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Non-binary low-density parity-check codes have better communication performance compared to their binary counterparts but they suffer from higher complexity, especially for the check node processing. In this paper a sorting of the input vectors based on a reliability criteria is performed prior to the check node processing. This presorting process allows the Extended Min-Sum (EMS) check node process...
A prompt and accurate bulk system islanding detection capability is essential for real-time operation to maintain system reliability. This paper introduces and proposes two islanding detection methods, “Frequency Standard Deviation” and “Relative Phase Angle Change Rate” based on PMU measurement. The detailed analysis and explanation of the approaches to the design of islanding scheme is provided...
The application of communication and information technology in electrical utility makes consumers to be very comfortable. From the perspective of energy saving and power efficiency in Generation, Utility, Industry and homes an effective supervising of appliances is required. Now a day, smart grid conceptusing various cost effective communication technology and architecture proves electrical sector...
Recently, the PDP TV, WPT systems, etc. which radiates the electromagnetic fields of the frequency range below 30 MHz are widely provided. The measurement methods for electromagnetic interference or susceptibility generated by these devices are required, and the site validation methods are also required by the standardization. The reference site method (RSM) is an alter native method for the validation...
This document describes the usage and meaning of Energy Management Systems (EMS), applied both for utilities and end customers as a mean to supervise electricity usage and obtain energy savings. The approach also does a benchmarking on existing systems and appliances, together with the increasing usage of EMS in the newest smart grids.
Using a variety of digital modulation schemes for mobile communication technology, and despite the fact that these are serviced, the radiated immunity test based on IEC 61000-4-3 only has been performed using AM signal. In this study, we had performed the radiated immunity test using the digital modulation signals and an AM signal, and had investigated the impact of digitally modulated signals. The...
Traditionally, during a disaster response, primary reliance is on voice over radio communication along with pen and paper notes for situational awareness. This paper explores our research regarding emergency data interoperability, seeks to connect decision makers, operators/responders, and additional stakeholders through the development and application of standardized data messaging formats. In addition,...
With the recent emphasis on environmental issues and concerns for global warming, many states have adopted aggressive Renewable Portfolio Standards (RPS) requiring electricity suppliers to obtain a minimum percentage of their power from renewable energy resources by a given date. Among various states, California leads with an RPS of 20% by 2010, and 33% by 2020. Most renewable resources, by their...
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