Electricity: motive power systems – Induction motor systems – Primary circuit control
Patent
1998-02-05
2000-07-11
Nappi, Robert E.
Electricity: motive power systems
Induction motor systems
Primary circuit control
318805, 318807, 318808, 3185681, 318799, 3644743, H02P 764
Patent
active
060878010
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.
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Bethoux Olivier
Bornard Guy
Mahrez Camal Ait
Poullain Serge
Thomas Jean-Luc
Alcatel
Leykin Ritor
Nappi Robert E.
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