以净效益最大为目标的储能电池参与二次调频的容量配置方法

doi:10.19595/j.cnki.1000-6753.tces.L80372

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摘要针对储能电源参与电网辅助调频问题,提出一种以净效益最大为目标的储能电池参与二次调频的容量配置方法。综合考虑实时电量、备用功率和环境效益,构建储能电池全寿命周期的成本-效益计算模型;进而建立以净效益最大为目标,以容量及功率为决策变量,综合考虑实时出力、调频需求约束和荷电状态（SOC）约束的储能电池优化配置模型;基于经验模态分解（EMD）原理,设计一种考虑常规机组爬坡率限制的储能参与二次调频的初始功率指令分配方法;并给出了利用遗传算法辅助求解该优化模型的容量配置方法流程。仿真结果表明,所提出的容量配置方法不仅可以得到能够较好地协调经济效益和调频效果的容量配置方案,同时可得到储能出力功率,该功率可作为储能电池的运行调度参考方案,提高了配置方法的工程实用性。

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	汤杰
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	何聪

关键词 ：储能电池, 二次调频, 成本-效益, 容量配置, 优化模型

Abstract：Energy storage power has brought some problems involved in the auxiliary frequency regulation, aiming at the problems, a capacity allocation method of BESS in secondary frequency regulation with the goal of maximum net benefit is proposed. Considering the real-time electricity, reserve power and environmental benefit, the cost-benefit calculation model of full life cycle of BESS is constructed. Then taking the maximum net benefit as the goal, the capacity and the power as the decision variables, and considering the real-time output, the frequency regulation demand constraint and the SOC boundary, the optimization configuration model of BESS is established; Based on the principle of empirical mode decomposition (EMD) and considering the limitation of ramp rate of conventional units, this paper designs an initial power instruction allocation method for BESS in secondary frequency regulation; Also this paper gives the flow chart of capacity allocation method assisted by genetic algorithm. The simulation results show that the proposed capacity allocation method can not only obtain the capacity allocation scheme that can coordinate the economic benefit and frequency regulation effect, but also obtain the energy storage output power. The output power can be used as a reference scheme of BESS, which improves the engineering practicability of the configuration method.

Key words： Battery energy storage system secondary frequency regulation cost-benefit capacity allocation optimization model

收稿日期: 2018-06-29 出版日期: 2019-03-21

PACS:

TM732

基金资助:国家自然科学基金（51477043）、湖南省科技重大专项(2016GK1003)和国网湖南省电力有限公司科技项目（5216A1170002）资助

通讯作者: 黄际元, 男,1988年生,博士,高级工程师,研究方向为储能在电力系统中的应用及优化调度技术。E-mail：hjycm@hnu. edu. cn

作者简介: 汤杰,女,1993年生,硕士研究生,研究方向为电力系统分析与控制、储能技术与新能源并网等。E-mail：2647532500@qq.com

引用本文:

汤杰,李欣然,黄际元,徐飘,何聪. 以净效益最大为目标的储能电池参与二次调频的容量配置方法[J]. 电工技术学报, 2019, 34(5): 963-972. Tang Jie, Li Xinran, Huang Jiyuan, Xu Piao, He Cong. Capacity Allocation of BESS in Secondary Frequency Regulation with the Goal of Maximum Net Benefit. Transactions of China Electrotechnical Society, 2019, 34(5): 963-972.

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