Electronic Research Collaboration via Access Grid

Recent technological advances are providing new and exciting opportunities for researchers to work together across the conventional boundaries of time, distance, and discipline. These advances have formed new networks of research, both in electronic mediums and in face-to-face environments, different from traditional networks in terms of their changing nature and scope. This paper reports some of the preliminary findings from a qualitative case study of the establishment of the ‘EMT project'. It attempts to illustrate how the EMT project as a connected network formulates positive academic interactions and consequently facilitates professional learning immersed in research activities. In parallel, the study examines the benefits and problems arising from the sense of being together across time and space supported by advanced networked technologies in collaborative research, and further identifies the gap between the academic and the technical perspective in research.

Research on the Probability Distribution of the Power Fluctuation for Wind Electricity

With the worsening energy and environment problem, renewable energy resources, especially wind electricity, have been experiencing an accelerating development. And as the electricity to access grid for wind power gradually increases, people pay more attention to the likely impact of the randomness of wind power. Fluctuation is the inherent characteristic for wind electricity power, yet there is a lack of effective method to quantitatively describe the power fluctuation of wind electricity. This paper find that t location-scale can be applied to describe the probability distribution of the power fluctuation for wind electricity, and the temporal and spatial distribution of wind electricity power fluctuation has a certain trend, i.e. The larger the gather scale of the wind generators is, the more smooth the fluctuation tends to be.

Power System Stochastic Economic Dispatch Considering Uncertain Discharge Capacity from V2G

V2G technology achieves a two-way interaction of the grid and electric vehicles (EVs), it makes plug-in hybrid electric vehicle (PHEV) be able to access grid and participate in grid scheduling. By V2G technology, PHEVs can provide FM and spinning reserve ancillary services such as economic dispatch. With the extensive use of plug-in hybrid electric vehicles (PHEVs), its important impact on charge and discharge process will be the grid safe and economic operation. Firstly, the article proves the V2G discharge capacity of a normal distribution from the theory, and based on which to establish a stochastic economic dispatch model. The results which obtain by using the IEEE 14 node system simulation show that this conclusion of the constructed model is feasible and effective, and the conclusions that the V2G node optimal active output power and minimum scheduling cost expectations are proportional to the the V2G discharge capacity expectations are also obtained.

Policy for Mobile Devices to Access Grid Infrastructure

Mobile devices are gradually becoming prevalent in our daily life, enabling users in the physical world to interact with the digital world conveniently. Mobile devices increasingly offer functionality beyond the one provided by traditional resources processor, memory and applications. This includes, for example, integrated multimedia equipment, intelligent positioning systems, and different kinds of integrated or accessible sensors. For future generation grids to be truly ubiquitous we must find ways to compensate for the limitations inherent in these devices and integrate them into the grid, in order to leverage available resources and broaden the range of supplied services. On the other hand, most of mobile devices do not have the sufficient capabilities to be either direct clients or services in the grid environment. The existing middleware platforms like Globus do not fully address mobility, yet extending the potential of the Grid to a wider audience promises increase in its flexibility and productivity. This chapter looks into design architecture for mobile computing environment. Focus is given to security and its policies that will enhance the performance of grid computing in terms of secure design, architecture, accessibility, and mobility.