Angle/frequency selector in an electric motor controller architecture
US9548686B2 · kind B2 · utility
7Cited by
3References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 22, 2014 |
| Grant date | Jan 17, 2017 |
| Priority date | — |
| Expiry date | Aug 28, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P21/18
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A motor controller architecture and method of operating the same. The motor controller includes a function for estimating the low speed operation of the motor, for example by evaluating the response to a periodic excitation signal injected into the control loop of the controller architecture. Control logic for controlling the motor at transitional speeds between low speed control and high speed (back emf) control is provided in some embodiments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.