Electricity: motive power systems – Induction motor systems – Primary circuit control
Patent
1998-01-06
2000-06-13
Ip, Paul
Electricity: motive power systems
Induction motor systems
Primary circuit control
318807, 318811, 395900, 701 57, H02P 534
Patent
active
060753382
ABSTRACT:
Driving of a three-phase motor includes controlling the slip of the motor by way of a fuzzy logic algorithm. The simplicity and precision of the fuzzy control of the slip permits dynamically optimizing the efficiency of a three-phase motor under any operating condition, and thereby minimizing power consumption. The control is carried out by knowing: the effective speed of the motor that represents the feedback value, and that may be provided by a common encoder (typically a dynamo or an optic device) keyed on the motor's spindled; the stator frequency imposed on the motor; the required speed; and, of course, the characteristic curve (frequency-torque) of the motor.
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Bourgeois Jean-Marie
Giacalone Biagio
Mazza Ettore
Russo Biagio
Galanthay Theodore E.
Ip Paul
SGS--Thomson Microelectronics S.r.l.
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