Method for the field-oriented control of an induction motor
US6037742A · kind A · utility
77Cited by
12References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 27, 1998 |
| Grant date | Mar 14, 2000 |
| Priority date | — |
| Expiry date | Nov 27, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P21/141
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for the field-oriented control of an induction motor (2) by means of a frequency converter (1) is disclosed, in which method a transformation angle (.delta.) is determined by estimation and is corrected in dependence on a rotational speed (.omega..sub.mR) of a rotor flux vector (i.sub.mR) or of the induction motor (2) and/or in dependence on a delay time (T.sub.del). In this connection it is desirable to improve the control behavior. To that end, the transformation angle (.delta.) is corrected a second time to compensate for a phase shift in the frequency converter (1).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.