Topic
Fault indicator
About: Fault indicator is a research topic. Over the lifetime, 10057 publications have been published within this topic receiving 143482 citations. The topic is also known as: FCI & power line fault indicator.
Papers published on a yearly basis
Papers
More filters
••
TL;DR: In this article, a method for fault locating in HVDC transmission lines is proposed which only uses the voltage signal measured at one of the line terminals, in a relatively short-time window, is considered and the corresponding fault location is estimated based on the similarity of the captured voltage signal to existing patterns.
Abstract: In this paper, a method for fault locating in HVDC transmission lines is proposed which only uses the voltage signal measured at one of the line terminals. The postfault voltage signal, in a relatively short-time window, is considered and the corresponding fault location is estimated based on the similarity of the captured voltage signal to existing patterns. In this approach, the Pearson correlation coefficient is used to measure the similarity. Despite simplicity and low complexity of the proposed fault-location method, it does not suffer from the technical problems which are associated with the traveling-wave-based methods, such as the difficulty of identifying traveling wavefronts or the strong dependency of accuracy on the sampling frequency. Numerous training and test patterns are obtained by simulating various fault types in a long overhead HVDC transmission line under different fault location, fault resistance, and prefault current values. The accuracy of the proposed fault-location method is verified using these patterns.
107 citations
••
TL;DR: In this paper, an adaptive network-based Fuzzy inference system (ANFIS) is used to locate faults in a combined overhead transmission line with underground power cable using Adaptive Network-Based FuzzY Inference System (AN-FIS), which consists of three stages including fault type classification, faulty section detection and exact fault location.
107 citations
••
TL;DR: In this paper, a fail-safe design methodology for large-capacity lithium-ion battery systems is proposed. But, the proposed methodology is based on an internal short-circuit response model for multi-cell packs.
107 citations
••
TL;DR: In this article, a traveling-wave-based method for fault classification and localization for three-terminal power transmission systems is presented, where the discrete wavelet transform is utilized to extract transient information from the recorded voltages.
Abstract: This paper presents a traveling-wave-based method for fault classification and localization for three-terminal power transmission systems. In the proposed method, the discrete wavelet transform is utilized to extract transient information from the recorded voltages. Support-vector-machine classifiers are then used to classify the fault type and faulty line/half in the transmission networks. Bewley diagrams are observed for the traveling-wave patterns and the wavelet coefficients of the aerial mode voltage are used to locate the fault. Alternate Transients Program software is used for transients simulations. The performance of the method is tested for different fault inception angles, different fault resistances, nonlinear high impedance faults, and nontypical faults with satisfactory results.
107 citations
••
TL;DR: In this article, the authors proposed a comprehensive multi-terminal HVDC protection scheme based on artificial neural network (ANN) and high frequency components detected from fault current signals only.
106 citations