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An innovative passive near-field 13.56 MHz RFID system for financial payment and national identity smartcard applications is presented. The system utilizes reactive coupling using a slit of defined width in a metal (copper) foil layer to concentrate surface eddy current density in the vicinity of a transponder having a laser-etched antenna structure.
Wind is being aggressively pursued as a potential source of renewable electric power. However, the principal difficulty when integrating wind power into the utility is one of controls. Regulating a power system to provide balance between source and load is challenging when a significant amount of generation is produced by variable sources. This has sparked a wave of research into the development of...
High penetration levels of stochastic renewable sources introduce variability into power systems that result in voltage and frequency regulation difficulties. As the cost of fossil fuels increase and governments mandate large renewable-energy portfolios, new engineering approaches will be necessary to compensate for this variable generation. Today renewable energy penetration levels are often limited...
This paper highlights several key aspects of introducing series compensation (SC) in the UK transmission network and those requirements which would require the use of thyristor controlled series capacitors (TCSC) rather than the simpler fixed series capacitor (FSC) option. The paper then indicates how the main component values can be derived, provided that a clear functional specification is provided...
This paper presents the methodology for conducting harmonic studies for offshore windfarms. The high level harmonic models used to represent wind turbine generators, dynamic reactive power compensation plant and background voltage distortions are explained. An example of the typical harmonic performance requirements imposed within wind farm connection conditions is given. Simulation results of the...
Ground combat vehicles may contain sensitive computational and communication equipment which produce heat that must be dissipated from the interior compartment. A need exists to introduce a cooling system to remove payload heat that offers acceptable performance and design packaging for harsh operating environments. This paper introduces a coolant rail augmented with phase change material heat sinks...
Series capacitor compensation has been predominantly used to enhance bulk power transfer and stability margin between large interconnected regions by partially compensating the inductive impedance of the transmission line. Nevertheless, the installation of this advanced technology could undermine the effectiveness of some conventional line protection. This paper highlights several challenges of protecting...
Verizon has an aggressive plan to deploy fiber in its access network. Verizon is investigating the use of optical switches to reduce costs and improve service quality. Applications and architectures, using optical switches, are evaluated.
Bandwidth demand in homes and businesses is steadily increasing. To meet this demand, Verizon is deploying an all fiber access network using a PON (Passive Optical Network) architecture. The network of the future needs to be robust and flexible. Verizon's FTTP (Fiber to the Premises) network provides Verizon the infrastructure to meet ever increasing bandwidth needs. Verizon's fiber-optic network...
We demonstrate the economic impact of automated fiber management (AFM) in FTTH networks, specifically to defer capital costs and reduce operating costs by automating testing, provisioning, maintenance, troubleshooting, and grooming operations.
An analytic and numerical scheme is developed to determine self-consistent equilibria in modified betatrons. As the beam accelerates over a time scale of many poloidal drift times, the equilibrium develops by passing through a sequence of time dependent equilibria. At any time, the equilibria are characterized by number of particles in a drift (Pθ) surface, and the toroidal flux through a Pθ surface...
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