Rotating machine control command method, servocontrol system for implementing said method, rotating machine provided with a system of this kind
US5907228A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 5, 1997 |
| Grant date | May 25, 1999 |
| Priority date | — |
| Expiry date | Jun 5, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P21/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.