This study has been COTried out in the context of COSTAciion 262, COST European Framework of Coopemtion: www.cordis.lulcostl~,~lti~t home. him

Abstract--Performance optimization, system reliability and operational efficiency are key characteristics of smart grid systems. In this paper a novel model of smart grid-connected PV/WT hybrid system is developed. It comprises photovoltaic array, wind turbine, asynchronous (induction) generator, controller and converters. The model is implemented using MATLAB/SIMULINK software package. Perturb and observe (P&O) algorithm is used for maximizing the generated power based on maximum power point tracker (MPPT) implementation. The dynamic behavior of the proposed model is examined under different operating conditions. Solar irradiance, temperature and wind speed data is gathered from a grid connected, 28.8kW solar power system located in central Manchester. Real-time measured parameters are used as inputs for the developed system. The proposed model and its control strategy offer a proper tool for smart grid performance optimization.

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The boundary element–Rayleigh integral method (BERIM) is developed for the solution of acoustic problems consisting of a cavity with a single opening. The method is a hybrid of the interior boundary element method (BEM) and the Rayleigh integral method for the solution of the Helmholtz equation. FORTRAN codes for expressing the method for axisymmetric problems and general three-dimensional problems are developed. Both methods are applied to the problem of simulating the acoustic field produced by horn loudspeakers. The results are compared with measured data and the traditional exterior BEM. It is shown that the method can have significant computational advantages over the traditional BEM for problems consisting of an open cavity.

Abstract-Smart

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Abstract-G3-PLC is a powerline communication standard employing OFDM technology for the physical layer. The Medium Access Control (MAC) layer is derived from IEEE 802.15.4 as an interface between Logical Link Control (LLC) and the physical layer. It adopted Low-Power Wireless Personal Area Network (6LoWPAN) specification to facilitate IPv6 interaction at the network layer. Due to hostile power line environment, 6LoWPAN Ad hoc protocol (LOAD) is used as an efficient routing method over varying network topologies and link conditions. Since LOAD is originally developed for wireless networks, it does not consider some specific channel characteristics of power line networks in its routing strategy. This paper describes unique enhancements to LOAD routing tailored to power line communications to address issues such as asymmetrical routing, to minimize the number of control messages and to handle the ghost node issue.

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