CAJ | 학술논문

电力系统中单相电弧接地的情况会有很多危害，其中一种比较严重的后果就是过电压。本文针对单相电弧性接地会产生过电压的情况，利用Matlab/Simulink软件对该故障进行仿真。为了避免由此产生的过电压情况，本文在仿真环境中利用FFT（快速傅里叶变换）对结果进行分析，结果表明，该方法在电力系统的单相接地故障中能够有效识别该故障，对避免过电压引起的一系列反应具有很大的意义。
전력계통중단상전호접지적정황회유흔다위해，기중일충비교엄중적후과취시과전압。본문침대단상전호성접지회산생과전압적정황，이용Matlab/Simulink연건대해고장진행방진。위료피면유차산생적과전압정황，본문재방진배경중이용FFT（쾌속부리협변환）대결과진행분석，결과표명，해방법재전력계통적단상접지고장중능구유효식별해고장，대피면과전압인기적일계렬반응구유흔대적의의。
In the power system, the single-phase arc grounding is dangerous and one of the serious conse-quences is overvoltage. This paper, aiming at this problem, simulates the fault with Matlab / Simulink software. In order to avoid this situation, this paper uses FFT (Fast Fourier Transform) to analyze the results in the simulation environment. The results show that this method can effectively identify the fault if single-phase ground fault of the power system appear, which has a great significance to avoid a series of reactions caused by over-voltage.