Electricity: motive power systems – Induction motor systems – Primary circuit control
Reexamination Certificate
2005-07-11
2008-10-28
Ip, Paul (Department: 2837)
Electricity: motive power systems
Induction motor systems
Primary circuit control
C318S800000, C318S809000, C318S811000, C363S040000, C363S071000, C363S065000, C363S165000
Reexamination Certificate
active
07443129
ABSTRACT:
There is described a method for controlling a quenching device for a converter bridge with line regeneration, whereby the converter bridge controlled by a network-timed control circuit by ignition pulses is connected with its three inputs to the phases of a three-phase network and the two outputs of the bridge are connected to a direct-current motor which feeds, when operated as a generator, current back to the three-phase network via the bridge. The quenching device is controlled by a trigger unit which emits trigger pulses depending on the monitoring of electrical and temporary variables. The device has measuring values “direct output current” and/or “supply voltages” used to determine characteristic values which are compared with theoretical characteristic values. Depending on the result of said comparison, the quenching device is optionally activated.
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Biribauer Thomas
Hackl Franz
Hofmüller Wilfried
Pichorner Heinz
Ritschel Wilhelm
Ip Paul
Siemens Österreich
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