电力系统自动化2016，Vol.40Issue(13)：100-106,7.DOI:10.7500/AEPS20160103002
高压输电线路直流融冰装置故障特性及过流保护
Fault Characteristics and Overcurrent Protection of DC De-icer for High Voltage Transmission Lines
摘要
Abstract
DC de‐icing technology is the key technology for solving ice‐cladding problems of high voltage and extra high voltage transmission lines . The protection principles and scheme of DC de‐icer is the key technology of ensuring safe and reliable operation of the ice‐clad transmission lines and system . The DC de‐icing system and its protection configuration is described . The inadequacy of the selectivity of overcurrent protection are pointed out . Based on an in‐depth analysis of the fault characteristics of the converter and the converter transformer of the DC de‐icer , a new measure to ensure the reliability and selectivity of the overcurrent protection for DC de‐icer is proposed . PSCAD/EMTDC simulation software is used to simulate and test all kinds of faults , which has verified the validity and correctness of the new protection strategy .关键词
直流融冰/换流器过流保护/故障特性/过流相数保护Key words
DC de-icing/converter overcurrent protection/fault characteristics/phase number protection of overcurrent引用本文复制引用
李斌,邱宏,李博通,顾保全,张楠,唐金昆..高压输电线路直流融冰装置故障特性及过流保护[J].电力系统自动化,2016,40(13):100-106,7.基金项目
国家自然科学基金优秀青年基金资助项目（51422703）。 （）
