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

Claim 13:
14. A non-transitory, computer-readable medium comprising instructions that when executed by a computer, cause said computer to control an electric machine (190) having a harmonic filter (150), the harmonic filter (150) comprising a second filter (142) and a filter output transformer (132), by:
ascertaining (410) a feedback variable (Idq), the feedback variable comprising an actual variable of a fundamental and of a harmonic of a specified frequency in a field-oriented system;
determining (414) a filter specification variable (FV) in a harmonic-oriented system;
filtering (415) the filter specification variable (FV) by means of the second filter (142);
back-transforming (416) the filtered filter specification variable (FV) by means of the filter output transformer (132) to form a harmonic variable (IdqHrmc) in the field-oriented system;
ascertaining (417) a filtered feedback variable without a harmonic component (IdqFunda) as the difference between the feedback variable (Idq) and the harmonic variable (IdqHrmc); and
energizing (480) at least one winding of the electric machine (190) as a function of the filtered feedback variable without a harmonic component (IdqFunda).