The invention relates to a method to control power output of a doubly-fed induction machine to a grid including the steps of measuring grid voltage and grid current in a three phase coordinate system, transforming grid voltage and grid current into a stator frame coordinate system, decomposing the grid voltage and g...

The invention relates to a device for controlling a double-fed asynchronous machine (4), preferably for a power plant, in particular for a wind or water power plant, comprising an indirect converter (6) which is connected on the rotor side to the double-fed asynchronous machine (4), the indirect converter (6) compri...