Patent ID: 11949352
Assignee: WOBBEN PROPERTIES GMBH
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  F  Y | IPC F  H

Claim 0:
1. A method for controlling, using field-orientated closed-loop control, an active rectifier electrically connected to a stator of a generator of a wind turbine, the stator having a rotational axis about which the rotor is mounted, comprising:
determining a mechanical position of the rotor with respect to the stator;
predefining directed current (DC) components of rotor-fixed d- and q coordinates for at least one three-phase stator current;
determining an alternating current (AC) component for the q coordinate and/or the d coordinate at least based on the mechanical position of the rotor;
modulating and/or adding:
the determined AC component of the q coordinate to the predefined DC component of the q coordinate to obtain a q coordinate having DC and AC components, and/or
the determined AC component of the d coordinate to the predefined DC component of the d coordinate to obtain a d coordinate having DC and AC components, and
controlling the active rectifier at least based on the obtained q coordinate and/or the obtained d coordinate.