Abstract
A method for the field-oriented control of an induction motor by means of a frequency contverter is dislosed, in which method a transformation angle is determined by estimation and is corrected in dependence on a rotational speed of a rotor flux vector or of the induction motor and/or in dependence on a delay time. In this connection it is desirable to improve the control behavior. To that end, the transformation angle is corrected a second time to compensate for a phase shift in the frequency converter.
Originalsprog | Engelsk |
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Patentnummer | 6,037,742 |
Journaliseringsdato | 14/03/2000 |
Land/Område | USA |
Status | Udgivet - 2000 |