电网技术2016，Vol.40Issue(3)：678-682,5.DOI:10.13335/j.1000-3673.pst.2016.03.003
架空线柔性直流电网构建方案
Construction Scheme of Overhead Line Flexible HVDC Grid
孙栩 1曹士冬 2卜广全 1王华伟 1雷霄 1卢斌先2
作者信息
- 1. 中国电力科学研究院,北京市海淀区100192
- 2. 华北电力大学电气与电子工程学院,北京市昌平区102206
- 折叠
摘要
Abstract
This paper researches construction scheme on overhead line flexible HVDC grid in aspects such as topology,key devices and control and protection.HVDC grid network is in square configuration and station network is in symmetrical monopole configuration.There are two choices for sub-module,i.e.half bridge topology combining HV heavy current DC breaker and fault self-clearance topology combining fast mechanical DC switch.Half bridge sub-module scheme is simple and mature,but needs super fast protective device.DC breakers may not protect all stations completely during faults and a large number of converter and line current-limiting reactors are needed.Fault self-clearance sub-module scheme don't need super fast protection device,but will cause short period block in all stations after DC line faults.At present,key devices and control and protection are not difficult problems for overhead line flexible HVDC grid.关键词
架空线/柔性直流电网/构建方案Key words
overhead line/flexible HVDC grid/construction scheme分类
信息技术与安全科学引用本文复制引用
孙栩,曹士冬,卜广全,王华伟,雷霄,卢斌先..架空线柔性直流电网构建方案[J].电网技术,2016,40(3):678-682,5.
