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Full-Text Articles in Engineering
Determining Power System Fault Location Using Neural Network Approach, Edward O. Ojini
Determining Power System Fault Location Using Neural Network Approach, Edward O. Ojini
Theses and Dissertations--Electrical and Computer Engineering
Fault location remains an extremely pivotal feature of the electric power grid as it ensures efficient operation of the grid and prevents large downtimes during fault occurrences. This will ultimately enhance and increase the reliability of the system. Since the invention of the electric grid, many approaches to fault location have been studied and documented. These approaches are still effective and are implemented in present times, and as the power grid becomes even more broadened with new forms of energy generation, transmission, and distribution technologies, continued study on these methods is necessary. This thesis will focus on adopting the artificial …
Fault Location Techniques Using The Traveling Wave Method And The Discrete Wavelet Transform, Wesley Fluty
Fault Location Techniques Using The Traveling Wave Method And The Discrete Wavelet Transform, Wesley Fluty
Theses and Dissertations--Electrical and Computer Engineering
Fault location within electric power systems is an important topic that helps reduce outage duration and increases reliability of the system. This paper explores the topic of fault location using traveling waves generated by fault conditions and the discrete wavelet transform used for time-frequency analysis. The single-ended and double-ended traveling wave methods are presented and evaluated on a single circuit and double circuit 500kV system modeled using MATLAB SIMULINK. Results are compared on the basis of wavelet used for analysis, sampling rate, and fault resistance.
Investigation Of Protection Issues And Method For The Distribution System With Distributed Generations, Ke Xu
Theses and Dissertations--Electrical and Computer Engineering
Because DGs are introduced into distribution systems, the coordination of fuses and reclosers doesn’t work well. It means the original protection schemes are not available for the distribution systems with DGs. This thesis paper presents the study on the impacts of DGs on the fault current and voltage in the distribution system by the simulation of a model distribution system. After we study the impacts of DG on distribution systems, there is an introduction of current several current protection schemes and fault locations methods. At last, an adaptive protection scheme with a more efficient fault location method for the distribution …
Single Ended Traveling Wave Based Fault Location Using Discrete Wavelet Transform, Jin Chang
Single Ended Traveling Wave Based Fault Location Using Discrete Wavelet Transform, Jin Chang
Theses and Dissertations--Electrical and Computer Engineering
In power transmission systems, locating faults is an essential technology. When a fault occurs on a transmission line, it will affect the whole power system. To find the fault location accurately and promptly is required to ensure the power supply. In this paper, the study of traveling wave theory, fault location method, Karrenbauer transform, and Wavelet transform is presented. This thesis focuses on single ended fault location method. The signal processing technique and evaluation study are presented. The MATLAB SimPowerSystem is used to test and simulate fault scenarios for evaluation studies.