应用于海上直流风场的模块化多电平多端口直流变电站拓扑探究

发布时间：2018-05-21 15:50

本文选题：海上直流风电场 + 多端口直流变电站　；参考：《中国电机工程学报》2016年S1期

【摘要】：随着海上风场的大规模化发展,如何经济有效地将分散在海上各处风场所发电能汇聚并传输至岸上成为一个亟待解决的问题。对比传统海上风电场的交流汇聚、直流传输,全直流风场以其体积小、容量大、效率高等优势,引起学界广泛关注。作为全直流风场中的关键设备,多端口直流变电站起着重要的汇聚与传输风能的作用。该文基于模块化多电平结构,针对可能应用于全直流风场中的几种多端口直流变电站拓扑,从变比、故障隔离、容量等几方面展开详细分析与对比,并就在不同场合下应选择何种拓扑作出建议。并提出应用于海上直流风场中的多端口直流变电站最优拓扑。
[Abstract]:With the large-scale development of offshore wind field, it is an urgent problem to solve the problem of how to gather and transmit the power generation energy scattered around the sea wind field to shore economically and effectively. Compared with the conventional offshore wind farms, such as AC converging, DC transmission, full DC wind field has attracted wide attention due to its advantages of small volume, large capacity, high efficiency and so on. As the key equipment in the whole DC wind field, multi-port DC substation plays an important role in converging and transmitting wind energy. Based on the modularized multilevel structure, this paper presents a detailed analysis and comparison of several multi-port DC substation topologies that may be used in the full DC wind field from the aspects of variable ratio, fault isolation, capacity, etc. Suggestions are made on what topology should be chosen in different situations. The optimal topology of multi-port DC substation applied to offshore DC wind field is presented.
【作者单位】：上海交通大学电子信息与电气工程学院风力发电研究中心;全球能源互联网研究院;
【基金】：国家电网科学技术合作项目(直流电网用高压DC/DC变换器前期技术研究)~~
【分类号】：TM63;TM614

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