摘要
随着海上风电场的快速建设,经济有效的大规模海上风能汇聚和传输方式已被日益关注。为了使未来的海上风电场更好地采用高压直流输电并网,先进的直流变换和直流风机的概念被引入,以形成全直流型风电场。针对海上全直流型风电场4大关键科技问题的国内外研究现状进行梳理,包括:组网方式(有无升压站)与评价方法;关键设备(直流风电机组、海上升压站中直流变压器、岸上换流站和直流断路器)技术;运行与控制;故障与保护。结合以上关键技术的发展趋势,对未来海上全直流型风电场进行展望,并给出一种基于模块化多电平技术的推荐配置。
With the fast development of offshore wind farm, the cost-effective collection and transmission of large-scale offshore wind power are concerned increasingly. To better integrate the HVDC technology to the future offshore wind farms, advanced concepts of DC-DC power conversion and DC wind turbines can be extended to all-DC wind farm design. The state-of-art of four key technologies of the offshore all-DC wind farm are studied, including networking mode（with/without step-up substation） and its evaluation method; key devices（DC wind turbine, DC transformer in offshore step-up substation, onshore converter station and DC circuit breaker） and their technology; operation and control; fault and protection. The prospect of offshore all-DC wind farm is given based on the development trends of these key technologies. A recommended configuration is also proposed based on modular multilevel converter.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2016年第8期2036-2048,共13页
Proceedings of the CSEE
基金
国家863高技术基金项目(2013AA050601)
上海市科委基金资助项目(13dz1200202)~~
