The application provides a
hydrogen-electric
hybrid energy storage capacity optimization method and device applied to a comprehensive
energy system, and belongs to the field of comprehensive energy
configuration optimization. The method provided by the application comprises the following steps: adopting an adaptive
time sequence compression
algorithm, performing adaptive grouping, weighted fusion and iterative updating
processing on original
time sequence data of the comprehensive
energy system in a whole year, and compressing to obtain representative
time sequence data; based on the representative time sequence data, a
capacity planning model is constructed, and a capacity pre-planning value of a
system core device is solved; the capacity pre-planning value is substituted into the original time sequence data, the
capacity planning model is reused, the
hydrogen energy storage capacity is checked and corrected through full-time sequence
energy balance simulation, and the final capacity configuration of the
system core device is obtained; based on the final capacity configuration,
system operation is simulated, an electric and thermal
power imbalance residual error sequence is extracted, a residual error fluctuation
scenario and a corresponding probability are extracted, independent optimization models of
electric energy storage and
thermal energy storage are constructed, and optimal capacities of the
electric energy storage and the
thermal energy storage are solved.