多源多变换微电网系统建模与动态稳定分析方法

发布时间：2018-04-19 05:16

  本文选题：微电网 + 多源多变换　； 参考：《控制理论与应用》2017年08期

【摘要】：微电网内部电力电子变换器接口型分布式电源广泛存在.电力电子接口微源具备与传统电力系统电源拓扑结构、控制方法和动态特性的差异性,控制方法的多样性、电力电子接口微源高渗透率将给低惯量微电网的协调控制和安全稳定运行带来严峻的挑战.多类型微源、多类型负荷在微电网内混合共存,可能引发源源耦合交互、负荷间交互以及源荷交互,不同特性的设备间相互作用将重新塑造区别与传统电力系统的动态响应特性,并诱发稳定性问题.本文首先归纳总结可再生能源渗透率不断提升下多源多变换微电网典型运行特性和存在的稳定性问题,详细阐述了含风光柴储多源多变换接口的微电网模块化动态建模方法.在此基础上,给出了用于微电网动态稳定分析的特征值分析方法和基本步骤.以珠海东澳岛多源多变换智能微电网为对象,基于提出的动态建模方法和动态稳定分析方法,给出建模与分析讨论结果.论文对多源多变换微电网系统动态稳定分析方法的论述可为微电网的广泛推广和应用提供建模和分析理论基础.
[Abstract]:Power electronic converter interface distributed power generation is widely used in microgrid.The power electronic interface microsource has the difference from the traditional power supply topology, control methods and dynamic characteristics, and the diversity of control methods.The high permeability of power electronic interface microsource will bring serious challenges to the coordination control and safe and stable operation of low inertia microgrid.Multi-type micro-source and multi-type load coexist in microgrid, which may lead to source-source coupling interaction, inter-load interaction and source-load interaction.The interaction between devices with different characteristics will reshape the dynamic response characteristics of different power systems and induce stability problems.In this paper, the typical operation characteristics and stability problems of multi-source multi-transformation microgrid with increasing renewable energy permeability are summarized firstly, and the modular dynamic modeling method of micro-grid with wind-firewood multi-source multi-transformation interface is described in detail.On this basis, the eigenvalue analysis method and basic steps for dynamic stability analysis of microgrid are presented.Based on the proposed dynamic modeling method and dynamic stability analysis method, the results of modeling and analysis are given based on the multi-source and multi-transform smart microgrid in Dongao Island, Zhuhai.In this paper, the dynamic stability analysis method of multi-source and multi-transform microgrid system can provide a theoretical basis for modeling and analysis for the wide application and popularization of micro-grid.
【作者单位】： 华南理工大学电力学院;华南理工大学广东省绿色能源技术重点实验室;华南理工大学风电控制与并网技术国家地方联合工程实验室;
【基金】：国家高技术研究发展计划项目(“863”计划)(2014AA052001) 广东省科技计划项目(2012B040303005) 南方电网科学研究院科技项目(SEPRIK143003) 广州市南沙区科技计划项目(2013P005) 国家留学基金管理委员会资助联合培养博士研究生项目(201406150017)资助~~
【分类号】：TM727
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本文编号：1771736