电力系统保护与控制Issue(24)：1-7,7.
特高压直流输电线路接地极线路高阻故障测距方法研究
Research on fault location algorithm for HVDC electrode line high impedance fault
张怿宁 1束洪春 2田鑫萃 2董俊 3李晋伟1
作者信息
- 1. 超高压输电公司检修试验中心，广东 广州 510663
- 2. 昆明理工大学电力工程学院，云南 昆明 650051
- 3. 哈尔滨工业大学电气工程与自动化学院，黑龙江 哈尔滨 150001
- 折叠
摘要
Abstract
HVDC grounding electrode line is different from normal DC transmission line. Normally, the average of voltage and current are small, beside the address electrode resistor is small, so that make the DC grounding electrode lines fault location difficult. Many simulations show when grounding electrode line is fault and the ground resistance is greater than or equal to the address electrode resistor, then little current flows into fault point. The fault point voltage is not the minimum for the distribution of voltage along the line but the address electrode voltage. So the fault location algorithm based on the equal of fault point voltage has greater error. A new fault location method which can withstand high impedance based on voltage equal at pole point is presented. Many simulations show that the algorithm can accurate position the electrode line.关键词
接地极线路/故障测距/沿线电压分布/高阻故障Key words
HVDC electrode line/fault location/voltage distribution along/high impedance fault分类
信息技术与安全科学引用本文复制引用
张怿宁,束洪春,田鑫萃,董俊,李晋伟..特高压直流输电线路接地极线路高阻故障测距方法研究[J].电力系统保护与控制,2015,(24):1-7,7.
