Power dispatch system for electrolytic production of hydrogen from wind power

A method for controlling distribution of electric power from a wind farm to a plurality of hydrogen producing electrolyser modules comprising:

• estimating an amount of DC power available from the wind farm, the wind farm controlled independently from the electrolyser modules;
• identifying a number of available electrolyser modules;
• measuring a voltage of each electrolyser module;
• determining a target current for each electrolyser module based on the estimated amount of DC power available from the wind farm, the identified number of available electrolyser modules, and the measured voltage of each electrolyser module;
• controlling DC current supplied by at least one DC-DC power converter to each of the available electrolyser modules to bring the DC current to the target current;
• and
• periodically repeating the method to compensate for changes in the amount of DC power available from the wind farm.

A method for controlling distribution of electric power from a wind farm to a plurality of hydrogen producing electrolyser modules comprising:

• determining a target current for each electrolyser module based on an estimated amount of DC power available from the wind farm, an identified number of available electrolyser modules, and a measured voltage of each electrolyser module;
• providing the target current to each of the available electrolyser modules, the target current provided by at least one DC-DC power converter;
• and
• modifying the target current in response to a change in the amount of DC power available from the wind farm, and providing the modified target current to each of the available electrolyser modules;
• wherein the DC power available from the wind farm is controlled independently of the method.