CAJ | 학술논문

在充分研究中性点经消弧线圈接地电网漏电电流分布特点基础上,重点研究了五次谐波特性,对零序电压、零序电流进行五次谐波提取并采用计算机控制来弥补其数量很小且幅值稳定性较差的缺点,通过总结传统谐波方向型漏电保护相关研究成果,并结合其存在的一些不足之处,从而提出了选择性动作于零序电流五次谐波的幅值和相位比较并以80C196为核心的微机应用系统来进行选择性漏电保护的新方案。
재충분연구중성점경소호선권접지전망루전전류분포특점기출상,중점연구료오차해파특성,대령서전압、령서전류진행오차해파제취병채용계산궤공제래미보기수량흔소차폭치은정성교차적결점,통과총결전통해파방향형루전보호상관연구성과,병결합기존재적일사불족지처,종이제출료선택성동작우령서전류오차해파적폭치화상위비교병이80C196위핵심적미궤응용계통래진행선택성루전보호적신방안。
Based on the distribution characteristics of leakage current of electric network of the neutral point grounding by arc-suppression coil,focusing on the five harmonic characteristics of zero sequence voltage,zero-sequence current,five harmonic extraction and use of computer control to compensate for its quantity is small and the amplitude stability is poor shortcomings,Base on the research results of traditional harmonic direction leakage protection and combined with its shortcomings,proposes Alignment at the result of compared with amplitude and phase about 5th harmonic of zero sequence current and take 80C196 as the core microcomputer application system.