluctance machine (20) implements a model of at least one active phase representing dynamic magnetic machine characteristics. The controller (72) determines machine control signals based on rotational position obtained by numerically solving the model with measured machine operating parameters. The model may be implemented as the sum of orthogonal functions relating active phase voltage and current with constants derived from phase inductance to obtain the rotor angle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.