When traditional nuclear power plants operate for peak shaving

they are influenced by the load tracking mode and safety constraints

leading to relatively poor flexibility and economic efficiency. In contrast

an SMR (small modular reactor) has advantages such as being clean

low-carbon

highly efficient

reliable

and has a strong load tracking ability. Moreover

SMR can provide a high temperature energy source for hydrogen production. However

the research on the coordinated dispatching of SMR-hydrogen cogeneration participating in power grid peak regulation is still blank. In order to solve the above problems

based on the heat distribution and control strategy of SMR-hydrogen cogeneration system

the reverse hydrogen coupling characteristics of nuclear cogeneration unit (NCP) are analyzed. Utilizing the operation characteristics of SMR co-supply of electricity and hydrogen to participate in peak regulation

in order to minimize the total cost of unit joint operation as the optimization goal

and comprehensively considering the cost of SMR peak regulation

the cost of abandoning wind and light and the constraints of conventional units

we constructed a cooperative optimal dispatching model of wind

wind and hydrogen. Through the analysis of different SMR scheduling scenarios

the effectiveness of the model in improving the flexibility of peak regulation and the capacity of absorbing renewable energy is verified. Moreover

the proposed strategy enhances the load regulation flexibility and operational economy of the SMR unit while ensuring the safety of nuclear power load regulation and maintaining constant thermal output. By utilizing load tracking to direct excess heat to hydrogen production in the SMR-hydrogen cogeneration system

comprehensive operating costs can be effectively reduced by 12.05% and 14.51% respectively.