含脉冲负载的综合电力系统储能优化配置研究

Research on optimal configuration of energy storage in integrated power system with pulse load

考虑到舰船环境限制和高能脉冲负载对储能的需求,有必要对储能装置进行合理的选型和优化配置,来提升综合电力系统性能。为此,基于带权极小模理想点法和层次分析法,提出了一种储能装置性能评价函数,并以其为优化目标,进行储能装置优化配置。所提出的评价函数充分考虑系统需求和脉冲负载特性,以储能装置体积、质量和经济性作为评价函数主要组成部分,同时考虑功率、能量、电压、荷电状态等约束,建立优化配置模型,并采用差分进化算法进行求解。以高性能锂电池和超级电容器为例,对所提模型进行求解计算,结果表明在所给权重系数下锂电池性能更优,更适用于综合电力系统,并给出了优化配置后的指导方案。

Considering the vessel environmental constraints and the requirements of pulsed load, it is necessary to rationally select and configure the ESD(energy storage device) to improve the performance of the vessel integrated power system. For this reason, based on the weighted minimal module ideal point method and analytic hierarchy process, a performance evaluation function of ESD was proposed, and the optimal configuration was carried out with this function. The proposed function fully considers the system requirements and pulse load characteristics, and takes the ESD volume, weight, and economy as the main components of the evaluation function. At the same time, it takes power, energy, voltage, and state of charge as constrains to establish an optimal configuration model. The differential evolution algorithm was adopted to solve it. The proposed model was solved and calculated with the example of high performance lithium battery and supercapacitor. The results show that lithium battery has better performance and are more suitable for integrated power system under the given weight. Besides, the guiding configuration scheme was given.