中国电机工程学报2017，Vol.37Issue(3)：837-847,11.DOI:10.13334/j.0258-8013.pcsee.161220
远海风电场直流汇集用DC/DC变换器拓扑研究
Topology Research of DC/DC Converters for Offshore Wind Farm DC Collection Systems
王新颖 1汤广福 2贺之渊 2魏晓光 2马春艳 3张升 2肖湘宁1
作者信息
- 1. 新能源电力系统国家重点实验室(华北电力大学),北京市昌平区 102206
- 2. 大功率电力电子北京重点实验室(全球能源互联网研究院),北京市昌平区 102209
- 3. 中国电力科学研究院,北京市海淀区 100192
- 折叠
摘要
Abstract
The DC collection systems of offshore wind farms avoid many problems that the AC collection systems encounter, such as multistage boost, connection of a large number of inductors, and bad stability performance. Besides, the DC collection systems need less equipment investment and are quite simple to design. As one of the key components of DC collection systems, DC/DC converters with high voltage ratio are of great importance. This paper firstly investigated the grid configuration, system control and voltage determination of the medium voltage (MV) collection lines of parallel DC collection systems. Secondly, an analysis of the technological requirement for medium and high voltage DC/DC converters in offshore wind farms was conducted with regard to power, voltage ratio and isolation. Furthermore, on the basis of the existent topology research, the topologies of the multiple phase-shift three level DC/DC converter and the modular multilevel DC/DC (M2DC) converter applicable for wind farms were proposed. Finally, the theoretical feasibility of the proposed topologies was verified by simulations, which shows that the control strategy of the proposed topologies can meet the requirements of the whole DC collection systems.关键词
远海风电场/直流汇集/DC/DC变换器/技术需求/电气拓扑Key words
offshore wind farm/DC collection system/DC/DC converter/technological requirement/electrical topology分类
信息技术与安全科学引用本文复制引用
王新颖,汤广福,贺之渊,魏晓光,马春艳,张升,肖湘宁..远海风电场直流汇集用DC/DC变换器拓扑研究[J].中国电机工程学报,2017,37(3):837-847,11.
