摘要
当前柔性直流输电技术已成为一种主流输电方式,具有运行方式灵活、支持多电源供电与多落点受电的特征,在城市电网建设、海岛或海上平台输电等领域广泛应用。从阐释柔性直流输电技术原理入手,针对基于MMC的多端柔性直流输电系统运行原理及控制策略设计思路进行详细分析,围绕新能源并网、异步电网互联、电网增容扩建3个层面延伸出技术应用前景,并聚焦引入新型断路器、全球能源互联网以及沿海孤岛供电维度进行未来发展趋势的展望,以期为柔性直流输电系统的技术更新及输电方式变革路径研究提供参考,为建设坚强电网目标的实现创设保障。
At present,flexible DC transmission technology has become a mainstream transmission mode,which has the characteristics of flexible operation mode,multi-power supply and multi-drop point power supply,and has gained wide application value in urban power supply,island or offshore platform transmission and other fields.Based on explaining the principle of flexible direct current transmission technology,this paper analyzes the operating principle and control strategy design of multi-terminal flexible direct current transmission system based on MMC in detail,extends the technology application prospect around three aspects:new energy grid connection,asynchronous.
出处
《电力系统装备》
2021年第7期28-29,共2页
Electric Power System Equipment
关键词
直流输电
断路器
电网增容
能源互联网
孤岛供电
direct current transmission
circuit breaker
grid capacity increase
energy internet
power supply
