INTEGRATED INDUCTION STARTER/GENERATOR SYSTEM WITH HYBRID CONTROL FOR HIGH SPEED GENERATION AND IDLE SPEED SMOOTHING

摘要

The present invention includes an induction motor and a system for controlling the induction motor including a battery providing a DC voltage and an inverter coupled to the induction motor and the battery, wherein the inverter is adapted to drive the induction motor from the battery. A motor controller is adapted to calculate a flux current and a slip frequency in response to an induction motor speed. The motor controller is further adapted to operate in one of a current control mode or a slip control mode. The motor controller is adapted to cause the slip frequency to increase by a slip decremental in a transition phase from the current control mode to the slip control mode, and further adapted to cause the slip frequency to increase by a slip incremental in a transition phase from the slip control mode to the current control mode.