Patent ID: 11955910
Assignee: ROBERT BOSCH GMBH
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 10:
11. The device (300) as claimed in claim 10,
comprising a harmonic controller (100),
the harmonic controller comprising an input transformer (110), a controller (120) and an output transformer (130),
wherein the device is designed to
transform (420) the filtered feedback variable without a fundamental component (IdqWoFunda) by means of the input transformer (110) to form a DC feedback variable (IHrmc) in a harmonic-oriented system;
ascertain (430) a control deviation as the difference between a specifiable DC reference variable (IHrmc*) and the DC feedback variable (IHrmc) in the harmonic-oriented system;
ascertain (440) a DC manipulated variable (UHrmc*) by means of the controller as a function of the control deviation;
back-transform (450) the DC manipulated variable (UHrmc*) by means of the output transformer to form a manipulated variable (UdqHrmc*) in the field-oriented system; and
superimpose (460) the fundamental DC manipulated variable with the manipulated variable (UdqHrmc*),
wherein, in the step of back-transforming (470) by means of the fundamental output transformer (230) to form a fundamental manipulated variable (Uabc*), the output value of the superimposition (460) of the fundamental DC manipulated variable with the manipulated variable (UdqHrmc*) is back-transformed to form the fundamental manipulated variable (Uabc*).