Gain adjustment to improve torque linearity in a field weakening region
US8228016B2 · kind B2 · utility
5Cited by
15References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 27, 2009 |
| Grant date | Jul 24, 2012 |
| Priority date | — |
| Expiry date | Oct 28, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/64
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Systems and methods are disclosed to improve torque linearity of an electric machine when operating in a field-weakening region. The systems and methods adjust the q-axis and the d-axis components of the stator current commands of the electric machine using a flux weakening control loop and a torque linearity control loop such that torque linearity is maintained when the machine operates in a field weakening region of operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.