考虑输电功率平稳性的新型电力系统需求侧多能互补优化

新型电力系统需求侧多能互补涉及多种能源类型的转换和传输,由于仅设置了单一的约束条件,导致目标函数的可靠性低,优化效果差,因此设计了考虑输电功率平稳性的新型电力系统需求侧多能互补优化方法。以新型电力系统的经济效益最大化为基础,设定新型电力系统需求侧多能互补优化目标函数。在考虑输电功率平稳性的前提下,结合储能约束,确定多能互补优化目标函数约束条件,并对其进行求解,制定对应的多能互补优化策略。实验结果表明,设计的考虑输电功率平稳性的新型电力系统需求侧多能互补优化方法在实际应用中的能源消耗量较低,优化效果较好。

海港综合能源系统低碳经济发展研究综述

在我国“碳达峰与碳中和”愿景下,海港综合能源系统正通过全面电气化降低二氧化碳排放,实现海洋能源的可持续发展,但多能流融合给海港能源配置与优化运行带来新挑战。该文首先结合海港节能减排政策,对海港综合能源系统低碳经济发展进行概述;然后,从能源侧、负荷侧和能源存储3个层次分析海港综合能源系统特点,总结促进海港低碳减排的能源交易、碳捕集与利用封存、储能系统优化配置和多能互补协同优化运行关键技术;最后,对基于储能系统的未来海港低碳经济发展研究方向进行展望。

Configuration optimization model of multi-energy distributed generation system

To integrate different renewable energy resources effectively in a microgrid, a configuration optimization model of a multi-energy distributed generation（DG） system and its auxiliary equipment is proposed. The model mainly consists of two parts, the determination of initial configuration schemes according to user preference and the selection of the optimal scheme. The comprehensive evaluation index（CEI）, which is acquired through the analytic hierarchy process（AHP） weight calculation method, is adopted as the evaluation criterion to rank the initial schemes. The optimal scheme is obtained according to the ranking results. The proposed model takes the diversity of different equipment parameters and investment cost into consideration and can give relatively suitable and economical suggestions for system configuration.Additionally, unlike Homer Pro, the proposed model considers the complementation of different renewable energy resources, and thus the rationality of the multi-energy DG system is improved compared with the single evaluation criterion method which only considers the total cost.