Process for controlling a rotating machine, a servocontrol system for implementing said method and a rotating machine provided with a system of this kind
US6087801A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 5, 1998 |
| Grant date | Jul 11, 2000 |
| Priority date | — |
| Expiry date | Feb 5, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M7/53875
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In a process for controlling a rotating machine having n phases powered by a voltage inverter defining m.sup.n states of the stator phase voltage vector the electromagnetic torque .GAMMA. and the stator flux .vertline..phi..sub.s .vertline. of the machine are servocontrolled. A calculator calculates a succession of n states of the phase voltage vector to move the torque .GAMMA. and the flux .vertline..phi..sub.s .vertline. towards the set points .GAMMA..sub.ref, .vertline..phi..sub.s .vertline..sub.ref. On each sampling, the calculator calculates the remaining application time of the current state and the updated application times of the future states of the phase vector. Asynchronously with the sampling times and the calculation times, the calculator sends SPmLL switch control signals to switch from the current state to the next state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.