Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 8 of 8 for “"Transmission Line Protection"”.
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Switch-on-to-fault scheme for transmission line protection
… maintain dependability and speed when closing a transmission line breaker onto a faulted line. This is accomplished by enabling overreaching directional and nondirectional protection elements for a short window of time shortly after the transmission line breaker closes. When line potential …
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Design and implementation of ANN based phase comparators applied to transmission line protection
… in the area of neural network based power system protection in the previous decade. Neural network technology has been applied for various protective relaying functions including distance protection. The reliability and efficiency of ANN based distance relays is improving with the developing …
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One-terminal traveling wave-based protection for HVAC and HVDC transmission lines
… developing one-terminal traveling wave-based transmission line protection methods for HVAC (High Voltage Alternating Current) and HVDC (High Voltage Direct Current) systems. It considers the effect of the sampling frequency on the protection, which until now has not been investigated for …
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A Novel Inverter Based Resource Control Strategy to Facilitate Utility-Scale Renewable Integration and Retain Existing Transmission Protection Infrastructure
… synchronous generators. The existing protection infrastructure for the North American transmission network was not designed with the behavior of these Inverter Based Resources (IBR) in mind. As IBR penetration continues to increase, the overall system behavior under faulted conditions …
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Wide Area Measurement Applications for Improvement of Power System Protection
… out to be more and more difficult due to reduced transmission capacity margins and increased stress on the system. Due to the heavy loading conditions that occur when the system is under stress, the protection systems are susceptible to mis-operation. It is under such severe situations that the …
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Geomagnetically induced currents (GIC) in large power systems including transformer time response
… disturbance (GMD). The flow of GIC through transmission lines and transformers across the power network could have severe consequences, if the magnitudes of the GIC are high enough. Problems that could arise from the flow of GIC in transmission networks include an increase in the amount of …
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Analysis of a Major Electric Grid – Stability and Adaptive Protection
… used extensively for the detection of faults on transmission lines. Out-of-step relays are used for generator protection to detect loss of synchronism conditions that result from disturbances on the electric grid. Also, when a disturbance occurs and generators may tend to lose synchronism with …
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Fault Identification of UPFC-Compensated Transmission Lines in Complex Microgrids Using an Intelligent Relaying Scheme Based on Discrete Wavelet Transform and ANN Classifier
… as modernization of the existing aging transmission and distribution systems. Microgrids allow integration of distributed energy resources (DER) such as wind farms (WF) and may utilize Flexible AC Transmission Systems (FACTS) such as Unified Power Flow Controller (UPFC). FACTS increase …