Electricity: motive power systems – Induction motor systems – Primary circuit control
Patent
1995-06-30
1997-09-02
Sircus, Brian
Electricity: motive power systems
Induction motor systems
Primary circuit control
318811, G05B 1302
Patent
active
056636261
ABSTRACT:
The present invention relates to an applied-voltage fuzzy control process for induction motors including the following steps: measuring a speed error by comparing the current speed of an electric motor with a reference speed; generating the derivative of this speed error; measuring a power error by comparing the power supplied to the motor with a reference power; applying a fuzzy control to the speed error, to the derivative of the speed error, and to the power error so as to generate the values of a drive voltage and a power supply pulse that are suitable to drive the electric motor. The fuzzy control is divided into two sections: a first one for motor speed control and a second one for motor power control.
REFERENCES:
patent: 3936226 (1976-02-01), Harner et al.
patent: 5272428 (1993-12-01), Spiegel et al.
patent: 5476430 (1995-12-01), Lee et al.
European Search Report from European Patent Application No. 94830327.6, filed Jul. 1, 1994.
IEEE International Conference On Fuzzy Systems, Aug. 3, 1992, San Diego USA pp. 843-850, J. Cleland & AL. "Fuzzy Logic Control Of AC Induction Motors" .
D'Angelo Giuseppe
Lo Presti Matteo
Poluzzi Rinaldo
Consorzio per la Ricerca sulla Microelettronica nel Mezzogiorno
Morris James H.
SGS-Thomson Microelectronics S.r.
Sircus Brian
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