CPC H02J 3/381 (2013.01) [H02J 2300/24 (2020.01); H02J 2300/28 (2020.01)] | 15 Claims |
1. A direct-current coupling hydrogen production system, comprising: at least one electricity generation system and a plurality of hydrogen production electrolyzer systems, wherein
the at least one electricity generation system each comprises: a controller, N renewable energy systems, a plurality of conversion systems and a power switching unit, and N is an integer greater than 1;
the plurality of conversion systems and the power switching unit each are arranged on an electrical energy transmission path from the N renewable energy systems to M hydrogen production electrolyzer systems, and M is an integer greater than 1;
the power switching unit comprises N input ports and M output ports; and
the controller is configured to:
acquire a maximum power point tracking MPPT value of each of the conversion systems;
determine a to-be-operated hydrogen production electrolyzer system among the M hydrogen production electrolyzer systems based on all the MPPT values and a minimum startup electrical parameter of a hydrogen production electrolyzer system; and
control the power switching unit to supply electrical energy to the to-be-operated hydrogen production electrolyzer system for hydrogen production, so that electrical energy received by each to-be-operated hydrogen production electrolyzer system is sufficient for hydrogen production, and all the to-be-operated hydrogen production electrolyzer system operates independently.
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