Variable-frequency control device used for shield construction cuttingwheel drive and control method thereof

The invention provides a variable-frequency control device used for a construction cuttingwheel drive and a control method of the control device; wherein the shield construction cuttingwheel is electrically connected with the variable-frequency control device used for the shield construction cutting...

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Bibliographic Details
Main Authors HUANG SHENG, CHEN LIUFENG
Format Patent
LanguageChinese
English
Published 15.06.2011
Subjects
EARTH DRILLING
FIXED CONSTRUCTIONS
GALLERIES
LARGE UNDERGROUND CHAMBERS
MINING
SHAFTS
TUNNELS
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Summary:The invention provides a variable-frequency control device used for a construction cuttingwheel drive and a control method of the control device; wherein the shield construction cuttingwheel is electrically connected with the variable-frequency control device used for the shield construction cuttingwheel drive; the variable-frequency control device used for the shield construction cuttingwheel drive comprises a PLC automatic control equipment and a variable-frequency device connected with the PLC automatic control equipment in a communication mode; wherein the variable-frequency device comprises a rectifier and a plurality of vector control inverters; the plurality of vector control inverters are electrically connected with the shield construction cuttingwheel by a plurality of motors. Inaddition, by controlling the variable-frequency control device, accurate control of torque and speed of the cuttingwheel can be realized; a mode of variable-frequency starting can reduce the influence of impact current genera
Bibliography:Application Number: CN2009154901