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 11 of 11 for “"Rogowski coil"”.
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Design of feedforward active ripple filters for power converters
… active filter applications including a Rogowski-Coil sensor, a transformer sensor, a class A injector, and a current transformer based injector. The advantages, tradeoffs, and limitation of each approach are discussed in detail. This thesis also presents the design and evaluation of a …
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PCB-Embedded Phase Current Sensor and Short-Circuit Detector for High Power SiC-Based Converters
… inverter stage, high bandwidth, high performance Rogowski coil switch current sensors are employed. These sensor were embedded on the PCB and integrated on the gate driver. High bandwidth switch current sensor measurement is used for fast short-circuit detection and protection of the SiC MOSFET …
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High Bandwidth Rogowski Coils, Commutation Loop Stray Inductance, and the Si IGBT and the SiC MOSFET Based Hybrid Concept
… and solenoidal printed circuit board (PCB) Rogowski coils. The associated parameters of these Rogowski coils are meticulously extracted using ANSYS Q3D Extractor and subsequently measured with the Tektronix TTR500 vector network analyser (VNA). Following this, the thesis presents the design …
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Design and implementation of Silicon-Carbide-based Four-Switch Buck-Boost DCDC Converter for DC Microgrid Applications
… and off-state drain-source voltage sensors and Rogowski coil-based current sensors are embedded in the gate driver to minimize the requirement for external sensors, thus increasing the power density of the converter unit. Also, Rogowski-coil-based current protection and drain-source …
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Design and Characterization of a Coaxial Plasma Railgun for Jet Collision Experiments
… by analyzing diagnostic data collected from a Rogowski coil, interferometer, and photodiode. Peak line-integrated electron number densities of approximately 8 × 10<sup>15</sup> cm<sup>-2</sup> and jet velocities of tens of km/s are inferred from the data recorded from ten experimental pulses.
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Partial discharge measurements in high voltage motors.
… A study was therefore made on the use of the Rogowski coil for the non-invasive measurement of partial discharges. A partial discharge location system was developed based on the correlation of partial discharge pulses detected at the two ends of a motor phase winding. The performance of the …
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On-line measurement of partial discharges in high voltage rotating machines.
… small current pulses generated by PD using a Rogowski coil as a sensor has been investigated in this work. Dowding & Mills, who are commercially involved in the condition monitoring of rotating machines, currently use a system called StatorMonotor® for PD detection. The research is intended …
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Power Density Optimization of SiC-based DC/AC Converter for High-Speed Electric Machine in More/All-electric Aircraft
… and bandwidth. The first sensor, a PCB-based Rogowski coil, integrates with the gate driver and commutation loops, enhancing power density despite challenges in managing CM noise. The second sensor utilizes parasitic inductance in the power loop, with an integrator circuit and an adaptive …
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Synchronized Communication Network for Real-Time Distributed Control Systems in Modular Power Converters
… by the intelligent gate driver with integrated rogowski coil and field programmable gate array (FPGA). A novel distributed control architecture is proposed accordingly for SCC applications where the hybrid modulation function is shifted to the gate driver. The proposed distributed control …
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Development of high energy pulsed plasma simulator for plasma-lithium trench experiment
… calorimeter, optical emission measurement, Rogowski coil, flux loop, and fast ionization gauge are used to characterize the new device. A coaxial plasma gun is manufactured and installed in the previous theta pinch chamber. The plasma gun is equipped with 500 uF capacitor and a gas puff …
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Senzor proudu s digitalizovaným výstupním signálem
Cílem této bakalářské práce je nastudovat problematiku měření proudů v sítích nízkého napětí pomocí Rogowskeho cívky a podrobně se seznámit s požadavky na elektronický senzor proudu (ECT) s digitálním výstupem. Dále ověřit základní parametry Rogowskeho cívky jako senzoru proudu a vytvoření její …