SEARCH ENGINEERING RESEARCH PAPERS

fault in transmission line detection and prevention



Transmission line fault detection phase selection using ANN
free download

Abstract A novel application of neural network approach to protection of transmission line is demonstrated in this paper. Different system faults on a protected transmission line should be detected and classified rapidly and correctly. This paper presents the use of neural

Identification of fault types for single circuit transmission line using discrete wavelet transform and artificial neural networks
free download

Abstract:This paper proposes a new technique using discrete wavelet transform (DWT) and artificial neural network for fault classifications on single circuit transmission lines. Simulations and the training process for the artificial neural network are performed using

Research of Impact of Location of Transmission Line Fault on the Quality of ADSL Service
free download

Abstract:this paper researches the impact of location of copper transmission line fault on the quality of ADSL service. Galvan connection of two wires which are built in single transmission line between themselves, which is reflected in professional work as

New approach for fault location on transmission lines not requiring line parameters
free download

Abstract:This paper presents a new numerical algorithm for fault location on transmission lines. It does not require line parameters, which is a radical step forward compared to the existing approaches, which require this information, so the algorithm can be considered

Differential equation based fault location algorithm for series-compensated transmission line
free download

Abstract A new one-end fault location algorithm designated for series-compensated transmission lines is delivered in this paper. It is based on differential equation approach, which allows good reflection of the dynamic phenomena relevant for faults occurring

Selection of proper artificial neural networks for fault classification on single circuit transmission line
free download

Abstract. This paper proposes a new technique using discrete wavelet transform (DWT) and artificial neural networks for fault classification on single circuit transmission line. Simulation and the training process for the artificial neural networks are performed using ATP/EMTP

Evaluation of transmission line fault-locating techniques using variance-based sensitivity measures
free download

Abstract Computation of distance to fault on a transmission line is affected by: assumptions in modelling, factors reflecting system operating conditions, and measurement system characteristics. All these factors are subject to many sources of uncertainty including

A closed-form solution for transmission-line fault location without the need of terminal synchronization or line parameters
free download

Abstract:This letter introduces a novel method for fault location in alternate current transmission lines where neither the line parameters nor terminals synchronization is needed. As opposed to the previous works, it introduces a closed-form solution instead of

An iterative inversion method for transmission line fault location
free download

ABSTRACT This dissertation discusses various transmission line forward modeling techniques in both time and frequency domains. Although time domain methods offer simplicity in most cases, the computational inefficiency and lack of fidelity make these

Estimation of transmission line parameters using fault records
free download

ABSTRACT In this paper an innovative algorithm for the transmission line parameter estimation is presented. The important factors, such as synchronisation, processing of non- stationary signals and phasor estimation that are affecting the estimation accuracy have

A novel technique for the location of fault on a HVDC transmission line
free download

ABSTRACT This paper presents Mathematical Morphological applications to assess the performance of High Voltage Direct Current system. The satisfactory performance of this system is one of the necessary conditions to obtain uninterrupted power supply as it is

Development of an Accurate Transmission Line Fault Locator Using the Global Positioning System Satellites
free download

Abstract A highly accurate transmission line fault locator based on the traveling wave principle has been developed and successfully operated within BC Hydro. A transmission line fault produces a fast rise time traveling wave at the fault point which propagates along

Effects of transmission line modeling on fault location
free download

Abstract This paper deals with the technique designated to location of faults in untransposed lines. The algorithm capable locating faults in both a single line and parallel lines arrangement has been presented. ATP-EMTP has been used to generate reliable fault

Impact of SSSC on Measured Impedance in Single Phase to Ground Fault Condition on 220 kVTransmission Line
free download

Abstract This paper presents and compares the impact of SSSC on measured impedance for single phase to ground fault condition. The presence of Static Synchronous SSSC on a transmission line has a great influence on the ZRelay in distance protection. The

Effects and mitigation of post-fault commutation failures in line-commutated HVDCtransmission system
free download

Abstract-This work analyzes post-fault commutation failures and their effects in a thyristor based line commutated HVDC link. Simulation results of the example case available in PSCAD reveal these failures. Two schemes have been suggested to mitigate these

A New Fault Location Algorithm for Compensated Transmission Line Using Distributed Time Domain Model
free download

Abstract: This paper presents an accurate fault location algorithm for compensated transmission line. The distributed time domain model is used for modelling of the transmission line. This algorithm does not utilize the compensated device model and does

Fault location algorithm for three-terminal transmission lines: distributed time domain linemodel
free download

Abstract-Conventional fault location methods using one-terminal voltages and currents are not applicable to multi-terminal transmission lines. However, for determination of fault location in three-terminal lines at least voltages and currents of two terminals are

A pattern recognition system for fault analysis in TCSC based transmission line
free download

The proposed algorithm has been implemented on transmission line with TCSC for ten types of fault using PSCAD/EMTDC. In Decision Tree (DT) has been used for fault section identification and fault classification in transmission line including FACTS device.

Fault loop impedance analysis for a transmission line with series capacitors and their overvoltage protection
free download

Abstract:This paper analyses the issues of protective relaying for a series compensated transmission line. Two conditional impedances of a fault loop have been proposed for use in the analysis of the overreaching phenomenon and in the distance relaying. The

Distance Protection Scheme For Protection of Long Transmission Line Considering the Effect of Fault Resistance By Using the ANN Approach
free download

Abstract-Traditional electromechanical distance relays used for protection of transmission lines are prone to effects of fault resistance. Each fault condition corresponds to a particular pattern. So use of a pattern recognizer can improve the relay performance. This paper

HVDC Transmission Line Fault Location Using Wavelet Feeded Neural Network Bank
free download

Abstract: This paper presents fault location in an HVDC transmission link. The fault location is done by using Radial basis neural networks. We present a new approach which uses a neural network bank for fault location. Each network is trained for locating a particular

Wavelet-based method for transmission line fault detection and classification during power swing
free download

ABSTRACT: Power swing caused by various disturbances will affect distance relay behavior and may result in relay misoperation. This paper provides a new wavelet-based method for detection and classification of transmission line faults during power swing. The multi-

Detection of Fault in Fixed Series Compensated Transmission Line during Power Swing Using Wavelet Transform
free download

Abstract-At the time of power swing the measured impedance lies inside the relay operating region. There is undesired tripping of Distance relay during power swing without having any fault. So relay must be blocked must trip after a fault occur during power swing. This

Fault location on double-circuit transmission line not requiring line parameters
free download

Abstract. A new impedance-based algorithm for fault location on overhead double-circuit lines is presented. To assure high precision for fault location the considered calculations are based on distributed-parameter line model and the line parameters are estimated.

The influence of corona effect on traveling wave based transmission line protection distance to fault error calculation
free download

Abstract: The future of smart grid protections is related to identification of fast electromagnetic transient in the electric grid. Many algorithms are developed over the world; however some physical processes are common for the overhead transmission line which

Discrete wavelet transform and support vector machines algorithm for classification of faulttypes on transmission line
free download

Abstract:This paper proposes a new technique using discrete wavelet transform (DWT) and support vector machines (SVM) to classify the fault types on transmission systems. The DWT is used to detect the high frequency components from fault signals. Positive

Identifying types of simultaneous fault in transmission line using discrete wavelet transform and fuzzy logic algorithm
free download

Abstract. In the literature for fault classification, several decision algorithms have different solutions and techniques. These research works have been rarely mentioned about simultaneous faults in transmission systems. This paper presents the decision algorithm

Distance protection algorithm for double-circuit transmission line with fault resistance compensation
free download

Abstract This paper presents an adaptive method for non-pilot distance protection of a double-circuit transmission line. It exhibits improved operation under resistive unsymmetrical faults involving ground. As a result of applying the proposed adaptive impedance

Presentation of a Fault detecting Method for Power Transmission Line using M-sequence
free download

Abstract: The method of pinpointing the place of the abnormalities of a power transmission system analyzes the voltage and the current information from the both ends of a power line [1-2]. Now, there are only current and a voltage measuring instrument every about 20km,

Lightning detection improvement FALLS brought to Eskom's transmission line design andfault analysis
free download

Lightning contributes around 24% to Eskom Transmission's total transmission line faults. Measures have been taken over the past decades to combat this effect of lightning on the performance of high voltage transmission lines and these measures are usually taken

ATP-EMTP evaluation of a new fault location algorithm for three-terminal transmission lines without knowing line parameters
free download

Abstract This paper presents a new algorithm for locating faults in three-terminal transmission lines without requiring line parameters. The voltages and currents from all terminals are taken as inputs and no synchronization is needed. The proposed algorithm

Fault location algorithm for three-terminal transmission lines: Distributed time domain line model
free download

Abstract-Conventional fault location methods using one-terminal voltages and currents are not applicable to multi-terminal transmission lines. However, for determination of fault location in three-terminal lines at least voltages and currents of two terminals are

lnter-Circuit Fault Location Algorithm for Two-Parallel Transmission Line
free download

Abstl 'aCt: A novel numerical algorithm of fault location estimation for four line fault without ground connection involving phases from each of the parallel lines is presented in this paper. It is based on onrrtenninal voltage and current data. The loop and nodal equations

Wavelet-Based Transmission Line Fault Analysis
free download

Abstract:this paper focused on identification of simple power system faults using wavelet based analysis of transmission line parameter disturbances. The major faults in transmission lines are line to ground fault, line to line fault and three phase faults. These faults can be

SYNCHRO PHASOR BASED TRANSMISSION LINE FAULT LOCATION TECHNIQUE
free download

Abstract: Now a days the power system structure is growing continuously. So the reliability has become a big task for the protection engineers. This paper presents a fast and accurate fault detection technique which is very much useful for reliable operation of the power

A Comparison of Transmission Line Fault Detection Methods
free download

Abstract--Nowadays, the on-line monitoring of electric power systems has motivated several studies toward performing real time implementations and evaluations of fault detection methods. The aim of this paper is to present details about real-time implementations of two

AND DETERMINATION OF VOLTAGE-FAULT-LOCATION AND LINE-FAULT-LOCATION (LENGTH OF LINE) ON LONG TRANSMISSION-LINE (200 MILE= 320
free download

Abstract Fault location and fault-voltage problems have been presented as a major challenge in electrical power system analysis, most of these methods uses voltage and currents measurements at either one ends or both ends of a transmission line. This work

Accurate Distance Protection Scheme for Transmission Line Fault Location Considering the Impact of Shunt Connected STATCOM
free download

Abstract: The presence of FACTS devices such as a shunt-connected STATCOM on a transmission line has a great impact on the measured impedance at the relaying point which in turn affects the performance of the relay. This paper describes a new and accurate

PERFORMANCE EVALUATION OF FAULT LOCATION ALGORITHM FOR PROTECTION OF SERIES COMPENSATED TRANSMISSION LINE
free download

ABSTRACT In this paper, performance evaluation of different schemes for location of fault in series compensated transmission lines are presented. A fault location algorithm using two end measurements and another fault location algorithm using one end measurements for

Fault Tree-Based Reliability Assessment of a 132-kV Transmission Line Protection Scheme
free download

Abstract:-The reliability of a power system network depends greatly on the performance of the protection system. Improving the reliability of the protection scheme of the transmission lines will enhance the overall reliability of the power system network. The focus of this

A Transmission Line Fault Classification Approach by Support Vector Machines
free download

Abstract: This paper presents an approach for shunt faults detection and classification in transmission line using Support Vector Machine (SVM). The paper compares between using three line post-fault current samples for one-half cycle and one-fourth cycle from the

High-Speed and High-Resistance-Tolerance Fault Component Ground Distance Relay for UHV Double-Circuit Transmission Line
free download

Abstract: UHV AC double-circuit transmission line is of its distinct characteristics of distributed parameters, as a result of large distributed capacitance and long transmission distance. The traditional distance protection has inherent defect when used in UHV

Transmission System On Line Fault Location Using ArtificialNeural Network
free download

Abstract In this work, protection systems for overhead transmission lines are investigated and an efficient technique for on line fault location based on Artificial Neural Network (ANN) is suggested. First, Studying and investigating the power transmission lines short circuit

Context-Aware Query for High-Voltage Transmission Line Fault Detection using Wireless Sensor Network
free download

Abstract:Due to vandalism or weather conditions, disruption or damage in high voltage transmission line insulators may occur, causing a risk to the electricity supply for many cities. Studies show that the insulators states can be known by the value of the leakage current

Identifying Fault in a Transient Harmonic Current Protection Scheme for HVDCTransmission Line
free download

Abstract: In this project, Based on the boundary characteristic of a dc line, the response of transient harmonic current in the linecommutated converter HVDC transmission system is analyzed under various fault conditions. The discrete Fourier transform is used to extract

Signal-Energy based Fault Classification of Single-Circuit Transmission Line using S-Transform and Neural Network
free download

Abstract:This paper presents a technique for diagnosis of the type of fault and the faulty phase on overhead transmission line. The proposed method is based on the multiresolution S-transform and Parseval's theorem. S-transform is used to produce instantaneous

A Novel Application of Neural Networks to Locate Fault Distance in a Double End FedTransmission Line
free download

Abstract: Distance relays are used for protection of transmission lines. These relays have been reported to have problems of under-reach, over-reach and mal-operation due to the high impedance fault (HIF). Different system faults on a protected transmission line should

A New Fault Identification Method for HVDC Transmission Line
free download

Abstract: This paper presents a transient based fault identification for High Voltage Direct Current (HVDC) system. Characteristics of the HVDC system during internal and external fault are studied. Variation of transient energy and the relation between various

Fault Detection and Classification in Transmission line using DWT and ANFIS Techniques
free download

Abstract: This paper proposes Discrete Wavelet Transform (DWT) and Adaptive Neuro- Fuzzy Inference System (ANFIS) techniques for fault detection, classification and detection of faulty phase in the transmission line. The detection is done by computing the energy

Design and Analysis of Hybrid Power System with Fault Detection and Removal Capability inTransmission Line
free download

Abstract Renewable energy technologies are suitable for off-grid services, serving the remote areas without having to build or extend expensive and complicated grid infrastructure. Therefore standalone system using renewable energy sources have

Study on Suppression of Secondary Arc Current under Different Fault Locations for High Voltage Transmission Line
free download

ABSTRACT: In super/extra high-voltage systems, voltage levels are much higher and transmission lines are much longer, so it makes burning times of secondary arc current become longer, thus reduces the successful rate of single-phase auto reclosing. When

ACCURATE FAULT LOCATION IDENTIFICATION ON SERIES COMPENSATED TRANSMISSION LINE
free download

Abstract:-Series capacitors (SCs) are installed on long Transmission lines to reduce the inductive reactance of the lines. SCs and their associated over-voltage protection devices like metal oxide visitors, and/or air gaps creates several problems for distance relays and

METHODS FOR TRANSMISSION LINE FAULT LOCATION
free download

Abstract: Transmission lines are used to transmit electric power to distribution centers and to load centers. The main fault location methods are impedance and travelling wave method Travelling wave method for location of fault on transmission line is better than Impedance

High speed transmission line fault classification using an Elman neural network
free download

Abstract: Detection and classification of a fault on a transmission line is essential to the proper performance of a power system. It would be desirable to develop a high speed and accurate approach to determine the fault type for different power system conditions. To

A Novel Neural Network Fault Location Approach for Transmission Line Distance Protection
free download

Abstract This paper presents a new approach to locate shunt faults in power transmission lines using a two-layer Adaptive Linear Neural Network (ADALINE) in a two-end protection scheme. First, a transmission line with actual parameters is simulated in the

Wavelet-Based ANN Approach For Fault Detection Classification and Location inTransmission line
free download

Abstract A new approach of digital relays for transmission line protection is presented. The proposed technique consists of a preprocessing module based on Discrete Wavelet Transforms (DWTs) in combination with an artificial neural network (ANN) for detecting

Differential Equation Based Fault Location Method for HVDC Transmission Line
free download

Abstract:This paper proposes a novel differential equation based fault location algorithm for high voltage DC (HVDC) transmission lines. The fault is located using voltage and current measurements at two terminals of the faulted line during the fault occurrence. This

Wavelet-FFNN based Fault Location Estimation of a Transmission Line
free download

Abstract In order to maintain the quality power supply and reliable operation of power delivery service to the utilities with minimum interruption, it is extremely important that the

DISTANCE PROTECTION OF HVDC TRANSMISSION LINE WITH NOVEL FAULT LOCATION TECHNIQUE
free download

Abstract This paper presents a novel method for locating faults using setting point voltage and current data. The line model used is based on the frequency dependent parameter model and it is distributed in to two parts: Distributed Parameter model and Compensation

TO ESTIMATE THE FAULT IN TRANSMISSION LINE USING HAAR FUNCTION
free download

Abstract In order to estimate the fault occurrence quickly and fast identification of the type of fault, the algorithm based on Haar function is proposed herewith. In this paper, the sine and cosine Fourier co-efficient are expressed in terms of Haar co-efficient. The Haar co-

The Combination of Discrete Wavelet Transform and Self Organizing Map for Identification ofFault Location on Transmission Line
free download

Abstract:In the literature for fault location, Artificial neural networks (ANNs) have been reported. At the present time, unsupervised learning is not well understood. This paper proposes a new algorithm for identifying fault location on transmission lines, using

Fault Diagnosis of a High Voltage Transmission Line using Waveform Matching Approach
free download

ABSTRACT This paper is based on the problem of accurate fault diagnosis by incorporating a waveform matching technique. Fault isolation and detection of a double circuit high voltage power transmission line is of immense importance from point of view of Energy

Identification and Classification of Fault in an EHV Transmission line using S-Transform and Neural Network
free download

ABSTRACT: This paper presents a technique for diagnosis of the type of fault and the faulty phase on overhead transmission line. The proposed method is based on the multiresolution S-transform and Parseval's theorem. S-transform is used to produce instantaneous

Non-Invasive Transmission Line Fault Identification and Location Detection
free download

Abstract This project explores the theoretical application of a method of identifying and locating transmission line faults through the use of magnetic fields. Using Faraday's law and Ampère's law, this project demonstrates that transmission line faults can be detected and

Fault Detection and Classification in Transmission Line Using FPGA
free download

Abstract: This paper presents a hardware efficient logic for fault detection and classification in transmission line using wavelet transformation technique, kNN algorithm and implemented using a field-programmable gate array (FPGA). The general SPARTAN3E

Fault Detection and Fault Classification of Double Circuit Transmission Line Using Artificial Neural Network
free download

Abstract-Fault detection and classification plays a critical role in the protection. Accurate and fast fault detection, fault classification is important from the service restoration and reliability point of view. However in case of double circuit transmission line due to mutual coupling

Fault Detection Location on a Transmission line Using GPS Synchronized Phasor Measurement
free download

Abstract:In order to reduce damage of transmission line due to fault, reliable, high-speed, sensitive and dependable protection system is a primary requirement of today's interconnected power system. Accurate pin-pointing of fault location and diagnosis is also

ALGORITHM APPLYING SIGNALS OF CURRENT DIFFERENTIAL RELAYS OF DOUBLE-CIRCUIT SERIES-COMPENSATED TRANSMISSION LINE
free download

Abstract This paper presents an accurate fault location algorithm for a double-circuit series- compensated lines associated with current differential relays. Use of two-end currents and one-end voltage to fault location has been considered. The algorithm applies two

Discrete Wavelet Transform and Support Vector Machines Algorithm for Fault Locations on Single Circuit Transmission Line
free download

Abstract:This paper proposes a technique using discrete wavelet transform (DWT) and support vector machines (SVM) for fault location on single circuit transmission lines. The ATP/EMTP is used to simulate fault signals. The mother wavelet daubechies4 (db4) is

An accurate fault detection and location on transmission line using wavelet based on Clarke's transformation
free download

Abstract. This paper presents accurate fault detection and location using wavelet based on Clarke's transformation. This study was done using Clarke's transformation method to convert current phase (three phase) signal into a two-phase current alpha and beta (

Artificial Neural Network Based Fault Locator for Single Line to Ground Fault in Double Circuit Transmission Line
free download

Abstract: This paper presents the Artificial Neural Network based versatile relay to locate single line to ground fault in double circuit line irrespective of its transmission line parameters. The fundamental components of voltage and current signals measured at

FAULT CLASSIFICATION AND LOCATION ALGORITHM FOR SERIES COMPENSATED POWERTRANSMISSION LINE
free download

Abstract: This paper presents the development of an algorithm for solving the problem of fault location and classification in a power system by fast identifying and locating the possible faults The proposed method uses the samples of half cycle duration of three

System Modelling and Fault Analysis of a HVAC Transmission Line
free download

Abstract Electric power systems usually cover large geographical areas and transmission facilities are continuously increasing and often operate under harsh environmental conditions, which may prone to faults and system disturbances. Different types of studies

A Comparison of Different Mother Wavelet For Fault Detection Classification of Series Compensated Transmission Line
free download

Abstract This paper proposes a Comparison for Different Mother Wavelet For Fault Detection Classification of Series Compensated Transmission Line. Voltages and currents with fault signal can be properly analyzed by using the wavelet transform. However, the

SIMULATION OF FAULT DETECTION FOR PROTECTION OF TRANSMISSION LINE USING NEURAL NETWORK
free download

Abstract Transmission line among the other electrical power system component suffer from unexpected failure due to various random causes. Because transmission line is quite large as it is open in environment. A fault occurs on transmission line when two or more

An ANFIS based approach to improve the fault location on 110kV transmission line
free download

Abstract This paper provides an overview of the fault location task by single end based impedance method in Areva relay, its challenges, and describes the best established practices for an adaptive network based fuzzy inference system (ANFIS) based approach

FUZZY-LOGIC-BASED FAULT CLASSIFICATION FOR TRANSMISSION LINE PROTECTION
free download

ABSTRACT In this paper, an approach for fault classification of transmission line faults using fuzzy logic has been presented. This method is able to identify the single line to ground faults that may occur in a transmission line under different fault resistances, inception

Fault Detection and Fault Type Identification in Uncompensated and Series CompensatedTransmission Line Using Discrete Wavelet Transform
free download

Abstract:This paper presents a new method, which can provide protection to both uncompensated and fixed series compensated overhead transmission line with different level of compensations. It doesn't require any functional change while working with series

of the fault transient phenomena in an improved thyristor controlled series compensated transmission line model with particular reference to accurate fault
free download

Abstract-In this paper, a novel approach to analyse, extract and validate the key characteristics of the fault transient phenomena on a thyristor controlled series capacitor (TCSC) compensated transmission line is introduced. This method relies on utilising

POWER STABILITY OF 500/220/132 KV GRID STATION SYSTEM ON SINGLE-LINE-TO-GROUND FAULT AT 500KV TRANSMISSION LINES
free download

Abstract:Power transmission lines provide a link between generation center and end user in every country. These generation power unit are located at different location in country. In Pakistan the generation is provided by hydral unit mostly located at northern

IDENTIFICATION AND LOCATION OF FAULT ON A TRANSMISSION LINE USING WAVELET BASED ON CLARKE'S TRANSFORMATION
free download

ABSTRACT This paper presents a study on fault detection and location by using PSCAD to obtain the current signal in the transformation of signal interference. This study was done by using the Clarke's transformation method to transfer the current signal phase (three phase

Power Swing Protection of Series Compensated Transmission Line with Fault Detection Classification and Location
free download

Power swing is nothing but large disturbance of power or lost of equilibrium in the flow of power due to sudden change in system voltage and or current. During power swing if voltage and current chances with a frequency f, then the power will change with a

Phase to Ground Fault Analysis of a High Voltage Transmission Line Equipped with Resistive and Inductive SFCL
free download

Abstract. Advanced technologies in power electronics have always been a prominent factor in the development of new devices in power systems. Superconducting Fault Current Limiter (SFCL) can be regarded as a key component for future electric power systems. It is


FREE ENGINEERING RESEARCH PAPERS