CAJ | 학술논문

近期一些学者提出基于零序直流原理的单分支故障电缆测距模型存在较大的误差,本文在对其理论分析的基础上对系统建模进行了改进,进而减小了误差.同时在分析检测电流与电网各参数之间关系的基础上提出了一种新的测距方法,该测距方法和其他方法相比,从理论上消除了过渡电阻和电网电压波动等因素的影响,且具有简单易实现等优点.并通过仿真验证了此方法的正确性与可行性,为进一步研究更加精确的基于零序直流原理的电缆测距方法奠定了基础.
근기일사학자제출기우령서직류원리적단분지고장전람측거모형존재교대적오차,본문재대기이론분석적기출상대계통건모진행료개진,진이감소료오차.동시재분석검측전류여전망각삼수지간관계적기출상제출료일충신적측거방법,해측거방법화기타방법상비,종이론상소제료과도전조화전망전압파동등인소적영향,차구유간단역실현등우점.병통과방진험증료차방법적정학성여가행성,위진일보연구경가정학적기우령서직류원리적전람측거방법전정료기출.
@@@@In allusion to the error of the model for Single-phase grounding ranging based on the principle of Zero-sequence DC this papaper improves the theory of system modeling, so that the error between of the actual value and experimental value is smaller. The paper also analyzes the relationship between zero sequence DC and the parameters and proposes a new location method which avoids the voltage fluctuation and the transition resistance fluctuation. The simulation shows that the validity and feasibility of the method are useful for further study of the more accurate location method.