Patent ID: 9509234
Filing Date: 2016-11-29
CPC Classification: H02M,H02P

Claim Text:
1. A method for operating a drive control device having a converter with a DC link circuit, including: measuring during operation phase currents generated by the converter, forming from the measured phase currents a current vector in a first coordinate system, rotating, with a first transformation angle and with a first rate of change, the current vector into a second coordinate system to generate a resulting current vector, supplying the resulting current vector to a regulator to generate a resulting voltage vector at an output of the regulator, rotating, with the first transformation angle or with a second transformation angle rotating at the first rate of change, the resulting voltage vector back into the first coordinate system to generate a resulting back-transformed voltage vector, and using the resulting back-transformed voltage vector as an influencing variable in addition to U/f control or vector regulation for controlling the converter.