Based on IFIFO grid-connected control of MW hydrogen energy storage power station

Hydrogen energy storage will vigorously promote the realization of the “two-carbon” goal and the construction of a new power system. Large-scale megawatt hydrogen energy storage power station has advantages of speed, flexibility and wide range of power adjustment, so it will play an important role in the new power system. In view of the inconsistence between hydrogen production and generation power, capacity and dynamic characteristics of megawatt hydrogen energy storage power station, which leads to complex grid-connected structure and difficulty in system uniform response AGC control, AC/DC and DC/DC grid-connected structures of megawatt hydrogen energy storage power station are designed in this paper. The Improved First In First Out (IFIFO) theory based DC/DC power balanced distribution method is proposed, which not only satisfies the DC/DC balanced utilization, but also realizes the fine tracking of the power station to the power grid automatic generation control response. It satisfies the high-precision tracking of power AGC instruction with error less than 5%. Through the dynamic simulation of automatic generation control response of hydrogen energy storage power station, the effectiveness of the grid-connected structure and control method is verified.