| 摘要 |
PCT No. PCT/DK96/00512 Sec. 371 Date Nov. 27, 1998 Sec. 102(e) Date Nov. 27, 1998 PCT Filed Dec. 5, 1996 PCT Pub. No. WO97/21269 PCT Pub. Date Jun. 12, 1997A 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 mR) of a rotor flux vector (imR) or of the induction motor (2) and/or in dependence on a delay time (Tdel). 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). |
