Method for controlling a converter, apparatus and system

Abstract

Methods for controlling a converter and corresponding apparatus and system are provided. The converter is configured to be connected to a rotor of a doubly-fed induction generator for feeding electrical power into an electrical grid, the converter having a machine-side inverter, a grid-side inverter, and a DC voltage intermediate circuit including a protection element for dissipating power from the DC voltage intermediate circuit. The method includes obtaining information representative of power supplied by the generator to the electrical grid exceeding a target power value beyond a predetermined threshold; and controlling the converter, in response to obtaining the information, such that the grid-side inverter supplies power to the protection element so as to dissipate power from the DC voltage intermediate circuit.

Dependencies are inferred from the claim text.