Honeywell International Inc.

Alain Wesquet

Kevin John Stalsberg

Pierre Barthelet

Nicolas Devulder

Cedric Lorant

Stanislaus Pouget

Chris Greentree

The invention proposes a system for driving a compressor, comprising an induction motor () for driving the compressor (), said induction motor including a squirrel cage rotor, and a controller () 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 () for driving the compressor (), said induction motor including a squirrel cage rotor, and a controller () 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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Thaon-les-Vosges, France

Alain Wesquet