Journal Article10.1016/0378-7796(90)90028-2
Walsh transform realization for microprocessor implementation of distance protection
P. Sharma,J. Henry,S.I. Ahson +2 more
4
TL;DR: Simple computational procedures, based on the fast Walsh-Hadamard transform (FWHT), for real-time calculation of the fault impedance of transmission lines, are described.
read more
About: This article is published in Electric Power Systems Research. The article was published on 01 Oct 1990. The article focuses on the topics: Digital protective relay & Protective relay.
read more
Chat with Paper
AI Agents for this Paper
Find similar papers on Google Scholar, PubMed and Arxiv
Write a critical review of this paper
Analyze citations of this paper to find unaddressed research gaps
Citations
Design, implementation and performance evaluation of a new digital distance relaying algorithm
TL;DR: In this article, the authors present the design, simulation, implementation and performance evaluation of a computationally efficient and accurate digital distance relaying algorithm, which provides fast and accurate fault impedance estimates for the three-zone protection of transmission lines.
26
Real-time assessment of a symmetrical component and microcontroller based distance relay
TL;DR: Details of the design and implementation and real-time assessment of a microcontroller based digital distance relay that can be used for the protection of power transmission lines are presented.
9
An overview of the digital fault location algorithms for the power transmission line protection based on the steady-state phasor approaches
Bao Lian,Magdy M. A. Salama +1 more
TL;DR: In this paper, the effect of various algorithms on relay speed and accuracy is examined regarding the selection of the system model, the relaying function and the filtering technique, which is a key element in the digital relay for power transmission line protection.
5
A Novel Methodology for the Determination of Impulse Response Coefficients Applied to Transmission Line Protection Relays
John Morales,Flavio Quizhpi,Hector Villarroel-Gutierrez,Eduardo Muñoz,Eduardo Orduna,Ernesto Vasquez +5 more
TL;DR: A novel methodology for optimally determining coefficients that depend on the waveform structure analyzed, which is determined using variance as the metric is proposed and made an original contribution regarding protection relays.
References
Orthogonal transforms for digital signal processing
K. R. Rao,N. U. Ahmed +1 more
- 12 Apr 1976
TL;DR: The utility and effectiveness of these transforms are evaluated in terms of some standard performance criteria such as computational complexity, variance distribution, mean-square error, correlated rms error, rate distortion, data compression, classification error, and digital hardware realization.
935
Orthogonal Transforms for Digital Signal Processing
N. U. Ahmed,K. R. Rao,Lokenath Debnath +2 more
- 01 Jan 1979
TL;DR: A tutorial-review paper on discrete orthogonal transforms and their applications in digital signal and image (both monochrome and color) processing is presented.
774
•Book
Walsh functions and their applications
Kenneth G. Beauchamp,Lokenath Debnath +1 more
- 01 Jan 1975
390
Relaying a Three Phase Transmission Line with a Digital Computer
B. J. Mann,I. F. Morrison +1 more
TL;DR: In this paper, a digital computer program for the protection of a three-phase transmission line is described, which detects the presence of a disturbance, classifies the fault into one of six fault types and determines the modulus and phase of the impedance of the faulted line.
58
Application of Haar functions for transmission line and transformer differential protection
TL;DR: The development of algorithms, based on Haar functions, for extracting the desired frequency components from transient power-system relaying signals is presented and the applications of these algorithms to impedance detection in transmission line protection and to harmonic restraint in transformer differential protection are discussed.
22