Motor torque control method and apparatus
US5334923A · kind A · utility
130Cited by
19References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 27, 1992 |
| Grant date | Aug 2, 1994 |
| Priority date | — |
| Expiry date | Mar 27, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P21/18
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for controlling torque by correcting slip gain error in an operating induction motor is provided. This is accomplished by measuring the amplitude and position of a flux in the motor such as rotor flux. Rotor flux position and amplitude can be estimated from the air gap flux. The slip gain can then be corrected in a single step or a few steps to provide a deadbeat control.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.