Rotating machine control command method, servocontrol system for

Details Rotating machine control command method, servocontrol system for Rotating machine control command method, servocontrol system for

1997-06-05

1999-05-25

Ip, Paul

Electricity: motive power systems

Positional servo systems

Program- or pattern-controlled systems

31856812, 318801, 3644743, H02P 540

Patent

active

059072288

ABSTRACT:
In a method of regulating a rotating machine with n phases fed with alternating current by a voltage inverter including n SPmLL defining m.sup.n states V.sub.i (i.epsilon.{1, . . , m.sup.n }) of the stator phase voltage vector V.sub.s, the machine having an electromagnetic torque T.sub.em and a stator flux .phi..sub.S slaved to a commanded electromagnetic torque T.sub.emref and stator flux .phi..sub.Sref, for transient conditions in which the electromagnetic torque T.sub.em and/or the stator flux .phi..sub.S are respectively far away from the commanded electromagnetic torque T.sub.emref and/or stator flux .phi..sub.Sref, from all possible states V.sub.i of the stator phase voltage vector V.sub.s, the one is chosen which is optimal for causing the torque T.sub.em and the stator flux .phi..sub.S to converge towards the commanded torque T.sub.emref and stator flux .phi..sub.Sref ; and switching of the SPmLL corresponding to the chosen state of the phase voltage vector V.sub.s is commanded.

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P. Brandsetter et al, "Control Methods for Permanent Magnet Synchronous Motor Drives with High Dynamic Performance", EPE '95: 6th European Conference on Power Electronics and Applications, Sevilla, Sep. 19-21, 1995, vol. 3, Sep. 19, 1995, European Power Electronics and Drives Association, pp. 3.805-3.810.
M. P. Mazmierkowski et al, "Improved Direct Torque and Flux Vector Control of PWM Inverter-Fed Induction Motor Drives", IEEE Transactions on Industrial Electronics, vol. 42, No. 4, Aug. 1, 1995, pp. 344-350.
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