南方电网技术2017，Vol.11Issue(7)：5-10,6.DOI:10.13648/j.cnki.issn1674-0629.2017.07.002
特高压多端混合直流输电系统稳态控制策略
Steady-State Control Strategy of Multi-Terminal Hybrid UHVDC
摘要
Abstract
Comparing with the traditional two-terminal HVDC, multi-terminal hybrid HVDC can realize multi-source supply and multi-receiving end, and the loss and cost are relatively low, which offers a more flexible transmission method.In this paper, the characteris-tics of multi-terminal hybrid HVDC are introduced.Different control modes and operation modes are design.Steady-state control strategy is also designed to coordinate LCC and VSCs at each sides.Moreover, considering the characteristic of series connection of high/low voltage valve groups of UHVDC, the valve group balancing control is designed.A simulation model is established in PSCAD/EMTDC, smooth start-up, shut-down and steady-state operation are achieved, and the validity of the proposed strategy is verified.关键词
特高压多端混合直流输电/高低阀组串联/裕度控制/特高压柔性直流/稳态控制Key words
multi-terminal hybrid UHVDC/series connection of high/low voltage valve groups/margin control/VSC-UHVDC/steady-state control分类
信息技术与安全科学引用本文复制引用
黄伟煌,许树楷,黄莹,李明,刘涛..特高压多端混合直流输电系统稳态控制策略[J].南方电网技术,2017,11(7):5-10,6.基金项目
南方电网公司科技项目(ZBKJXM20170070).Supported by the Science and Technology Project of China Southern Power Grid (ZBKJXM20170070). （ZBKJXM20170070）
