CAJ | 학술논문

小电流接地系统故障如果不能及时切除，有可能进一步扩大为相间短路故障，对电力系统造成重大损失。本文以Matlab软件Simulink和SimPowerSystem工具箱为平台，对小电流接地系统中性点不接地方式的单相接地故障进行建模，并利用零序电流的幅值、相位判别出故障线路和故障相，从而验证了零序电流比幅比相法对中性点不接地方式单相接地故障判别的有效性。
소전류접지계통고장여과불능급시절제，유가능진일보확대위상간단로고장，대전력계통조성중대손실。본문이Matlab연건Simulink화SimPowerSystem공구상위평태，대소전류접지계통중성점불접지방식적단상접지고장진행건모，병이용령서전류적폭치、상위판별출고장선로화고장상，종이험증료령서전류비폭비상법대중성점불접지방식단상접지고장판별적유효성。
The small current grounding System fault if not removed in time, there may be a further expand the short-circuit fault for alternate with, to power System caused heavy loss based on the Matlab software Simulink and SimPower System toolbox for platform, in the small current grounding System non-ground neutral way one-phase ground fault model, and by using the amplitude of zero sequence current phase discrimination fault line and the fault phases, which testified the zero sequence current ratio than the method of photograph of non-ground neutral way one-phase ground fault the effectiveness of discrimination.