摘要
提出一种面向电网需求的钒液流电池储能系统多时间尺度建模的方法,结合储能系统直流侧数字仿真模型及功率变换系统,构成描述电磁时间尺度特征的电磁暂态模型。基于此,考虑机电暂态时间尺度需求,结合模型参数辨识方法建立钒液流电池储能系统的机电暂态模型,同时考虑稳态时间尺度需求对储能系统综合特性进行分析并建立稳态模型。以实际运行数据为基础,对钒液流电池储能系统模型有效性进行检验。结果表明,暂态模型仿真数据与实际储能运行数据及特性相吻合,稳态模型具有高度统一性,能较好地描述储能的充放电静态过程。
This paper proposed a method for constructing multi-time scale model of vanadium flow battery energy storage system for grid demand. Combining with the digital simulation model of the DC side for the energy storage system and the power control system to constructe an electromagnetic transient model that describes the characteristics of electromagnetic transient time scale. Based on that,the electromechanical transient model of battery energy storage system was established by considering the requirements of electromechanical transient time scale and the method of model parameter identification. At the same time,the steady state model was established by considering the steady-state time scale requirements and the comprehensive characteristics of the energy storage system. On the base of the actual operating data,the validity of the vanadium flow battery energy storage system model was tested. The results show that the transient model simulation data is consistent with the actual energy storage operation data and characteristics,while the steady state model is highly uniform,which can better describe the static process of charge and discharge of energy storage.
作者
黄际元
戴文莉
李欣然
杨俊
黎淑娟
HUANG Jiyuan;DAI Wenli;LI Xinran;YANG Jun;LI Shujuan(State Grid Hunan Electric Power Corporation Changsha Power Supply Company,Changsha 410015,China;College of Electrical and Information Engineering,Hunan University,Changsha 410082,China;Wuhan NARI Limited Company of State Grid Electric Power Research Institute ,Wuhan 430074,China)
出处
《电器与能效管理技术》
2018年第24期72-77,84,共7页
Electrical & Energy Management Technology
基金
国网湖南省电力有限公司科技项目(5216A1170002)
湖南省科技重大专项(2016GK1003)
关键词
钒液流
电磁
机电
稳态
参数辨识
vanadium redox
electromagnetic
electromechanical
steady
parameter identification
