scholarly journals A Review of Fault Diagnosing Methods in Power Transmission Systems

2020 ◽  
Vol 10 (4) ◽  
pp. 1312 ◽  
Author(s):  
Ali Raza ◽  
Abdeldjabar Benrabah ◽  
Thamer Alquthami ◽  
Muhammad Akmal
Keyword(s):  
Fault Detection ◽  
Power Systems ◽  
Transient Stability ◽  
Power Transmission ◽  
Fault Classification ◽  
Comprehensive Understanding ◽  
Power Transmission Systems ◽  
Reduction Methods ◽  
Location Methods ◽  
Signal Processing Methods

Transient stability is important in power systems. Disturbances like faults need to be segregated to restore transient stability. A comprehensive review of fault diagnosing methods in the power transmission system is presented in this paper. Typically, voltage and current samples are deployed for analysis. Three tasks/topics; fault detection, classification, and location are presented separately to convey a more logical and comprehensive understanding of the concepts. Feature extractions, transformations with dimensionality reduction methods are discussed. Fault classification and location techniques largely use artificial intelligence (AI) and signal processing methods. After the discussion of overall methods and concepts, advancements and future aspects are discussed. Generalized strengths and weaknesses of different AI and machine learning-based algorithms are assessed. A comparison of different fault detection, classification, and location methods is also presented considering features, inputs, complexity, system used and results. This paper may serve as a guideline for the researchers to understand different methods and techniques in this field.

Classification of Faults in Power Transmission Systems Using Modern Techniques

2017 ◽  
pp. 181-203 ◽  
Author(s):  
Avagaddi Prasad ◽  
J. Belwin Edward ◽  
K. Ravi
Keyword(s):  
Power Systems ◽  
Power System ◽  
Major Part ◽  
Power Transmission ◽  
Fault Classification ◽  
Transmission Systems ◽  
Technical Literature ◽  
Industrial Facilities ◽  
Protection Scheme ◽  
Power Transmission Systems

Power system constitute a major part of the electrical system relating in the present world. Every single portion of this system assumes a major part in the accessibility of the electrical power one uses at their homes, enterprises, workplaces, industrial facilities and so on. Any deficiency in power system causes a ton of inconvenience for the maintenance of the system. So transmission system needs a proper protection scheme to ensure continuous power supply to the consumers. The countless extent of power systems and applications requires the improvement in suitable techniques for the fault classification in power transmission systems, to increase the efficiency of the systems and to avoid major damages. For this purpose, the technical literature proposes a large number of methods. This chapter analyzes the technical literature, summarizing the most important methods that can be applied to fault classification and advanced technologies developed by various researchers in power transmission systems.

scholarly journals Development of Floquet Multiplier Estimator to Determine Nonlinear Oscillatory Behavior in Power System Data Measurement

Energies ◽  
2019 ◽  
Vol 12 (10) ◽  
pp. 1824
Author(s):  
Namki Choi ◽  
Hwanhee Cho ◽  
Byongjun Lee
Keyword(s):  
Power Systems ◽  
Power System ◽  
Time Series Data ◽  
Power Transmission ◽  
Orbital Stability ◽  
Oscillatory Behavior ◽  
Series Data ◽  
Floquet Multipliers ◽  
Model Free ◽  
Power Transmission Systems

Measurement-based technology has been developed in the area of power transmission systems with phasor measurement units (PMU). Using high-resolution PMU data, the oscillatory behavior of power systems from general electromagnetic oscillations to sub-synchronous resonances can be observed. Studying oscillations in power systems is important to obtain information about the orbital stability of the system. Floquet multipliers calculation is based on a mathematical model to determine the orbital stability of a system with the existence of stable or unstable periodic solutions. In this paper, we have developed a model-free method to estimate Floquet multipliers using time series data. A comparative study between calculated and estimated Floquet multipliers has been performed to validate the proposed method. The results are provided for a sample three-bus power system network and the system integrated with a doubly fed induction generator.

Controlling STATCOM by Full Order State Feedback Controller for Stability Improvement

2018 ◽  
pp. 227-254
Author(s):  
Champa Nandi ◽  
Ajay Kumar Chakraborty
Keyword(s):  
Power Systems ◽  
Transmission Lines ◽  
State Feedback ◽  
Reactive Power ◽  
Power Transmission ◽  
Feedback Controller ◽  
Mathematical Explanation ◽  
State Feedback Controller ◽  
Facts Controllers ◽  
Power Transmission Systems

Today's power systems have been extended due to interconnections with the neighboring systems. Energy cost is increasing due to greater sensitivity of new transmission lines. These have demanded the search of new controllers. These objectives were met by reactive power control on transmission lines. Hence, FACTS controllers are becoming an important part of the modern power transmission systems. Different control techniques are in use with STATCOM to generate control signals. But the conventional controllers like P; PI provide a slow dynamic response during the fault condition. This chapter creates an awareness of control issues and proposes an observer-based state feedback controller for STATCOM. The mathematical explanation of the observer-based state feedback controller for STATCOM is presented. Simulations have been carried out with one case study in MATLAB/SIMULINK environment. The simulation results show that the observer-based state feedback controller gives better performance than conventional PI controller during contingency condition.

scholarly journals Self-Regulating Line Fault Detection and Location in Transmission Lines

2020 ◽  
Vol 9 (1) ◽  
pp. 2540-2544
Keyword(s):  
Fault Detection ◽  
Power Systems ◽  
Transmission Line ◽  
Optical Fibers ◽  
Transmission Lines ◽  
Data Transmission ◽  
Power Transmission ◽  
Power Delivery ◽  
Climatic Fluctuations ◽  
Human Labor

In the present time scenario, where we use cables and optical fibers for data transmission along with power transmission, locating the flaws and faults in the transmission lines has become a necessity. Transmission lines are among the essential fragments of power systems. Being exposed to climatic fluctuations makes them the most vulnerable fragment. There may be numerous reasons that originate faults in the lines, such as temperature escalation, lightning strokes, even drizzles and fog because insulated carriers to wear out mechanically. It is indispensable to locate the fault point to restore the power at the earliest. Excellence in power delivery is achieved only if the time enforced in determining the flaw point in the line is limited. Accordingly, an authentic access is essential to figure out the literal location of the fault in the transmission line. This project introduces an accurate and adequate approach for determining the location of the line fault. It illustrates how the use of GSM and GPS along with ARDUINO UNO can relatively reduce the human labor and increase the accuracy whilst downsizing the obligatory time.

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