Overmodulation systems and methods for induction motor control
US6844701B2 · kind B2 · utility
9Cited by
9References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 15, 2003 |
| Grant date | Jan 18, 2005 |
| Priority date | — |
| Expiry date | Jan 15, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P23/0004
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Systems and methods for controlling an induction motor including detecting a field weakening operation state of the motor, wherein the field weakening operation state is detected when a flux current, Id, in the motor is reduced to a predetermined fraction of its normal, non-voltage limited value. The systems and methods also including an overmodulation operation state of the motor before said field weakening operation state is detected and enabling the overmodulation operation state of the motor after said field weakening operation state is detected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.