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>

scholarly journals Mal-Operation of Mho Relay In Transmission Line Due To Presence of TCSC

2019 ◽  
Vol 8 (3) ◽  
pp. 4328-4333
Keyword(s):  
Transmission Line ◽  
Fault Location ◽  
Reactive Power ◽  
Power Transmission ◽  
Transmission System ◽  
Simulation Software ◽  
Normal Operation ◽  
Distance Protection ◽  
Voltage Profile ◽  
Angle Variation

Distance protection is simple and it provides fast response to clear the fault. Distance protection is also providing primary and remote backup function depending upon distance of transmission line. Distance protection uses various relays like mho relay/admittance relay, impedance relay and reactance relay. In power transmission system, Flexible AC Transmission System (FACTS) controllers are used to increase power transfer capability and reactive power control, but distance relay get affected due to presence of FACTS devices. This may create the stability issues, security and it may affect on voltage profile. The changes in impedance level would affect the accuracy of distance protection. This paper represents the effect of TCSC on operation of mho relay in transmission line. The work presented here emphasis on the interaction of TCSC on distance protection and their performances under different condition i.e., load angle variation, variation of SCL, different fault location. Design and control performance of MHO relay during normal operation as well as during variation in different condition is verified by using PSCAD simulation software.

Determining the Accuracy Locating Faults in a Power-Transmission Line by an Artificial Short Circuit Method

2019 ◽  
Vol 90 (2) ◽  
pp. 147-151
Author(s):  
D. N. Gura ◽  
A. L. Korol’kov ◽  
V. M. Pastorov ◽  
V. M. Kozhevnikov
Keyword(s):  
Transmission Line ◽  
Power Transmission ◽  
Short Circuit ◽  
Power Transmission Line

Evaluation of Protective Relaying Reliability in Renewable Energy Environment

2017 ◽  
Vol 8 (2) ◽  
pp. 407
Author(s):  
Z. Hisham ◽  
H. Hashim ◽  
Z. Shukri ◽  
Z. Ishak
Keyword(s):  
Renewable Energy ◽  
Power Transmission ◽  
Short Circuit ◽  
Distance Protection ◽  
Protective Relaying ◽  
Power Sources ◽  
New Energy ◽  
Energy Environment ◽  
The Impact ◽  
Protection Engineering

<p>The decrement in supply of fossil fuel led to the exploration of new energy sources, which varies from wind energy to solar energy, which are known as Renewable Energy. The main problem with these power sources are the inconsistency of their energy that depends very much on the environmental factors. The embedment of these power sources onto conventional power transmission network would affect the sensitivity and reliability of protective relaying. Two different types of solar power plant connection to power system network are presented in this paper, namely Bus Connection and T-Off Connection. Computer Aided Protection Engineering (CAPE) software is used to model the networks being protected by distance protection, and simulate short circuit scenario. This paper specifically focuses on evaluating the impact of the in-feed current being contributed by both network configurations to the reliability of distance protection.</p>

An Intelligent Short-Circuit Fault Classification Scheme for Power Transmission Line

2021 ◽  
Author(s):  
Md. Sihab Uddin ◽  
Erphan Bhuiyan ◽  
Subrata Sarker ◽  
Sajal Das ◽  
Niloy Sarker ◽  
...  
Keyword(s):  
Transmission Line ◽  
Classification Scheme ◽  
Power Transmission ◽  
Short Circuit ◽  
Fault Classification ◽  
Power Transmission Line ◽  
Short Circuit Fault

Determination of the power transmission line ageing failure probability due to the impact of forest fire

2018 ◽  
Vol 12 (16) ◽  
pp. 3812-3819 ◽  
Author(s):  
Yufeng Guo ◽  
Runxin Chen ◽  
Jianguo Shi ◽  
Jie Wan ◽  
Hongliang Yi ◽  
...  
Keyword(s):  
Transmission Line ◽  
Forest Fire ◽  
Failure Probability ◽  
Power Transmission ◽  
Power Transmission Line ◽  
The Impact
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