山东理工大学学报（自然科学版）
山東理工大學學報（自然科學版）
산동리공대학학보（자연과학판）
JOURNAL OF SHANDONG UNIVERSITY OF TECHNOLOGY(SCIENCE AND TECHNOLOGY)
2013年
5期
28-31
,共4页
ATP仿真%零模暂态能量%小电流接地系统%单相接地故障
ATP倣真%零模暫態能量%小電流接地繫統%單相接地故障
ATP방진%령모잠태능량%소전류접지계통%단상접지고장
ATP simulation%zero modal transient energy%non-effectively grounded system%sin-gle-phase earthed fault
为了提取小电流接地系统单相接地时故障线路和非故障线路的零模暂态能量值，利用电磁暂态程序A T P建立了仿真模型，借助M atlab程序设计得到了相应的零模暂态能量值。同时综合考虑不同接地过渡电阻、不同故障距离、不同故障初相角以及间歇性接地故障等多个因素，对小电流接地系统的单相接地故障进行了大量仿真。仿真分析结果表明：基于零模暂态能量的故障选线方法检测灵敏度高，不仅适用于中性点不接地系统，而且适用于中性点经消弧线圈接地系统及间歇性接地故障。
為瞭提取小電流接地繫統單相接地時故障線路和非故障線路的零模暫態能量值，利用電磁暫態程序A T P建立瞭倣真模型，藉助M atlab程序設計得到瞭相應的零模暫態能量值。同時綜閤攷慮不同接地過渡電阻、不同故障距離、不同故障初相角以及間歇性接地故障等多箇因素，對小電流接地繫統的單相接地故障進行瞭大量倣真。倣真分析結果錶明：基于零模暫態能量的故障選線方法檢測靈敏度高，不僅適用于中性點不接地繫統，而且適用于中性點經消弧線圈接地繫統及間歇性接地故障。
위료제취소전류접지계통단상접지시고장선로화비고장선로적령모잠태능량치，이용전자잠태정서A T P건립료방진모형，차조M atlab정서설계득도료상응적령모잠태능량치。동시종합고필불동접지과도전조、불동고장거리、불동고장초상각이급간헐성접지고장등다개인소，대소전류접지계통적단상접지고장진행료대량방진。방진분석결과표명：기우령모잠태능량적고장선선방법검측령민도고，불부괄용우중성점불접지계통，이차괄용우중성점경소호선권접지계통급간헐성접지고장。
Zero modal transient energy of single-phase to ground fault is used for the faulty line and the healthy line in non-effectively grounded system .The simulation model is established for electromagnetic transient program ATP .The zero modal transient energy can be obtained by de-signing Matlab program .Various factors ,such as different ground fault resistance ,fault distance , fault initial angle and intermittent fault ,should be put into overall consideration .T his paper gets the following conclusion :the sensitivity of detection method based on zero modal transient energy has high sensitivity .It is not only applicable to the isolated neutral system ,but also adaptable to peterson coil grounded system and intermittent fault .
