LOW VOLTAGE, TWO-LEVEL, SIX-PULSE INDUCTION MOTOR CONTROLLER DRIVING A MEDIUM-TO-HIGH VOLTAGE, THREE-OR-MORE-LEVEL AC DRIVE INVERTER BRIDGE

摘要

The present invention is a commercial controller designed to be used with a two-level inverter bridge AC drive, to a method and circuit that can be driven by the inverter bridge 3 level or higher. As the signal from a common induction motor controller or a two-level induction motor controller which is used in medium and high voltage applications, it is used to drive more than 12 or more switches in the three-level inverter bridge. Proper sequence and timing the switching of the three-level inverter bridge is at least in part on the flux and torque control device and the output of the voltage control apparatus for a six outputs of the pulse width modulator, or a second level controller. ;