This paper describes two hardware prototypes and estimation schemes for determining the parameters of a simple, physically based, point-of-use electric utility model using transient measurements. Parameters of the utility model are estimated using data collected by the prototypes. Frequency-dependent effects observed in previous work in this area are modeled. Performance of the techniques given...

Due to its rapid speed of information spread, wide user bases, and extreme mobility, Twitter is drawing attention as a potential emergency reporting tool under extreme events. However, at the same time, Twitter is sometimes despised as a citizen based non-professional social medium for propagating misinformation, rumors, and, in extreme case, propaganda. This study explores the working dynamics...

This paper focuses on the regulation of electricity distribution business. First, regulation principles of natural monopolies are discussed in general level. Second, different methods used to regulate the electricity distribution business in some European countries are introduced. Third, regulatory models used in Finland, Norway and Sweden are discussed in detail. The roles of efficiency benchm...

In this paper, a wavelet-based neural network classifier for recognizing power quality disturbances is implemented and tested under various transient events. The discrete wavelet transform (DWT) technique is integrated with the probabilistic neural network (PNN) model to construct the classifier. First, the multi-resolution analysis (MRA) technique of DWT and the Parseval’s theorem are employed...

Power quality issues can affect the performance of devices powered by grid and can, in severe cases, permanently damage connected devices. Events that power include sags, swells, waveform distortions transients. Transients are one most common disturbances caused lightning strikes or switching activities among power-grid-connected systems reach very high magnitudes, their duration spans from nan...

asha, meaning order and honesty as apposed to anarchy and hypocrisy is the most significant principle of the anciant persian religion . there are some events and tales they are coloured by the asha principle . the manifestation of asha in such cases is the result of a certain religious experience known as the exegetic experience . the exegetic experience is in fact a religious interpretation an...

Emerging Power Quality Problems and State of The Art Solutions T HIS SPECIAL SECTION is intended to address emerging power quality problems due to integration of largescale photovoltaic and wind systems, concepts of smart grid, vehicle to grid, increased reliance on power electronic devices/equipment in residential, commercial and industrial domains, etc. Further, it aims at providing advanced ...