Proceedings ArticleDOI
Recent developments in distance protection of compensated transmission lines
A.M. Purohit,V.N. Gohokar +1 more
- pp 1-6
TLDR
The merits and demerits of different methodologies to enhance distance protection of compensated transmission lines are highlighted.Abstract:
Growing dependence of modern society on electrical energy has resulted into increasingly complex nature of electrical power systems. It requires operation of the network closer to their stability limits. This leads to compensated transmission lines. Installing capacitors of fixed or controllable value provides a viable solution to improve power system stability and also to optimize power flow transmission capability of electrical grids transmission capability of power grid, optimize power flow and to improve system stability. However, installations of capacitors results into changing directions and values of fault currents and voltages in the networks. It causes problems for protective relays and fault locators. Distance relay is prone to maloperate due to large variations in voltage and current. Since fault location and classification are important tasks to safe guard electric power systems, as per the literature survey various practical or theoretical schemes are used to attain the reliable protection system for transmission lines equipped with compensation capacitors. This paper highlights merits and demerits of different methodologies to enhance distance protection of compensated transmission lines.read more
Citations
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Proceedings ArticleDOI
Importance of artificial neural networks for location of faults in transmission systems: A survey
Avagaddi Prasad,J. Belwin Edward +1 more
TL;DR: This survey presents the importance of artificial neural networks for fault location, because it has many advantages compared to other soft computing techniques namely fuzzy logic approach, wavelet technique, support vector machine and other conventional methods.
Journal ArticleDOI
Review of recent developments in distance protection of series capacitor compensated lines
TL;DR: A thorough literature survey of distance protection of series compensated lines, including a clear background of the problems that need to be solved, is conducted, limited to distance protection schemes that work with local measurements only.
Journal ArticleDOI
A Successive Geometric Segmentation Approach Applied to Double-Circuit Transmission Lines Fault Classification and Location
Wander Antunes Gaspar Valente,Leonardo de Mello Honório,Edimar J. de Oliveira,Daniele de Alcantara Barbosa,Elias R. Vilas Boas +4 more
TL;DR: The proposed technique is able to generate both the topology and the weighting of neural networks and indicates high accuracy rate to fault diagnosis in double-circuit transmission lines compared to other ANN-based approaches found in the literature.
References
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Book
Power System Protection
TL;DR: P.P. Anderson, a noted expert on power systems, presents an analytical and technical approach to power system protection, showing how abnormal system behavior can be detected before damage occurs, and points to effective control action to limit system outages.
Journal ArticleDOI
A Positive-Sequence Directional Relaying Algorithm for Series-Compensated Line
TL;DR: In this paper, a fault direction estimation technique for a series-compensated line using phase change in positive-sequence current and magnitude change in the positive sequence voltage at fault is proposed.
Journal ArticleDOI
A New Digital Distance Relaying Scheme for Compensation of High-Resistance Faults on Transmission Line
TL;DR: In this article, a new digital distance relaying scheme is proposed which compensates the errors produced by the conventional ground distance relay scheme using local-end data only, and the feasibility of the proposed scheme has been tested using MATLAB/SIMULINK software.
Journal ArticleDOI
A New Adaptive Distance Relaying Scheme for Mutually Coupled Series-Compensated Parallel Transmission Lines During Intercircuit Faults
TL;DR: In this article, the authors proposed an adaptive digital distance relaying scheme which takes care of all such abnormalities of the conventional ground distance relays and measures the correct value of impedance during phase-to-phase and phase to-phase to-ground intercircuit faults.