Temperature-dependent transmission line models for electric power systems and their impacts on system studies

2021 ◽  
Author(s):  
Valentina Cecchi
Keyword(s):  
Power Systems ◽  
Transmission Line ◽  
Electric Power ◽  
Electric Power Systems ◽  
Temperature Dependent ◽  
Transmission Line Models

scholarly journals A Modular Neural Network Scheme Applied to Fault Diagnosis in Electric Power Systems

2014 ◽  
Vol 2014 ◽  
pp. 1-13
Author(s):  
Agustín Flores ◽  
Eduardo Quiles ◽  
Emilio García ◽  
Francisco Morant ◽  
Antonio Correcher
Keyword(s):  
Fault Diagnosis ◽  
Power Systems ◽  
Power System ◽  
Transmission Line ◽  
Electric Power ◽  
Diagnostic System ◽  
Specific Area ◽  
Electric Power Systems ◽  
Electric Power System ◽  
Power Network

This work proposes a new method for fault diagnosis in electric power systems based on neural modules. With this method the diagnosis is performed by assigning a neural module for each type of component comprising the electric power system, whether it is a transmission line, bus or transformer. The neural modules for buses and transformers comprise two diagnostic levels which take into consideration the logic states of switches and relays, both internal and back-up, with the exception of the neural module for transmission lines which also has a third diagnostic level which takes into account the oscillograms of fault voltages and currents as well as the frequency spectrums of these oscillograms, in order to verify if the transmission line had in fact been subjected to a fault. One important advantage of the diagnostic system proposed is that its implementation does not require the use of a network configurator for the system; it does not depend on the size of the power network nor does it require retraining of the neural modules if the power network increases in size, making its application possible to only one component, a specific area, or the whole context of the power system.

scholarly journals Application of ANFIS for Distance Relay Protection in Transmission Line

2015 ◽  
Vol 5 (6) ◽  
pp. 1311 ◽  
Author(s):  
Azriyenni Azriyenni ◽  
Mohd Wazir Mustafa
Keyword(s):  
Power Systems ◽  
Transmission Line ◽  
Electric Power ◽  
Relay Protection ◽  
Electric Power Systems ◽  
Power Delivery ◽  
Alternative Solution ◽  
Distance Relay ◽  
Channel Spacing ◽  
Line Identification

The techniques hybrid intelligent was introduced in transmission protection that usage in electric power systems. There was applied ANFIS for distance relay protection particularly for transmission line. If a fault occurs during the transmission line identification caused by unwanted fault thus the power delivery to the consumer becomes not going well. Therefore, it would need to provide an alternative solution to fix this problem. The objective of this paper uses impedance transmission line to determine how long the channel spacing will be protected by distance relay. It has been distance relays when fault occurs in transmission line with the application Sugeno ANFIS. The simulation shows it excellent testing results can be contributed to an alternate algorithm that it has good performance to protecting system in transmission line. This application used by using software Matlab.

scholarly journals A Python-Based Interface Design for Electric Power System Education.

2021 ◽  
Vol 4 (1) ◽  
pp. 163-168
Author(s):  
Yousef Marwan Alkhanafseh ◽  
Tahir Cetin Akinci
Keyword(s):  
Power Systems ◽  
Transmission Line ◽  
Electric Power ◽  
Interface Design ◽  
Electrical Engineering ◽  
Electric Power Systems ◽  
Electric Power System ◽  
Correct Result ◽  
Analysis Program ◽  
Energy Transmission

Python, which is widely used today, is one of the open-source programming languages. In the Python program, its interface is done through the PyQt5 library. With PyQt5, it is possible to develop object-based software that takes up less space on the disk and runs faster. In this study, an educational calculation and analysis program (ITUPSA) was designed for the Electric power systems course using the Python interface. Electric power systems are one of the fundamental courses in electrical engineering. This main course is taught in three sub-course groups as energy transmission-distribution, energy flow and energy economy. The energy transmission-distribution course package constitutes the first and most comprehensive part of the electric power systems group. In the energy transmission-distribution, the creation of the transmission line model and the calculation of the line parameters form an important part of the training. This section contains very detailed mathematical calculations and it is very important that students get the correct result as a result of these calculations. This can be possible with a lot of practice. The interface design was made by students and faculty to teach practical examples correctly. This developed (ITUPSA) python-based interface program is very suitable for calculation and analysis exercises in both undergraduate and graduate courses in the Electrical Engineering department. The purpose of this study is to create a python-based interface in order to solve the problems related to these lines, to make the types of short, medium and long power transmission lines correct and understandable. In the study, after selecting the type of energy transmission line and all parameters related to the line, the necessary mathematical analysis can be made and also the analysis results can be plotted. The analysis program is available in two languages, English and Turkish.

scholarly journals MODELLING OF 4-PHASE POWER LINE

2020 ◽  
Vol 2018 (1) ◽  
pp. 161-162
Author(s):  
Van Le ◽  
Ngok Buy
Keyword(s):  
Power Systems ◽  
Transmission Line ◽  
Electric Power ◽  
Electric Power Systems ◽  
Power Line ◽  
Phase Transmission

The paper presents methods of modeling of multiphase electric power systems. Simulated 4-phase transmission line.

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