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 20 of 1490 for “"RTDS"”.
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Novel RTD-Based Threshold Logic Design and Verification
… emerging nanodevices, resonant tunneling diodes (RTDs) have demonstrated promising electronic features due to their high speed switching capability and functional versatility. Great circuit functionality can be achieved through integrating heterostructure field-effect transistors (HFETs) in …
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Real-time modeling, simulation and analysis of a grid connected PV system with hardware-in-loop protection.
… this thesis is the Real Time Digital Simulator (RTDS). Furthermore, the model is interfaced with protection relay testing equipment to simulate hardware-in-the-loop testing.
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Investigation of a new method for synchronous generator loss of excitation protection
… wasbuiltusing a Real Time Digital Simulator (RTDS) to simulate generator loss of excitation on a 2-bus and 9-bus system. The algorithm was then tested under various operating conditions (normal system conditions and disturbances). The advantages and drawbacks of the proposed algorithm are …
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A universal centralized protection scheme for feeders of AC microgrids using IEC-61869-9 digital instrument transformers
… through simulations, real-time experiments using RTDS®, and validation on the IEEE-9 bus system with inverter-based resources, a benchmark system by the National Renewable Energy Laboratory National Renewable Energy Laboratory (NREL). Comparative assessments with traditional methods underscore the …
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Attack resilient GPS based timing for phasor measurement units using multi-receiver direct time estimation
… grid testbed using Real-Time Digital Simulator (RTDS) to demonstrate the impact of jamming, meaconing (i.e., record-andreplay attack) and satellite data-level anomalies on PMUs. Later, we utilize our power grid testbed to validate the attack-resilience of our proposed MR-DTE algorithm in …
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Non-pilot Protection of the HVDC Grid
… tests using an enhanced version of the RTDS platform indicate that the developed HVDC grid relay meets all technical requirements including speed, dependability, security, selectivity, and robustness. Moreover, the developed protection algorithm does not impose considerable computational …
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A Local Measurement Based Protection Methodology for Initiating Controlled Islanding in Power Systems
… implemented in the real-time digital simulator (RTDS). These test cases are based on outages due to transmission line overload protection and generator OOS protection relays, which are modelled in RTDS. A commonly industry-used method, Quadrilateral blinder based OOS protection, is tested for the …
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ACCELERATED ZONE-2 TRIP ALGORITHM FOR A NON-PILOT DISTANCE RELAY
… generated by a real time digital simulator (RTDS) running a power system model. This DSP implementation also includes a simplified model of a distance relay. New developments in microprocessor-based relays (numerical relays) in terms of computing power and speed along with the simplicity of …
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Using imperfect semiconductor systems for unique identification
… characteristics of Resonant Tunneling Diodes (RTDs) were found to provide a simple measurement of the underlying quantum state electronically. • Optically ‐ Macroscopic thin films of the two‐dimensional material, MoS2, were created by the Langmuir‐Blodgett technique for the first time and have …
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Laminar fluid flow, particle transport and permeate flux behavior in crossflow membrane filters
… to be accurately predicted by trajectory theory. RTDs obtained in response to pulse inputs in slow axial crossflows and high permeation rates appear to reveal a minimum in back-transport for 7 $\mu$m particles in the range of experimental conditions investigated here. Back-transport of smaller …
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Application of chemical kinetic modeling to improve design and performance criteria for a practical incineration system
… of up to four distinct mixing zones. The RTDs, which were resolved from the tracer studies, further supported a multiple PSR model. A model was chosen based on the best fit to SO_2, tracer data and consistency with physical geometry, resulting flow patterns, and temperature measurements. A …
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Multi-Agent System Based Energy Management Controller for Microgrids
… HIL units to Real Time Digital Simulator (RTDS). The controller is interfaced to the real-time simulation testbed using Ethernet (Socket) protocol. The entire controller architecture is tested in real-time and the results are verified.
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Robust GPS-based timing for phasor measurement units based on single-receiver and multi-receiver position-information-aided vector tracking
… tests using a real-time digital simulator (RTDS) which demonstrate the impacts of an attack on a PMU's time source.
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The Modeling and Advanced Controller Design of Wind, PV and Battery Inverters
… platform based on Real Time Digital Simulator (RTDS).;This work also explores the operation and controller design of a microgrid consisting of a direct drive wind generator and a battery storage system. A Model Predictive Control (MPC) strategy for the AC-DC-AC converter of wind system is …
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Data-Driven Voltage Control of DERs Integrated Distribution Grids Using Deep Reinforcement Learning
… in tested using real-time digital simulator (RTDS). Through extensive simulations and comparative analyses, we showcase the superior performance of our DRL-based voltage control approach in comparison to traditional methods. The results underscore the potential of advanced machine learning …
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Evaporation from nanoporous membranes for high heat flux thermal management
… heaters and Resistive Temperature Detectors (RTDs) were deposited by e-beam evaporation and liftoff to heat the sample and measure the device temperature during experiments, respectively. Samples were experimentally characterized in a custom environmental chamber for comparison to the model …
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Transient stability assessment of hybrid distributed generation using computational intelligence approaches
… PMUs integrated in Real Time Digital Simulator (RTDS) were used to gather data for the real time training of the ANNs and the prediction of the Critical Clearing Time (CCT).
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Using positron emission particle tracking (PEPT) to investigate the motion of granular media in a laboratory-scale tumbling mill
… of routines for the further pre-processing of RTDs, as well as for the calculation of angular measures about an arbitrary axis in space. Finally, I further extended this set of routines for application to tumbling mills. My tumbling mill analysis includes the identification of charge features …
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Residence time investigation of artificial silver ores in heap leaching using cyanide lixiviant
… the information obtained from the nonreactive RTDs into a distribution of parallel plug flow channels. The extent of reaction for each of these channels is derived from the surface reaction model for the individual size classes, put together for the corresponding PSD in each experiment. RTD …
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