Patent ID: 8288888

Claim:
A method for controlling the distribution of electric power from a wind farm generating at least one of medium to high voltage AC electricity and medium voltage DC electricity to a plurality of electrolyser modules for producing hydrogen, comprising the steps of: a. estimating the real time available DC power from the wind farm, the real time available DC power controlled independently from the electrolyser modules; b. determining the number of available electrolyser modules; c. measuring at least one of the temperature and the voltage of each electrolyser module; d. determining a target current set point for each of said plurality of electrolyser modules based on the estimated available DC power, the number of available electrolyser modules, and the voltage of each of said available electrolyser modules; e. controlling the DC current supplied by at least one DC-DC power converter to each of said available electrolyser modules to bring the DC current to said target current set point; and f. periodically repeating steps a to e during operation to compensate for changes in the real time available DC power from the wind farm.