scholarly journals Analysis of Polygonal Distance Protection Relay of Transmission Line Affected by SMES Device

2014 ◽  
Vol 58 ◽  
pp. 272-276
Author(s):  
Jun Yang ◽  
Wenjia Zhang
Keyword(s):  
Transmission Line ◽  
Distance Protection ◽  
Protection Relay ◽  
Distance Protection Relay

scholarly journals Modeling for Development of Simulation Tool: Impact of TCSC on Apparent Impedance Seen by Distance Relay

2018 ◽  
Vol 8 (5) ◽  
pp. 3332-3337
Author(s):  
N. M. Khoa ◽  
D. D. Tung
Keyword(s):  
Transmission Line ◽  
Power Transmission ◽  
Short Circuit ◽  
Simulation Software ◽  
Voltage Source ◽  
Power Transmission Line ◽  
Distance Protection ◽  
Protection Relay ◽  
The Impact ◽  
Distance Protection Relay

The impact of thyristor controlled series capacitor (TCSC) on distance protection relays in transmission lines is analyzed in this paper. Voltage and current data are measured and collected at the relay locations to calculate the apparent impedance seen by distance protection relays in the different operating modes of the TCSC connected to the line. Short-circuit faults which occur at different locations on the power transmission line are considered in order to locate the fault for the purpose of evaluating the impact of TCSC on the distance protection relay. Matlab/Simulink simulation software is used to model the power transmission line with two sources at the two ends. Voltage source, transmission line, TCSC, voltage and current measurement, and discrete Fourier transform (DFT) blocks are integrated into the model. Simulation results show the impact of TCSC on the distance protection relay and determine the apparent impedance and fault location in the line.

scholarly journals A Study of SVC’s Impact Simulation and Analysis for Distance Protection Relay on Transmission Lines

2017 ◽  
Vol 7 (4) ◽  
pp. 1686
Author(s):  
Ngo Minh Khoa ◽  
Nguyen Huu Hieu ◽  
Dinh Thanh Viet
Keyword(s):  
Transmission Line ◽  
Transmission Lines ◽  
Power Transmission ◽  
Power Transmission Lines ◽  
Distance Protection ◽  
Protection Relay ◽  
Impact Simulation ◽  
Relay Location ◽  
Measured Impedance ◽  
Distance Protection Relay

<p>This paper focuses on analyzing and evaluating impact of a Static Var Compensator (SVC) on the measured impedance at distance protection relay location on power transmission lines. The measured impedance at the relay location when a fault occurs on the line is determined by using voltage and current signals from voltage and current transformers at the relay and the type of fault occurred on the line. The MHO characteristic is applied to analyze impact of SVC on the distance protection relay. Based on the theory, the authors in this paper develop a simulation program on Matlab/Simulink software to analyze impact of SVC on the distance protection relay. In the power system model, it is supposed that the SVC is located at mid-point of the transmission line to study impact of SVC on the distance relay. The simulation results show that SVC will impact on the measured impedance at the relay when the fault occurs after the location of the SVC on the power transmission line.</p>

Development of Adaptive Distance Relay for STATCOM Connected Transmission Line with Wavelet Transform and ANN

2014 ◽  
Vol 705 ◽  
pp. 237-242
Author(s):  
Ramchandra P. Hasabe ◽  
Anil P. Vaidya
Keyword(s):  
Neural Network ◽  
Wavelet Transform ◽  
Transmission Line ◽  
Fault Location ◽  
Reactive Power ◽  
Distance Protection ◽  
Distance Relay ◽  
Protection Relay ◽  
Distance Protection Relay ◽  
Transmission Line Protection

A new scheme to enhance the solution of the problems associated with Transmission line protection with Statcom connected is presentedin this paper.Static Synchronous Compensator (STATCOM) is a shunt type FACTS device connected at the midpoint of the transmission line to maintain the voltage atdesired level by injecting/absorbing the reactive power. This connection affects the performance of distance protection relay during line faults. Thefault detectionis carried out byusingenergy of the detail coefficients of the phase signals and artificial neutral network algorithm used for fault distance location for all thetypes of faults for transmission line. For each type of fault separate neural network is prepared for finding out the fault location.

A Distance Protection Relay for a 1000-kV UHV Transmission Line

2008 ◽  
Vol 23 (4) ◽  
pp. 1795-1804 ◽  
Author(s):  
Z.Y. Xu ◽  
S.F. Huang ◽  
L. Ran ◽  
J.F. Liu ◽  
Y.L. Qin ◽  
...  
Keyword(s):  
Transmission Line ◽  
Distance Protection ◽  
Protection Relay ◽  
Distance Protection Relay

scholarly journals Effect Evaluation of Fault Resistance on the Operating Behavior of a Distance Relay

2018 ◽  
Vol 8 (3) ◽  
pp. 2975-2980
Author(s):  
K. H. Le ◽  
P. H. Vu
Keyword(s):  
Transmission Line ◽  
Distance Protection ◽  
Protection Relay ◽  
Simulink Model ◽  
Fault Resistance ◽  
Building Process ◽  
Proposed Model ◽  
Impedance Calculation ◽  
Distance Protection Relay ◽  
Types Of Faults

This paper presents an application of a certain distance protection relay with a quadrilateral characteristic approach for the protection of the 110kV Duy Xuyen - Thang Binh transmission line in Vietnam using measured data from one terminal line. We propose the building process of a Matlab Simulink model for this relay that combines fault detection and classification block, apparent impedance calculation block for all types of faults and a trip logic block of three zone protection coordination. The proposed relay model is further tested using various fault scenarios on the transmission line. It is important to assess what happened, the actual conditions, the causes of mal-operation etc. Detailed explanation and results indicate that the proposed model behavior will help users to perform tests which correctly simulate real-world conditions besides that it properly interprets test results and troubleshoot distance function problems when results are not as expected.

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