Abstract: Systems and methods for allocating reactive power production in a doubly-fed induction generator (DFIG) wind turbine system including a DFIG and a power converter including a line side converter and a rotor side converter are provided. A method can include obtaining a reactive power production requirement, obtaining one or more operating parameters for the DFIG and the line side converter, and determining a priority ratio based at least in part on the one or more operating parameters. The priority ratio can be a ratio of reactive power production between the DFIG and the line side converter. The method can further include controlling the DFIG and the line side converter based at least in part on the reactive power production requirement and the priority ratio such that the combined reactive power production from the DFIG and the line side converter meet the reactive power production requirement.

Abstract: Systems and methods for protecting a generator are provided. An example method can include receiving a signal indicative of a voltage associated with a stator. The method can include receiving a signal indicative of a nominal voltage associated with the stator. The method can include receiving a signal indicative of a monitoring state associated with the generator. The method can include receiving a signal indicative of a deadband range. The method can include determining a voltage ratio based at least in part on the voltage associated with the stator and the nominal voltage. The method can include determining an adjusted operating limit using a multiplier determined based at least in part on the voltage ratio. The method can include generating a power command to control operation of the generator based at least in part on the adjusted operating limit.

Abstract: Systems and methods for allocating reactive power production in a doubly-fed induction generator (DFIG) wind turbine system including a DFIG and a power converter including a line side converter and a rotor side converter are provided. A method can include obtaining a reactive power production requirement, obtaining one or more operating parameters for the DFIG and the line side converter, and determining a priority ratio based at least in part on the one or more operating parameters. The priority ratio can be a ratio of reactive power production between the DFIG and the line side converter. The method can further include controlling the DFIG and the line side converter based at least in part on the reactive power production requirement and the priority ratio such that the combined reactive power production from the DFIG and the line side converter meet the reactive power production requirement.

Abstract: Systems and methods for protecting a generator are provided. An example method can include receiving a signal indicative of a voltage associated with a stator. The method can include receiving a signal indicative of a nominal voltage associated with the stator. The method can include receiving a signal indicative of a monitoring state associated with the generator. The method can include receiving a signal indicative of a deadband range. The method can include determining a voltage ratio based at least in part on the voltage associated with the stator and the nominal voltage. The method can include determining an adjusted operating limit using a multiplier determined based at least in part on the voltage ratio. The method can include generating a power command to control operation of the generator based at least in part on the adjusted operating limit.