Method and device for shutting down a drive with a matrix...

Details Method and device for shutting down a drive with a matrix... Method and device for shutting down a drive with a matrix...

2007-11-27

2007-11-27

Leykin, Rita (Department: 2837)

Electricity: electrical systems and devices

Safety and protection of systems and devices

Motor protective condition responsive circuits

C361S001000, C361S088000, C361S092000, C307S130000, C307S031000, C307S112000, C340S654000, C318S801000

Reexamination Certificate

active

10762755

ABSTRACT:
A method and a device for shutting down a drive during a power outage are disclosed. The method and device include a matrix converter, several commutation capacitors on the power line side, a switch unit on the power line side and a resistor unit. During a power outage, the matrix converter is immediately disconnected from the power supply, and the resistor unit is connected to the input terminals of the matrix converter in such a way that the amplitude of a voltage applied to the resistor unit equals the amplitude of an actual capacitor voltage space vector, and the speed setpoint is set to zero. This enables a drive with a matrix converter to be shut down during a power outage by way of a pulsed resistor.

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