中国石油大学学报（自然科学版）2017，Vol.41Issue(6)：166-170,5.DOI:10.3969/j.issn.1673-5005.2017.06.021
高压直流接地极对埋地管道的干扰及防护
Interference and protection of buried pipelines due to HVDC grounding electrode
摘要
Abstract
In order to study the rules of the interference and protection schemes of the high voltage direct current ( HDVC) on the buried pipelines, the process is simulated to study the effect of the electrical current on the pipe-to-soil potential. The electrode-to-pipe distance, insulating flange and catholic protection were simulated. The results show that the deviation of the pipe-to-soil potential increases with the increase of the current, and decreases first sharply and then slowly with the increase of the electrode-to-pipe distance. The protective scheme of insulating flange and catholic protection can protect the pipes in the isolation area, and can cause extra DC interference on pipes out of the isolation area. Therefore, for pipes in the DC in-terference area, under the condition of guaranteeing the maximal electrode-to-pipe distance, insulating flange and catholic protection can be adopted to protect pipes in the isolation area, and it is noted that the catholic protection system of pipes in the isolation area can cause extra DC interference on other pipes.关键词
高压直流/接地极/埋地管道/分段隔离/阴极保护Key words
high voltage direct current ( HVDC)/grounding electrode/buried pipe/insulating flange/catholic protection分类
矿业与冶金引用本文复制引用
杨超,李兆玲,杨任继,李自力,崔淦..高压直流接地极对埋地管道的干扰及防护[J].中国石油大学学报（自然科学版）,2017,41(6):166-170,5.基金项目
国家自然科学基金项目(51301201) （51301201）
山东省自然科学基金项目(ZR2013EMQ014) （ZR2013EMQ014）
