Method for operating a drive control device, facility with means for executing the method and drive control device with such a facility

A facility for operating a drive control device having a converter with a DC link circuit, including:

• a regulator having an input and an output,
• a first vector rotator connected upstream of the regulator and receiving in a first coordinate system a current vector formed from measured phase currents generated by the converter during operation, said first vector rotator configured to rotate the current vector in the first coordinate system into the second coordinate system with a first transformation angle with a first rate of change and supplying the rotated current vector to the input of the regulator, and
• a second vector rotator connected downstream of the regulator and receiving from the regulator a resulting voltage vector, said second vector rotator configured to rotate the resulting voltage vector back into the first coordinate system to generate a resulting back-transformed voltage vector,
• wherein the first transformation angle is identical to the second transformation angle or the second transformation angle rotates with the first rate of change of the first transformation angle.

A computer program embodied in a computer-readable non-transitory storage medium and including program code, which when loaded into a memory of a drive control device having a converter with a DC link circuit and executed on the drive control device, causes the drive control device to

• measure during operation phase currents generated by the converter,
• form from the measured phase currents a current vector in a first coordinate system,
• rotate, 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,
• supply the resulting current vector to a regulator to generate a resulting voltage vector at an output of the regulator,
• rotate, 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
• use the resulting back-transformed voltage vector as an influencing variable in addition to U/f control or vector regulation for controlling the converter.

A non-transitory computer-readable storage medium having stored thereon computer program code means which when loaded into a memory of a drive control device having a converter with a DC link circuit and executed on the drive control device, causes the drive control device to

• measure during operation phase currents generated by the converter,
• form from the measured phase currents a current vector in a first coordinate system,
• rotate, 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,
• supply the resulting current vector to a regulator to generate a resulting voltage vector at an output of the regulator,
• rotate, 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
• use the resulting back-transformed voltage vector as an influencing variable in addition to U/f control or vector regulation for controlling the converter.