| 摘要 |
PCT No. PCT/FI97/00090 Sec. 371 Date Aug. 5, 1998 Sec. 102(e) Date Aug. 5, 1998 PCT Filed Feb. 12, 1997 PCT Pub. No. WO97/30510 PCT Pub. Date Aug. 21, 1997The invention relates to an inverter arrangement for simultaneous control of a stator flux and a torque of an electric machine (M). In the invention, the inverter of the inverter arrangement is controlled on the basis of a stator voltage reference (usref) defined on the basis of the error variables (Terr, PSI err) of the torque and the stator flux; on the basis of the stator voltage reference, in turn, are defined reference values for the phase voltages (uaref, ubref, ucref) of the stator voltage. The phase voltages (ua, ub, uc) of the stator voltage supplied to the electric machine (M) are controlled by a feedback voltage controller (VAC) to correspond to the defined reference values (uaref, ubref, ucref) of the phase voltages. |
