CONVERTER AND METHOD FOR DETERMINING A CURRENT SPACE VECTOR

摘要

The invention relates to a converter and to a method for determining a current space vector for a converter that can be operated with pulse-width modulation, comprising signaling electronics and a power output stage that comprises circuit breakers disposed in three half bridges, each of which comprises a lower and an upper branch. Means for detecting the respective currents are disposed either in all three lower or in all three upper branches of the half bridges. At least one associated current sampled value is determined within a time segment by using two of the three means provided for detecting the currents. A current space vector is formed from the current sampled values determined by said pair of means, or the current values are formed in the output branches, in particular for use in a control and/or regulating method. Said pair of means is selected differently according to the output voltage space vector.