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

US9509234B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Franz Bauer · Herzogenaurach, DE
• Hubert Schierling · Erlangen, DE

Key dates

• Filing date: Jun 16, 2014
• Grant date: Nov 29, 2016
• Expiry date: Apr 16, 2035

Classification

• Technology area (CPC H): Electricity
• CPC primary: H02M7/53876
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

A drive controller and a method for operating a drive controller having a converter with a DC link circuit, includes 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.