面向经济评估的电池储能系统工况特征量嵌入性研究

发布时间：2018-03-10 08:32

本文选题：电池储能系统　切入点：工况特征量　出处：《电力系统保护与控制》2017年22期 　论文类型：期刊论文

【摘要】：储能系统的投资过程主要包括初始购置、运维和置换三个阶段,不同的应用工况将对电池储能系统的寿命衰减速率产生差异化影响,进而影响其成本投入过程,也是储能系统经济评估中的必要考虑因素。面向储能系统的经济性动态评估,首先定义温度、倍率、放电深度(Depth of Discharge,DOD)、充放电频次等作为储能工况特征量。基于工况特征量与电池寿命损耗之间的关联关系,建立了计及工况特征参量的储能系统出力模型和成本模型。基于全寿命周期成本模型(Life Cycle Cost,LCC)和遗传算法,分析了工况特征量在储能成本评估中考虑的必要性及其影响程度。最后,在平抑光伏波动和负荷侧削峰填谷两种工况下展开算例分析,验证了在储能规划过程中考虑工况特征量的必要性。该研究将为储能规划阶段的经济性评估提供理论依据与数据基础。
[Abstract]:The investment process of energy storage system mainly includes three stages: initial purchase, transportation and replacement. Different application conditions will have a different effect on the life decay rate of battery energy storage system, and then affect the process of cost input. It is also a necessary factor in the economic evaluation of energy storage system. For dynamic economic evaluation of energy storage system, the first definition of temperature, ratio, The depth of discharge is depth of discharge, and the frequency of charge and discharge is used as the characteristic of energy storage condition. Based on the life Cycle cost model and genetic algorithm, the output model and cost model of energy storage system are established, which take into account the characteristic parameters of operating conditions. This paper analyzes the necessity and influence degree of considering the operating mode characteristic quantity in the energy storage cost assessment. Finally, an example is developed under the condition of suppressing the photovoltaic fluctuation and cutting the peak and filling the valley on the load side. It is proved that it is necessary to consider the operating mode characteristic quantity in the process of energy storage planning, which will provide the theoretical basis and data basis for the economic evaluation of energy storage planning stage.
【作者单位】：中国电力科学研究院新能源与储能运行控制国家重点实验室;
【基金】：国家重点研发计划专项(2016YFB0901705)“基于新型锂离子电池的大规模储能系统集成及应用示范”
【分类号】：TM912

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