论文信息 - A New Approach to E.H.V. Direction Comparisn Protection Using Digital Signal Processing Techniqles

A New Approach to E.H.V. Direction Comparisn Protection Using Digital Signal Processing Techniqles

Some problems concerning the performance of superimposed component directional relays are discussed, and it is shown that the basic directional criteria can be violated due to travelling wave phenomena or for fault occurrence approaching a voltage zero. A relay design is developed using digital signal processing techniques to overcome these problems. Tlhe complete relay is tested using a typical 40OkV transmission line application.

[1] K.L. Hicks,et al. Feasibility and Economics of Ultra-High-Speed Fault Clearing , 1980, IEEE Transactions on Power Apparatus and Systems.

[2] M. Vitins,et al. A Fundamental Concept for High Speed Relaying , 1981, IEEE Transactions on Power Apparatus and Systems.

[3] A. T. Johns,et al. New ultra-high-speed directional comparison technique for the protection of e.h.v. transmission lines , 1980 .

[4] M. Chamia,et al. Ultra High Speed Relay for EHV/UHV Transmission Lines -- Development, Design and Application , 1978, IEEE Transactions on Power Apparatus and Systems.

[5] L. M. Wedepohl. Application of matrix methods to the solution of travelling-wave phenomena in polyphase systems , 1963 .

[6] M. T. Yee,et al. Ultra High Speed Relay for EHV/UHV Transmission Lines -- Installation-Staged Fault Tests and Operational Experience , 1978, IEEE Transactions on Power Apparatus and Systems.