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基于有功比例微分前馈VSG的柴储微网有功振荡抑制策略

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在负载扰动下,传统储能虚拟同步机(Virtual Synchronous Generator,VSG)与柴油发电机(Diesel Generator Set,DGS)并联组网系统存在有功功率动态振荡.文章提出一种基于有功比例微分前馈VSG(Active-power Proportional Differential Feedforward VSG,APDF-VSG)的柴储微网有功动态振荡抑制策略.首先建立储能VSG与DGS并联组网系统的小信号模型,分析储能VSG的虚拟惯量、虚拟阻尼及输出阻抗参数对系统有功振荡的影响规律,在此基础上提出基于APDF-VSG的柴储微网有功动态振荡抑制策略,并给出相应的参数设计过程.最后,建立储能VSG与DGS并联组网系统的Matlab仿真模型,并利用仿真结果验证所述APDF-VSG控制策略在抑制柴储微网有功动态振荡方面的有效性.
An active-power oscillation suppression strategy for diesel-storage-microgrid based on active-power proportional differential feedforward VSG
In order to solve the active-power dynamic oscillation problem of parallel system for traditional energy storage virtual synchronous generator(VSG)and diesel generator set(DGS)under load disturbance,an active-power dynamic oscillation suppression strategy for diesel storage microgrid based on active-power proportional differential feedforward VSG(APDF-VSG)is proposed in this paper.Firstly,the small signal model of the parallel system for energy storage VSG and DGS is established,as well as the influences of virtual inertia,virtual damp and output impedance parameters of energy storage VSG on active-power oscillation of the system are analyzed.On this basis,the active-power dynamic oscillation suppression strategy based on ADPF-VSG is proposed and the corresponding parameter design process is given.Finally,the MATLAB simulation model of the parallel system for energy storage VSG and DGS is established,and the simulation results are used to verify the effectiveness of the proposed APDF-VSG control strategy in suppressing active-power dynamic oscillation of the diesel-storage-microgrid.

energy storage virtual synchronous generatormicrogridactive-power dynamic oscillationsmall signal model

石荣亮、王国斌、兰才华、刘维莎、周其锋

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桂林理工大学 广西高校先进制造与自动化技术重点实验室,广西 桂林 541006

储能虚拟同步机 微网 有功动态振荡 小信号模型

广西自然科学基金青年项目广西自然科学基金面上项目

2020GXNSFBA2971242021GXNSFAA220038

2024

可再生能源
辽宁省能源研究所 中国农村能源行业协会 中国资源综合利用协会可再生能源专委会 中国生物质能技术开发中心 辽宁省太阳能学会

可再生能源

CSTPCD北大核心
影响因子:0.605
ISSN:1671-5292
年,卷(期):2024.42(8)