In order to improve the consumption of new energy and promote the development of clean energy network in the context of low carbon economy, this paper proposes a robust planning model for the electricity and hydrogen energy system considering the electricity-hydrogen coupling and the stepped carbon trading. By introducing a ladder carbon trading mechanism into the robust planning model, the electricity and hydrogen energy system is guided to control the carbon emissions, thereby reducing carbon release in the electricity and hydrogen energy system; The load transfer is carried out through the hybrid energy storage coupled with the electric hydrogen in order to stabilize the fluctuation of renewable energy output and reduce the cost of electricity purchase and the abandonment of wind and light. Aiming at the intermittency and uncertainty of the wind and light in the system, the multi-scenario confidence gap decision theory is used to solve the robust planning scheme under the uncertain parameters.
In view of the high-dimensional nonlinearity and the big difficulty in solving the planning model constructed in this paper, an improved fireworks algorithm based on the elimination tournament mechanism is used to solve it. Finally, the simulation results of the numerical examples show that the proposed model and method is able to cut the peaks and fill the valleys in the power supply, effectively improving the consumption of the new energy and reducing the carbon emissions of the system.