| 引用本文: | 于芃,张用,孙辉,等.一种新型模块化交直流混合微电网拓扑优化设计及研究[J].电力系统保护与控制,2017,45(9):26-34.[点击复制] |
| YU Peng,ZHANG Yong,SUN Hui,et al.Optimum design on the new pattern AC-DC mixed modular microgrid topology[J].Power System Protection and Control,2017,45(9):26-34[点击复制] |
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| 一种新型模块化交直流混合微电网拓扑优化设计及研究 |
| 于芃,张用,孙辉,刘兴华,赵鹏,程艳,孙树敏,李广磊,曲玉瑶,王瑞琪 |
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| (国网山东省电力公司电力科学研究院，山东 济南 250002;大连理工大学，辽宁 大连 116024;国网淄博供电公司，山东 淄博 255000;国网东营市供电公司，山东 东营 257100) |
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| 摘要: |
| 微电网是促进分布式电源与可再生能源大规模接入电网的有效手段。针对微电网模块化接入及与大电网友好互动的设计运行需求，提出一种利用背靠背变流器对交直流混合微电网进行模块化封装组网拓扑，并研究了该拓扑多目标、多状态运行控制策略。通过合理设计蓄电池-超级电容器混合储能系统结构及在微电网中接入位置，蓄电池和超级电容器可发挥各自优势为微电网多模态运行提供快速功率/能量支撑。仿真分析表明，所提出的模块化微电网组网拓扑及其运行控制方式是切实可行的，不仅使得并网/孤岛双模式无缝切换成为微电网自然属性，同时还可实现微电网整体有功/无功精确调度，使得微电网成为多特性电源/负荷模块与大电网进行“友好”功率交互。 |
| 关键词: 微电网 拓扑 储能 模式切换 模块 |
| DOI：10.7667/PSPC160692 |
| 投稿时间：2016-05-13修订日期：2016-08-02 |
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| Optimum design on the new pattern AC-DC mixed modular microgrid topology |
| YU Peng,ZHANG Yong,SUN Hui,LIU Xinghua,ZHAO Peng,CHENG Yan,SUN Shumin,LI Guanglei,QU Yuyao,WANG Ruiqi |
| (State Grid Shandong Electric Power Research Institute, Jinan 250002, China;Dalian University of Technology, Dalian 116024, China;State Grid Zibo Electric Power Company, Zibo 255000, China;State Grid Dongying Electric Power Company, Dongying 257100, China) |
| Abstract: |
| Microgrid is one of the most effective technique means for promoting the development of distribution power generation and renewable energy. In order to realize the modular design and friendly operation for the microgrid, this paper proposes a new modular topology for the AC-DC mixed microgrid which is encapsulated by the back-to-back converter. Also, the control algorithm for the multiple operation modes of that modular microgrid topology is studied. By the reasonable design on the topology and the location of battery-supercapacitor hybrid system in the microgrid, the hybrid energy storage system could supply the rapid power and energy support for the microgrid system under different operation modes. At the same time, the energy storage merits of battery and supercapacitor are fully developed. It can be indicated by the simulation analysis that the modular topology of microgrid and the control strategy are feasible, and therefore the seamless switching between the grid-connected mode and the isolated mode becomes the natural property for the modular microgrid. Furthermore, it can conclude by that simulation that the active and reactive power of the modular microgrid can be dispatched precisely. As a result, the microgrid can be considered as a power/load module with multiple characteristics to realize the friendly power interaction with the power grid. |
| Key words: microgrid topology energy storage mode switching modular |
