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Full-Text Articles in Electrical and Electronics
Synchrophasor Assisted Efficient Fault Location Techniques In An Active Distribution Network, Anil Khanal
Synchrophasor Assisted Efficient Fault Location Techniques In An Active Distribution Network, Anil Khanal
Dissertations
Reliability of an electrical system can be improved by an efficient fault location identification for the fast repair and remedial actions. This scenario changes when there are large penetrations of distributed generation (DG) which makes the distribution system an active distribution system. An efficient use of synchrophasors in the distribution network is studied with bidirectional power flow, harmonics and low angle difference consideration which are not prevalent in a transmission network. A synchrophasor estimation algorithm for the P class PMU is developed and applied to identify efficient fault location. A fault location technique using two ended synchronized measurement is derived …
Energy Optimization Of A Free-Piston Enhanced Hybrid Vehicle, Kenneth Jarod Jones
Energy Optimization Of A Free-Piston Enhanced Hybrid Vehicle, Kenneth Jarod Jones
Dissertations
The world’s heavy dependence on vehicles which utilize hydrocarbon fuels as a primary power source has renewed the interest in electric and hybrid vehicles for industrial, commercial, and public use. The primary objective of this movement is centered on increased efficiency in energy usage for transportation. Hybrid vehicles which utilize an internal combustion engine as a linear generator, converting energy stored in hydrocarbon fuels into electrical power, could serve as a transitioning technology. The free-piston enhanced hybrid vehicle (FPHV) could potentially fill this role. The present work contains a theoretical and numerical approach to analyzing and optimizing the usage of …
Design And Implementation Of An X-Band Passive Rfid Tag, Praharshin Melaka Senadeera
Design And Implementation Of An X-Band Passive Rfid Tag, Praharshin Melaka Senadeera
Dissertations
This research presents a novel fully integrated energy harvester, matching network, matching network,matching network, matching network,matching network, matching network, matching network, multi-stage RF-DC rectifier, mode selector, RC oscillator, LC oscillator, and X-band power amplifier implemented in IBM 0.18-µm RF CMOS technology. We investigated different matching schemes, antennas, and rectifiers with focus on the interaction between building blocks. Currently the power amplifier gives the maximum output power of 5.23 dBm at 9.1GHz. The entire RFID tag circuit was designed to operate in low power consumption. Voltage sensor circuit which generates the enable signal was designed to operate in very low current. …