General Electric Renovables Espana, S.l.

Prasun Mishra

Kapil Jha

Werner Gerhard Barton

Parag Rameshchandra Dharmadhikari

Pushkar Chandrakant Chaudhari

Sonam Acharya

A method for operating a power supply system connected to a grid, the power supply system including a rotor, a doubly-fed induction generator (DFIG), a power conversion assembly, and an active filter. The DFIG includes a generator rotor mechanically connected with the rotor and a generator stator. The power conversion assembly includes a rotor-side power converter. The active filter electrically connected with the generator stator via a stator bus and the rotor-side power converter electrically connected with the generator rotor via a rotor bus. Based on a rotor frequency of the generator rotor, the method determines an expected harmonic frequency for a stator current flowing on the stator bus. An amplitude of the stator current at the expected harmonic frequency is determined via a data set of stator current values. The method controls the active filter based on the amplitude of the stator current at the expected harmonic frequency.

Method for operating a power supply system that supplies power to a grid to maintain stator current occurring at a harmonic frequency below a threshold value

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Kharagpur WB, India

Prasun Mishra