Research on the comprehensive performance evaluation framework of hybrid energy storage system for all-electric ships based on AHP and Entropy Weight Method

In the context of carbon peaking and carbon neutrality goals, the hybrid energy storage system for all-electric ships has gained significant attention due to its energy-saving, environmentally friendly, and flexible characteristics. Quantifying and evaluating the effects of optimal design and control of hybrid energy storage systems is an urgent problem that needs to be addressed. This paper presents a comprehensive performance evaluation framework that is more aligned with the working characteristics of hybrid energy storage systems, using the Analytic Hierarchy Process (AHP) and Entropy Weight Method. The evaluation index system, which includes security, reliability, and stability as well as economy, was constructed based on the results obtained from a questionnaire survey of experienced experts in China. The subjective and objective weights of the indexes are calculated by using the AHP and Entropy Weight Method, respectively. Finally, an evaluation of a ship’s hybrid energy storage system is carried out to demonstrate the feasibility of the proposed method.