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Research on multi-objective optimal scheduling strategy of new energy hydrogen production system

A multi-objective optimal scheduling strategy based on improved radar graph model was proposed to solve the operation scheduling problem of new energy hydrogen production system in the scenario of grid-connected with no power injection. Firstly, a new energy hydrogen production system structure containing photovoltaic cells, wind power cells, lithium batteries, electrolytic cells, hydrogen storage tanks and electric and hydrogen loads is proposed. Secondly, considering real-time electricity price, parallel operation of multiple electrolytic cells and the utilization rate of new energy, three optimization objectives including economic benefit, wind and light abandoning rate and environmental cost were selected. The objective function was established through the improved radar diagram model with multiple objectives to meet the constraints of electricity and hydrogen load balance and unit operation constraints. Finally, the optimization solution is performed, and the results show that the proposed optimal scheduling strategy can reduce the start-stop of electrolytic cell and avoid power purchase during peak period. Compared with the single-objective optimization results, the comprehensive performance is the best, which verifies the correctness of the proposed multi-objective optimal scheduling strategy.