| 引用本文: | 葛维春,孙恺,葛延峰,等.计及大规模全钒液流电池储能系统外特性建模与仿真[J].电力系统保护与控制,2019,47(17):171-179.[点击复制] |
| GE Weichun,SUN Kai,GE Yanfeng,et al.Modelling and simulation considering external characteristics of large scale VFB energy storage system[J].Power System Protection and Control,2019,47(17):171-179[点击复制] |
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| 计及大规模全钒液流电池储能系统外特性建模与仿真 |
| 葛维春,孙恺,葛延峰,刘宗浩,史松杰,周博然,黄佳伟,刘静豪,张蓉蓉 |
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| (国网辽宁省电力有限公司，辽宁 沈阳 110000;大连融慧能源科技有限公司，辽宁 大连 116025;国网辽宁省 电力有限公司电力科学研究院，辽宁 沈阳 110006;国网辽宁省电力有限公司大连供电公司，辽宁 大连 116023) |
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| 摘要: |
| 研究了全钒液流电池(VFB)储能系统外部运行特性，基于VFB电化学性质开展了储能系统(ESS)建模仿真工作。系统地分析储能系统实际运行数据并评估其过载运行对调度控制的影响，对荷电状态(SOC)、电动势以及等效电阻等关键参数进行拟合并得到函数关系。在此基础上，以戴维南等效电路作为仿真模型主电路，控制模块计算状态参量的变化值，并以受控源和受控电阻的方式将状态参量变化实时反馈到主电路，同时将储能系统过载运行的运行特点嵌入到所建模型中。最后，通过Matlab/Simulink搭建所提模型并仿真运行。仿真运行结果与实测数据对比表明该模型可有效描述储能系统运行外特性，具有较高的工程应用价值。 |
| 关键词: 全钒液流电池 储能系统 仿真建模 外特性 过载运行 参数拟合 |
| DOI：10.19783/j.cnki.pspc.181186 |
| 投稿时间：2018-09-18修订日期：2018-12-29 |
| 基金项目:国家自然科学基金(U1766204);国家电网公司科技项目(2018ZX-10);国家电网公司总部科技项目“超大容量电池储能电站并网运行关键技术及应用” |
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| Modelling and simulation considering external characteristics of large scale VFB energy storage system |
| GE Weichun,SUN Kai,GE Yanfeng,LIU Zonghao,SHI Songjie,ZHOU Boran,HUANG Jiawei,LIU Jinghao,ZHANG Rongrong |
| (State Grid Liaoning Electric Power Co., Ltd., Shenyang 110000, China;Dalian Conspark Energy Co., Ltd., Dalian 116025, China;Electric Power Research Institute of State Grid Liaoning Electric Power Co., Ltd., Shenyang 110006, China;Dalian Electric Power Company, State Grid Liaoning Electric Power Co., Ltd., Dalian 116023, China) |
| Abstract: |
| The Energy Storage System (ESS) external characteristics of Vanadium Flow Battery (VFB) are studied, and the ESS is simulated based on the VFB electrochemical properties in this paper. Based on the systematic analysis of the actual operation data of ESS and the evaluation of the influence of the overload operation of ESS on the scheduling control, the function relationship is obtained by combining the key parameters such as State of Charge (SOC), electromotive force and equivalent resistance. On this basis, the Thevenin’s equivalent circuit is used as the main circuit of the simulation model, and the state parameter change is fed back to the main circuit in real time by means of controlled source and controlled resistance, and the running characteristics of the overload operation of ESS are embedded in the model. Finally, the proposed model is built and simulated by Matlab/Simulink. The comparison between the simulation results and the measured data show that the model can effectively describe the external characteristics of ESS and has high engineering application value. This work is supported by National Natural Science Foundation of China (No. U1766204), Science and Technology Project of State Grid Corporation of China (No. 2018ZX-10), and Science and Technology Project of the Headquarter of State Grid Corporation of China “Key Technology and Application of Super Capacity Battery ESS Grid-connected Operation”. |
| Key words: vanadium flow battery (VFB) energy storage system (ESS) simulation modeling external characteristics overload operation parameters fitting |
