Search Results - "Fischer, Normann"

Transmission Line Protection for Systems With Inverter-Based Resources - Part I: Problems by Chowdhury, Ritwik, Fischer, Normann

“…Inverter-based resources respond differently than synchronous generation sources during power system faults, challenging line protection reliability. To…”
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Transmission Line Protection for Systems With Inverter-Based Resources - Part II: Solutions by Chowdhury, Ritwik, Fischer, Normann

“…Inverter-based resources respond differently than synchronous generation sources during power system faults, challenging line protection reliability. Part I of…”
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Application of modern techniques for detecting subsynchronous oscillations in power systems by Yu Xia, Johnson, Brian K., Henian Xia, Fischer, Normann

“…Detecting Subsynchronous Resonance (SSR) in power systems in a secure, dependable and fast manner is a major challenge for steam turbine generator and doubly…”
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Restricted Earth Fault Protection in Low-Impedance Grounded Systems With Inverter-Based Resources by Chowdhury, Ritwik, Alla, Matchyaraju, Fischer, Normann, Samineni, Satish

“…A restricted earth fault (REF) protection element provides sensitive detection of ground faults near the neutral of a transformer or a generator. The…”
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A new method based on artificial neural network, Wavelet Transform and Short Time Fourier Transform for Subsynchronous Resonance detection by Xia, Yu, Johnson, Brian K., Jiang, Yazhou, Fischer, Normann, Xia, Henian

“…•Existing SSR detection methods are reviewed.•The performance and properties of various signal processing tools is evaluated.•Analyzed tools include wavelet…”
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Induction Motor Modeling for Development of a Secure In-Phase Motor Bus Transfer Scheme by Fischer, Normann, Johnson, Brian K., Miles, Andrew G., Law, Joseph D.

“…This paper presents techniques to model an induction machine during the transient periods of a motor bus transfer operation and then develops a more secure…”
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Single-Phase Transformer Inrush Current Reduction Using Prefluxing by Taylor, D. I., Law, J. D., Johnson, B. K., Fischer, N.

“…Power transformers can experience large inrush currents upon energization, the severity of which depends on the source strength, the leakage impedance and…”
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In phase motor bus transfer by Fischer, Normann

“…To increase the robustness of the electrical power supply to an industrial facility, two independent power supplies are typically routed to the facility. A…”
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Impacts of Superconducting Cables on the Dynamic Response of Current Transformers and Protective Relaying Devices by Johnson, B K, Fischer, N, Yu Xia

“…Replacing conventional ac transmission lines with superconducting cables provides performance advantages since superconducting cables have lower series…”
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Synchronous Generator Testbed for Parameter Estimation by Aljabrine, Abdulwahab, Johnson, Brian K., Fischer, Normann

“…This paper presents the development of a laboratory-scale testbed to investigate the behavior of synchronous generators under rated and abnormal operating…”
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Using the multi-loop fault analysis method for setting and evaluating generator protection elements by Chowdhury, Ritwik, Finney, Dale, Fischer, Normann

“…Stator winding interturn, interbranch, and series faults can result in large circulating currents in the faulted coils. Generator protection elements may not…”
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Performance comparison between Mho elements and incremental quantity-based distance elements by Benmouyal, Gabriel, Fischer, Normann, Smyth, Brian

“…Mho elements constitute the main component of transmission line protection in North America and many countries overseas. Distance elements based on incremental…”
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New protection scheme for type 4 wind turbines by Sathu, Shashidhar Reddy, Fischer, Normann, Johnson, Brian K.

“…The short circuit behavior of the early generation wind turbines depends solely on the physical characteristics of the machine. Conventional protection schemes…”
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Generator third-harmonic protection explained by Chowdhury, Ritwik, Finney, Dale, Fischer, Normann, Young, Jason

“…Because of the nature of stator winding construction, insulation failure typically results in a ground fault. Other failures - such as interturn, interbranch,…”
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Voltage and current inversion challenges when protecting series-compensated lines - A case study by Bakie, Eric, Westhoff, Curtis, Fischer, Normann, Bell, Jordan

“…In order to increase power transfer capabilities, Idaho Power is upgrading two existing 230 kV series-compensated transmission lines from 28 percent…”
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Online Characterization of a Synchronous Generator Using an Unscented Kalman Filter by Miles, Andrew G, Johnson, Brian K, Fischer, Normann

“…This paper presents techniques to characterize a salient pole synchronous generator while it is online. Due to the need for an accurate model of the power…”
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Do CTs like DC? Performance of current transformers with geomagnetically induced currents by Kasztenny, Bogdan, Fischer, Normann, Taylor, Douglas, Prakash, Tejasvi, Jalli, Jeevan

“…This paper analyzes the performance of current transformers (CTs) under the presence of geomagnetically induced currents (GICs). Our intent is to qualify the…”
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In phase motor bus transfer by Fischer, Normann

“…To increase the robustness of the electrical power supply to an industrial facility, two independent power supplies are typically routed to the facility. A…”
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Generator motoring protection - Are you protected? by Finney, Dale, Thompson, Michael, Fischer, Normann, Kalra, Amandeep

“…Steam turbines can be damaged upon loss of steam flow while the generator remains connected to the power system. Reverse power relays are used to detect the…”
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Understanding generator stator ground faults and their protection schemes by Klingerman, Nathan, Finney, Dale, Samineni, Satish, Fischer, Normann, Haas, Derrick

“…Because of stator winding construction, an insulation failure is more likely to result in a winding-to-ground fault than in a phase-to-phase fault. Other…”
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