Space vector modulation methods and structures for electric-motor control
US6653812B1 · kind B1 · utility
35Cited by
12References
42Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2002 |
| Grant date | Nov 25, 2003 |
| Priority date | — |
| Expiry date | Jan 31, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M7/53876
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Space vector modulation methods and structures are provided that reduce feedback errors which degrade motor control performance. In particular, the rotation of a reference voltage vector Vref is modified as it rotates with respect to voltage vectors that each represent a respective one of converter switch states in an electric-motor control system. One embodiment modifies the reference voltage vector Vref as it approaches various voltage vectors and another modifies the reference voltage vector Vref when its magnitude is less than a predetermined magnitude.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.