iosr-JECE   Volume-7 ~ Issue-3

Abstract: In the recent year's power utility of coastal areas are experiencing relatively large quantum of solar and wind energy. If the wind is heavy it might produce larger sea waves of high energy contents. The electricity needs of a township or a village situated in a coastal area can be partially fulfilled by installing a modular mini electricity generating unit and an intensified solar heat extractor in buildings. Also, installation of medium sized windmill plant, solar heated steam turbine electricity generator and sea wave energy extracting plants could fulfill the rest of the electricity needs of the township. Here we discuss the regulation of the voltage and frequency of a stand-alone fixed-pitch wind energy conversion system (WECS) based on a self-excited squirrel-cage induction machine. The characteristics of the wind turbine, self-excited generator, and the ratings of the VSI are considered in order to determine the load range for which voltageand frequency can be regulated for a given wind speed range.

Keywords: Solar panel, solar tracker, solar water heater,renewable energy, wind mills, induction generator, load management.

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[4] K. Balasubramanian and A. Cellatoglu, "Optimal Utilization of Renewable Energy Resources in North Cyprus : A proposed Model", Proceedings of the 2nd International Conference on Computer and Electrical Engineering , Dubai, Dec 2009, pp 178-183.

[5] Carstensen, J., Popkirov, G., Bahr, J. and Föll, H., " An Advanced LBIC Measurement Technique for Solar Cell Local Characterization', Solar Energy Materials and Solar Cell , 76, 4 , 2003, pp 599-611.

[6] Li,D.H.W., Cheung, G.H.W. and Lam,J.C., "Analysis of The Operational Performance and Efficiency Characteristic for Photovoltaic System in Hong Kong", Energy Conversion and Management, 46, 2005, pp 1107-1118.

[7] Joe-Air Jiang, Tsong-Liang Huang, Ying-Tung Hsiao and Chia-Hong Chen, "Maximum Power Tracking for photovoltaic Power Systems", Tamkang Journal of Science and Engineering, Vol 8, No 2, pp 147-153, 2005.

[8] B.Koyuncu and K.Balasubramanian, "Microprocessor Controlled Automatic Sun Tracker", IEEE Trans on Cons. Electron, Vol 37, No 4, Nov 1991, pp 913-917.

[9] K.Balasubramanian and A.Cellatoglu, "Improvements in Home Automation Strategies for Designing Apparatus for Efficient Smart Home", IEEE Trans. on Cons. Electronics, Vol 54 , No 4, Nov 2008, pp 1681-1687.

[10] A.Yasli, Investigations on the Design of Dual Renewable Energy Systems for Use in North Cyprus, MS Thesis Dissertation, European University of Lefke, North Cyprus, 2009.

Abstract: In the recent trends the field signal processing is an emerging technology for data acquisition systems, controlling application systems and automation system in real time environment. Versa Modular European (VME) and CRIO based hardware to simulate the field signals for the computer based control and instrumentation panel. Simulator is used to transmit multiple number of signals at a time. FSS software is a generic software to simulate the field signals for a computer based control and instrumentation system. Its general purpose nature easily extends its capabilities to build and perform unit under test(UUT's) ATP specific test routines. Field signal simulator (FSS)is also an Automatic Testing Equipment (ATE). The main the Scope of this project covers real time computer (RTC) systems used for Signal Processing & Control application and the simulation techniques used to achieve automation by testing these RTC systems. It also includes RTC hardware and the software used for process & control applications. Simulation hardware & software used to test VME system is also included in the scope of this study.

[1]. John AStankovic "RealTime Computing", University of Massachusett, April 16 1992

[2]. KANG G. SHIN AND PARAMESWARAN RAMANATHAN," Real-Time Computing: A New Discipline of Computer Science and Engineering" PROCEEDINGS OF THE IEEE, VOL. 82,NO. I , JANUARY 1994.

[3] ELEC 464 : MICROCOMPUTER SYSTEM DESIGN 1996/97 WINTER SESSION TERM 1" The System Bus"

Abstract: Sum patterns find applications in Radar for searching and ranging of the targets. A sum pattern with low sidelobe level is a desirable feature in these applications, in order to reduce EMI problems. Sum patterns with Asymmetrical sidelobe topography are considered, in applications where only certain angular regions of pattern are required to have low sidelobe level. Asymmetrical pattern characteristics can have lower beam widths for given design specifications as compared to symmetrical patterns. In view of this, a conventional method of synthesis is carried out in this paper, to produce asymmetrical sidelobe level patterns using discrete arrays. The effect of beam scanning on the pattern behavior is also analyzed for the above synthesized patterns.

Keywords: sum pattern, asymmetrical sidelobe level, beam width, complex excitation weights, and discrete array.

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