姜静雅;王玮;唐芬;吴学智;李相俊;杨正文;

• 1:国家能源主动配电网技术研发中心(北京交通大学)
• 2:中国电力科学研究院有限公司

摘要(Abstract)：

建模和仿真是研究储能系统控制应用的重要工具。针对储能变流器的虚拟同步机(virtualsynchronousgenerator,VSG)控制,提出了一种基于电网扰动暂态响应分析的黑箱建模方法。首先基于VSG二阶非线性模型及其在工作点附近的小信号摄动处理,分析电网运行条件和功率指令对黑箱参数的影响,由此确定了黑箱参数MPf辨识采用输出误差(outputerror,OE)模型,黑箱参数MQU辨识采用多中心(polytopic)模型,进一步分析了OE模型的适用条件,并给出了辨识和建模流程。然后通过电网扰动激励出功率振荡模态信息,利用最小二乘法辨识黑箱参数。最后根据实验数据建立了VSG黑箱模型并且验证了模型的有效性,同时在Matlab/Simulink里搭建仿真模型,通过对比详细仿真模型和黑箱模型的仿真速度与存储空间,验证了黑箱模型适用于系统层对大规模储能系统的仿真分析。

关键词(KeyWords)： 储能系统;虚拟同步机;黑箱建模;参数辨识;Polytopic模型

Abstract:

Keywords:

基金项目(Foundation): 国家重点研发计划项目(2018YFB0905200)~~

作者(Author): 姜静雅;王玮;唐芬;吴学智;李相俊;杨正文;

Email:

DOI: 10.13335/j.1000-3673.pst.2020.0122a

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