Computer simulation of short-circuiting transfer welding under waveform control on inverter power source-中国期刊网

摘要 Asimulationmodelisintroducedaboutthenon-linearityprocessofshort-circuitingtransferinCO2arcweldingfordisplayingtheinteractionbetweentheinverterpowersourceandweldingarcunderwaveformcontrol.Inthesimulationmodel,thefeedbacksignalsofcurrentandvoltagearetakenrespectivelyatthedifferentphaseinashortcircuitperiodictimeandappliedtothePWM(pulsewidthmodulation)moduleinamodelofinverterpowersourcetocontroltheoutputofpowersource.ThesimulationoperationaboutthedynamicprocessofCO2short-circuitingtransferweldingisimplementedonthefoundedsimulationmodelwithapeakarccurrentof400Aandapeakvoltageof35V,producingthedynamicarcwaveformswhichcanembodytheeffectofinverterharmonicwave.Thesimulatingwaveformsareclosetothatofweldingexperiments.

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Computer simulation of short-circuiting transfer welding under waveform control on inverter power source

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Computer simulation of short-circuiting transfer welding under waveform control on inverter power source

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