IJESRT INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY TRANSMISSION LINE FAULT ANALYSIS BY USING MATLAB SIMULATION (original) (raw)

TRANSMISSION LINE FAULT ANALYSIS BY USING MATLAB SIMULATION

Now-a-days the demand of electricity or power are increases day by day this results to transmits more power by increasing the transmission line capacity from one place to the other place. But during the transmission some faults are occurred in the system, such as L-L fault (line to line), 1L-G fault (single line to ground) and 2L-G fault (double line to ground). These faults affect the power system equipments which are connected to it. The main aim of this paper is to study or analysis of various faults and also identifies the effect of the fault in transmission line along with bus system which is connected to transmission line. This paper approaches to the MATLAB software in which transmission line model is designed and various faults will be occurred by using fault tool box which has discussed above. After that, various effects on bus system due to different faults are shown such as voltage, current, power along with the positive, negative and zero sequence components of voltage and current output in terms of waveforms.

Matlab Simulation Based Study of Various Types of Faults Occurring in the Transmission Lines

International Journal of Engineering Research and, 2019

The main aim of the research work is to develop a MATLAB based Simulation model for analyzing 3-phase symmetrical and unsymmetrical faults. Generally these faults are occurred in the long transmission line system such as single line to ground fault (L-G), double line to ground (2L-G), triple line to ground fault (3LG) and Line to line fault (L-L). Fault analysis for different sorts of faults has been done and it impacts are appeared in simulation output e.g. voltage, current. This research approaches to the MATLAB software in which transmission line modal is simulated.

Three-Phase Fault Analysis on Transmission line In MATLAB SIMULINK

Abdullahi Afwah, 2019

Now-a-days the demand of electricity or power are increases day by day this results to transmits more power by Increasing the transmission line capacity from one place to the other place. But during the transmission some faults are occurred in the system, such as L-L fault (line to line), 1L-G fault (single line to ground) and 2L-G fault (double line to ground). These faults affect the power system equipments which are connected to it. The main aim of this paper is to study or analysis of faults and also identifies the effect of the fault in transmission line along with bus system which is connected to transmission line. Mainly the major faults in long transmission lines is (L-G) single line to ground fault which are harmful to the electrical equipment. A proposed model in transmission line is simulated in MATLAB software to analysis and identified the faults. Fault block was taken from the sim-power system block library. The whole modeling and simulation of different operating and different conditions of fault on transmission line, their faults are L-G fault, 2L-G fault, 3L-G fault and three line short circuit of the proposed work is presented in this paper. Keywords-L-L-Line to Line fault, 1L-G-Single Line to Ground fault, 2L-G Double Line to Ground fault.

Signal Behaviours of Power Transmission Line During Fault

Iconic Research and Engineering Journals, 2019

The consumption of electrical energy has continued to be on increase, following industrial, commercial and population growth. In order to supply constant power to consumers, reliability is an important factor that the electric utility needs to consider. Common disturbances on transmission lines resulting to different faults do affect the stability of electricity supply. Thus, this paper seeks to demonstrate the signal behaviours of power transmission line owing to disruptions caused by different categories of fault. The approach adopted here consists of using Simscape Power Systems tool available in Simulink environment to model 330kv transmission line and its simulation aided the sampling of voltage and current waveforms in transmission network on occurrence of various fault types. The results of the simulation tests indicated that the approach is reliable for identification of signal behaviour of a faulted transmission line. Indexed Terms: Transmission line, behaviour, current and voltage waveforms, symmetrical faults unsymmetrical faults

Analysis of Three-Phase Transmission Line Fault Using Matlab/Simulink

Analysis of Three-Phase Transmission Line Fault Using Matlab/Simulink, 2021

Faults affect the reliability of the power system network. The frequency and degree of faults determine the downtime (outage time) of a power system network. The more frequent fault occurs, the less reliable the power system is. To ensure a high degree of reliability and to provide quality service at a reduced cost to consumers, protection, and control of fault are required. Successful protection and regulation of faults in the power system demand adequate knowledge and analysis of faults. This research work deals with the analysis of faults in transmission lines using MATLAB/SIMULINK. In this research a 300KM transmission line model was developed, faults simulated and analyzed such as 1L-G, 2L-G, and 3L-G faults) during the simulation study of the various faults, the FFT tool was used to analyze the harmonic content of the various faults. The effect of faults was observed and discussed. A discrete powergui with sampling time Ts=5e-05s was used for the simulation study under various fault conditions.

Report THREE PHASE TRANSMISSION LINE FAULT ANALYSIS

TCRLS, 2020

Power transmission is a major issue in electrical engineering after power generation . Fault in transmission line is common and main problem to deal with in this stream . The faults occurring in power systems can be broadly classified into symmetrical faults and unsymmetrical faults, there is yet another classification of fault types namely, shunt type of faults and series type of fault ,in this paper we are analyzing only shunt type of faults, this shunt type of fault involve short circuit between the conductors and or between conductor and ground . They are characterized by increases in current and fall in voltage and frequency in faulted phase . The different kinds of shunt faults are single line to ground fault ,double line to ground fault and three line to ground fault .The study of these faults are necessary to ensure that reliability and stability of the power system. approaches MATLAB software in which user friendly tool box will assist using that transmission line model design and various fault time will be given with the help of signal builder .After that various effects on bus system due to different are shown such as voltage ,current and fault current output in terms of waveforms .By analyzing waveforms we can calculate which fault occurring is maximum and what are the safety measurement that we can include in the power system to overcome this fault.

BASIC MATLAB SIMULATION OF FAULTS WITHIN POWER SYSTEM

This paper reflect analytical and software study of power system faults. Majority of systems existing today are being computerized, Power system is not the exception to this fact. Hence by Software analysis we can reduce the time as well as the manpower required to determine the location as well as magnitude of faults occurring in electrical power system. This paper basically focus on the applicability of MATLAB simulation tool using which the fault analysis of real time power system structure can carried out. The main type of faults which occurs in power system such as Line to Line(LL),Double Line To Ground(LLG) ,Line To Ground(LG) are briefly discussed along with appropriate MATLAB simulation as well as the mathematical analysis. This paper can work as a fundamental block of much larger applications which involves the solutions developing a stable and efficient power system.

IJERT-Open Circuit Fault Analysis of Electrical Power System Using MATLAB

International Journal of Engineering Research and Technology (IJERT), 2014

https://www.ijert.org/open-circuit-fault-analysis-of-electrical-power-system-using-matlab https://www.ijert.org/research/open-circuit-fault-analysis-of-electrical-power-system-using-matlab-IJERTV3IS031578.pdf The present paper is devoted to study the behavior of power system under abnormal conditions of open circuit of transmission lines. Open circuit faults have been simulated on standard IEEE 11 bus system and 30 bus systems. State of the system before and after the fault has been estimated in terms of bus voltages and line losses by solving load flow. Newton-Raphson method is implemented using MATLAB to solve load flow problem. Open circuit conditions have been simulated on the lines one by one and their effect on the bus voltages has been observed and most critical lines are sorted out. To bring the voltages back within normal range, load shedding technique has been suggested. The criterion is to find the bus from which the load is to be shut down for the repairing time of the faulty line so as to bring the voltage magnitude within limits at other buses so that whole power system is avoided from ill-effects of fault. It is observed that line losses tend to increase due to fault but after load shedding these come within same range as before the fault. The analysis of a power system under open circuit faulty conditions is therefore important to determine the values of system voltages, so that protective measures are taken to minimize the harmful effects of such contingencies.

Transmission Line Fault Analysis using Bus Impedance Matrix Method

The fault analysis is done for the three phase symmetrical fault and the unsymmetrical faults. The unsymmetrical faults include single line to ground, line to line and double line to ground fault. The method employed is bus impedance matrix which has certain advantages over thevenin's equivalent method. The advantage of this approach over conventional method is to make the analysis of three typical un-symmetrical faults, namely single-line-to-ground fault, line-to-line fault and double-line-to-ground fault more unified. So it is unnecessary to cumbersomely connect three sequence networks when calculating the fault voltages at each bus and fault currents flowing from one bus to its neighboring bus.

Modeling and Computer Simulation of Fault Calculations for Transmission Lines

Calculation of transmission line faults has a fundamental importance in the fault detection, classification, and location determination of faults in transmission line. This paper presents a proposed computer program based on Matlab software to calculate all ten types of shunt faults that may occur in a transmission line. Various fault scenarios (fault types, fault locations and fault impedance) are considered in this paper. The inputs of the proposed program are line length, source voltage, positive, negative and zero sequence for source impedance, line charging, and transmission line impedance. The output of the algorithm is used to train an artificial intelligence networks to detect, classify and locate transmission lines faults. Simulation results have shown the effectiveness of the algorithm under the condition of all types of shunt faults.