METHOD FOR COMPENSATING FOR INTERFERENCE OF A WELDING CURRENT FROM ANOTHER WELDING CURRENT SOURCE

摘要

Method for compensating for a disturbing influence of a welding current provided by a welding current source (4) for welding a workpiece (3) by another welding current source (4 '), with the steps: (d) providing (SA) a compensation voltage (U sub comp /sub), which is calculated on the basis of a welding current profile provided by the other welding current source (4 '); (e) subtracting (SB) the compensation voltage (U sub Komp /sub) from a voltage measuring unit (8 ) the measurement voltage (U sub measurement /sub) measured by the welding current source (4) to determine an adjusted measurement voltage (U 'sub measurement /sub); and (f) regulating (SC) the welding current generated by the welding current source (4) as a function of the adjusted measurement voltage (U 'sub measurement /sub).