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According to the simulation experiment of high voltage cable defect, the simulation platform of high voltage cable is designed and built. The simulation platform includes booster unit, cable model unit, up flow unit and control unit, and integrates partial discharge, temperature, grounding current online monitoring device. The simulation platform can simulate and analyze all kinds of main insulation,...
MV switchgear are important pieces of the overall electrical distribution networks in public and industrial applications. Predictive maintenance of electrical switchgear involving condition monitoring has long been in practice. Recent improvements in the condition monitoring technology now allow for more data collection and trend analysis. This paper reviews various condition monitoring technologies...
Although governments have spent a great deal of effort to provide safer road networks, surface defects such as potholes, suck-in manholes, and defective street cuts are still commonly found on roads. The current methods of road surface monitoring depend on reports from drivers. However, these methods usually incur a long delay and thus it is difficult to obtain up-to-data information on road conditions...
Recently Vehicle's black box for accident analysis is mainly based on the camera that images are stored. However the issues such as sudden unintended acceleration type are insufficient for analysis. Because of the information collected by various sensors on the basis of analysis will be available is a vehicle accident. This paper will show how to build a system get the basic information to monitor...
As the most important equipment in substation, it is necessary to make power transformer intelligence firstly in smart grids construction. According to the basic specifications of intelligent machine, i.e., visualization condition, networking control and automation, this paper presents the overall framework of a developed intelligent system for an 110kV power transformer. The structural function definition,...
In this paper, we present AdaptSens: a reliable data collection and storage system for solar-powered sensor networks. Unlike battery-operated devices, solar-powered systems have a less predictable energy supply and their ability to harvest energy depends on past spending, thereby creating incentives for adaptive matching of energy supply and demand. Our storage system is novel in its layered architecture...
A new design proposal of real-time power quality monitoring and analysis platform based on virtual instruments technology is proposed that aims at the key issues that affecting the quality of rural power network. From steady-state to transient-state, this article discusses the typical algorithms of harmonic analysis, voltage deviation and unbalance in three-phase, voltage swells and dips, voltage...
We consider the problem of detecting a source with a scalar intensity inside a two-dimensional monitoring area using intensity sensor measurements in presence of a background process. The sensor measurements may be random due to the underlying nature of the source and background as well as due to sensor errors. The sequential probability ratio test (SPRT) can be used to infer detections from measurements...
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