Voltage estimation feedback of overmodulated signal for an electrical vehicle
US7821224B2 · kind B2 · utility
3Cited by
6References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 10, 2008 |
| Grant date | Oct 26, 2010 |
| Priority date | — |
| Expiry date | Apr 10, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/72
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A voltage estimation system for motor control feedback is described. The system may include one or more control modules which may generate voltage commands. An overmodulation or “clipping” module receiving a voltage command can generate a clipped voltage. Rather than measuring directly, a voltage estimator may estimate the clipped voltage based on the duty cycle command to the inverter. This estimated voltage may then be used by a flux estimator to estimate a flux value. Other embodiments are described and claimed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.