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基于SOC状态反馈的混合储能功率优化策略
引用本文:孙纯军,倪春花,窦晓波. 基于SOC状态反馈的混合储能功率优化策略[J]. 电测与仪表, 2016, 53(15): 81-88. DOI: 10.3969/j.issn.1001-1390.2016.15.016
作者姓名:孙纯军  倪春花  窦晓波
作者单位:1. 中国能源建设集团江苏省电力设计院,南京,211102;2. 东南大学电气工程学院,南京,210096
基金项目:东大-中国能建江苏院研发中心项目(8516000346);国家高技术研究发展计划(863计划)项目(2014AA052002);国家自科学基金资助项目(51307023);江苏省基础研究计划项目(BK20130624)
摘    要:文中储能系统功率优化分配以一阶惯性滤波系统为基础,介绍了滤波系数的确定方法,首先提出了基于频谱分析的混合储能系统功率分配方法,根据频谱分析结果,确定波动功率在蓄电池与超级电容之间的分配;在频谱分析的基础上,进一步提出了基于SOC状态反馈的混合储能系统功率优化分配方法,并采用模糊控制,根据储能系统荷电状态SOC的值实时调整系统的滤波时间参数,从而实现超级电容-蓄电池储能系统的长期有效运行。最后,在PSCAD/EMTDC中搭建微电网仿真模型,并设计仿真方案,通过仿真验证所提混合储能系统功率优化分配策略的有效性。

关 键 词:微电网  混合储能  功率分配  SOC反馈
收稿时间:2015-04-08
修稿时间:2015-04-08

Research on Optimal Power Allocation Strategy Based on SOC State Feedback in Hybrid Energy Storage System
SUN Chunjun,NI Chun-hua and DOU Xiaobo. Research on Optimal Power Allocation Strategy Based on SOC State Feedback in Hybrid Energy Storage System[J]. Electrical Measurement & Instrumentation, 2016, 53(15): 81-88. DOI: 10.3969/j.issn.1001-1390.2016.15.016
Authors:SUN Chunjun  NI Chun-hua  DOU Xiaobo
Affiliation:Jiangsu Power Design Institute Co., Ltd. of China Energy Engineering Group,School of Electrical Engineering,Southeast University,School of Electrical Engineering,Southeast University
Abstract:Energy storage system has an important significance for reliable and stable operation of micro-grids.Con-sidering the lack of single form of energy storage, ultra-capacitor-battery hybrid energy storage system is used in this paper.Strategies of power distribution of energy storage system are based on first order inertial filter system, and the method to determine the filter coefficients are introduced.Firstly, a method based on spectrum analysis is proposed to distribute the fluctuated power between the battery and ultra-capacitor.Next, a power distribution strategy of hybrid energy storage system based on SOC feedback is proposed.And fuzzy control method is adopted to adjust system pa-rameters in real time according to the state of charge of the storage system, thus achieving the long term operation of hybrid energy storage system.Finally, the models are built in PSCAD /EMTDC to verify the effectiveness of the pow-er distribution strategies through simulation according to the designed projects.
Keywords:micro-grid  hybrid energy storage system  optimal power distribution  SOC feedback
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