전력계통의 고임피던스 고장 검출 기법에 관한 연구

A Study on High Fault Detection In Power System

  • 임화영 (광운대 공대 제어계측공학과) ;
  • 유창완 (광운대 대학원 제어계측공학과) ;
  • 고재호 (광운대 대학원 제어계측공학과)
  • 발행 : 1999.01.01

초록

The analysis of distribution line faults is essential to the proper protections of the power system. A high impedance fault test, which was carried in Korean electric power systems, it was found that a arcing phenomenon occurred during the high level portion of conductor voltage in each cycle. In this paper, we propose a new method for detection of high impedance faults, which uses the arcing fault current difference during high voltage and low voltage portion of conductor voltage waveform. To extract this difference, we diveded one cycle fault current into equal spanned four data windows according to the magnitude of voltage waveform and applied fast fourier transform(FFT) to each data window. The frequency spectrum of current wavefrom in each portion are used as the inputs of neural network and is trained to detect high impedance faults. The proposed method shows improved accuracy when applied to staged fault data and fault-like load.

키워드

참고문헌

  1. IEEE Transactionson Power Apparatus and Systems v.101 no.6 Distribution High Impedance Fault Detection Utilizing High Frequency Current Components B. Mike Aucion;B. Don Russell
  2. Electric Power Research Institute Report EL-2430 High Impedance Fault Detection Using Third Harmonic Current Hughes Aircraft Co.
  3. IEEE Transactions on Power Delivery v.PWRD-2 no.2 Detection of Distribution High Impedance Faults Using Burst Noise Signals Near 60Hz B. Mike Aucion;B. Don Russell
  4. IEEE Transactions on Power Delivery v.PWRD-1 A Microprocessor-based Technique for Detection of High Impedance Faults S. J. Balser;K. A. Clements;D. J. Lawrence
  5. IEEE Trans. on Power Delivery v.3 no.4 Algorithm comparision for high impedance fault detection based on staged fault test Huand, C. L.;Chu, H. Y.;Chen, M. T.
  6. IEEE Trans. on Power Delivery v.4 no.1 A digital signal processing algorithm for detecting arcing faults on power distribution feeders Russel, B. D.;Chinchali, R. P.
  7. KEPCO Project Final Report, KRC-85A-JO5 A Study for the improvement of the protection relay scheme on multi grounded distribution system Kwon, W. H.;Lee, G. W.;Park, Y. M.
  8. IEEE Trans. on Power Delivery v.7 no.4 Detection of High Impedance Arcing Faults Using a Multi-Layer Perceptron A. F. Sultan;G. W. Swift;D. J. Fedirchuk
  9. IEEE Trans. on Power Delivery v.5 no.2 A Neural Network Approach to the Detection of Incipent Faults on Power Distribution Feeders S. Ebron;D. L. Lubkeman;M. White
  10. IEEE Trans. on Industry Application v.29 no.1 Microprocessor-Based Protection Relays: Design and Application Examples D. Baigent;E. Lebenhaft
  11. 기초 전력 공학 공동 연구소 중간 보고서, 96-중-01 배전자동화를 위한 적응보호시스템 연구 임화영;박찬국;류창완;고재호
  12. Proc. of EMPD '98 v.2 Detection of High Impedance Faults using Neural Nets and Chaotic Degree Ko, J. H.;Ryu, C. W.;Yim, W. Y.