Patent ID: 6788014
Filing Date: 2004-09-07
Classification: H02P,Y10S

Abstract:
A drive control system for a multiphase motor powered by a power converter of a type including a multi-pulsed bridge circuit with a plurality of controllable converter valves which have an input side, and a plurality of electrically isolating devices in one-to-one correspondence with the controllable converter valves, said drive control system comprising:a control unit having an output side, wherein the input side of the converter valves is connected to the output side of the control unit via the electrically isolating devices; an armature short-circuit braking device connected to an input side of electrically isolating devices of one bridge side of the bridge circuit; and over voltage recognition device having a first input terminal which receives a signal corresponding to a limit value and a second input terminal which receives a signal corresponding to a determined actual input voltage of the power converter; and a trigger circuit having an output side which is connected to the armature short-circuit braking device, and an input side which is connected to an output side of the overvoltage recognition device and supplied with a signal for the armature short-circuit braking device.