中国电机工程学报Issue(4)：776-785,10.DOI:10.13334/j.0258-8013.pcsee.2015.04.003
考虑大规模海上风电接入的多电压等级直流电网运行控制策略研究
Study on Operation Control Strategies of DC Grid With Multi-voltage Level Considering Large Offshore Wind Farm Grid Integration
摘要
Abstract
HVDC transmission technology has been regarded as one of the main solutions for grid integration of large remote offshore wind farms. As the locations of offshore wind farms are uniform depended on wind recourse locations and sea water depth, it is desirable and practical to develop a grid technology that can integrate and transmit large remote offshore wind power from various locations to various load centers. This paper proposed a DC grid technology with multi-voltage level for grid integration of large remote offshore wind farms. Particularly a five terminals DC grid with three voltage levels was presented and studied. DC grids with various voltage levels were interconnected by DC/DC converters. With the proposed technology and control strategies under the given operation conditions, the DC grid with multi-voltage level could be operated stably and reliably. The voltage and power dispatch of the DC gird could be controlled effectively as expected. Simulation results carried out by PSCAD/EMTDC software tool have proved that the proposed technology and operation control strategies were corrective and effective. It also provided the possibility to implement the interconnection between DC grids in the future.关键词
DC/DC 电压变换器/多电压等级/直流电网/海上风电场Key words
DC/DC converter/multi-voltage level/DC grid/offshore wind farm分类
信息技术与安全科学引用本文复制引用
孙蔚,姚良忠,李琰,王志冰,迟永宁..考虑大规模海上风电接入的多电压等级直流电网运行控制策略研究[J].中国电机工程学报,2015,(4):776-785,10.基金项目
国家自然科学基金项目(51261130484)；国家电网公司专项支持(国家电网科研(2013)304号)。 （51261130484）
