Electricity: motive power systems – Induction motor systems – Primary circuit control
Reexamination Certificate
2004-02-05
2009-06-09
Ro, Bentsu (Department: 2837)
Electricity: motive power systems
Induction motor systems
Primary circuit control
C318S162000, C318S808000, C318S812000
Reexamination Certificate
active
07545115
ABSTRACT:
The invention proposes a system for driving a compressor, comprising an induction motor (2) for driving the compressor (3), said induction motor including a squirrel cage rotor, and a controller (1) for controlling the induction motor, said controller comprising a memory for storing drive patterns for driving the induction motor, a first frequency generation means for generating a field frequency based on a field command and/or a second field generation means for generating a voltage frequency based on a voltage command, wherein a drive pattern in extracted from the memory based on the generated frequency or frequencies. Alternatively, the invention proposes a system for driving a compressor, comprising an induction motor (2) for driving the compressor (3), said induction motor including a squirrel cage rotor, and a controller (1) for controlling the induction motor, wherein the controller is adapted to distinguish between a steady state and a transient state of the induction motor.
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Barthelet Pierre
Devulder Nicolas
Greentree Chris
Lorant Cedric
Pouget Stanislaus
Honeywell International , Inc.
James Chris
Ro Bentsu
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