南方电网技术2017，Vol.11Issue(3)：6-12,24,8.DOI:10.13648/j.cnki.issn1674-0629.2017.03.002
馈入弱交流系统的直流输电换相失败恢复特性对 输电能力的影响分析
Analysis on the Influence of Commutation Failure Fault Recovery Characteristics of HVDC Connected to Weak AC System on Transmission Capability
洪潮1
作者信息
- 1. 直流输电技术国家重点实验室(南方电网科学研究院),广州510663
- 折叠
摘要
Abstract
A major problem in the operation of HVDC infeeded to a weak AC system is that the faults occurred in the receiving AC system may cause commutation failures of the inverters, and in the event of faults removal, the receiving system will be further weakened, so that the AC/DC system will be difficult to restore to a stable operation state, and even may lead to DC system blocking.Based on electromagnetic transient simulations, this paper studies the characteristics of commutation failures of a DC transmission system infeeded to a weak AC system induced by AC faults near the inverter station, as well as the fault recovery characteristics of the AC/DC system with further weakened receiving systems.The HVDC transmission capability of the steady-state operation is evaluated by the dynamic process of fault recovery.The analysis method can be used as an evaluation method to check the steady-state transmission capability of HVDC transmission systems in actual operations.关键词
直流输电/弱交流系统/换相失败/故障恢复/输送能力Key words
DC transmission/weak AC system/commutation failure/fault recovery/transmission capability分类
信息技术与安全科学引用本文复制引用
洪潮..馈入弱交流系统的直流输电换相失败恢复特性对 输电能力的影响分析[J].南方电网技术,2017,11(3):6-12,24,8.
