Field oriented control of a motor with a single shunt
US8829846B2 · kind B2 · utility
1Cited by
7References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 16, 2011 |
| Grant date | Sep 9, 2014 |
| Priority date | — |
| Expiry date | May 13, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P21/22
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for driving a motor is provided. Pulse width modulation (PWM) signals are generated from a voltage signal and a commanded angle signal, which drives a motor with multiple phases. A motor current from a motor is measured with a single shunt and converted into a digital signal. Based on the digital signal and the commanded angle signal, direct-axis and quadrant-axis currents for the motor can be determined, and the voltage signal and the commanded angle signal can be adjusted based at least in part on the direct-axis and quadrant-axis currents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.