iosr-JEEE   Volume-9 ~ Issue-6 ~ Nov-Dec 2014

Abstract:The underground mines, oil and gas industries need remote operation of vector controlled medium voltage variable speed induction motor drives with long feeder. The usage of voltage source inverters in such cases leads to motor over voltage and harmonic problems. The current source inverter (CSI) has no such problems to these applications because of its motor friendly voltages output. This paper proposes "sensor less operation of a CSI fed induction motor drive" and improves the speed estimation. The proposed model uses model reference adaptive system (MRAS) speed estimator requires motor voltage and currents as inputs.

[1] Ahmed K. Abdelsalam, Mostafa S. Hamad , "Improved Sensorless Operation of a CSI-Based Induction Motor Drive: Long Feeder Case" IEEE trans. Power Electronics., vol. 28 n0. 8, pp. 4001-4012, Aug. 2013.

[2]. C. Schauder, "Adaptive speed identification for vector control of induction motors without rotational transducers," IEEE Trans. Ind. Appl., vol. 28, no. 5, pp. 1054–1061, Sep./Oct. 1992.

[3] K. P. Phillips, "Current-source converter for AC motor drives," IEEE Trans. Ind. Appl., vol. IA-8, no. 6, pp. 679–683, Nov./Dec. 1972.

[4] N. Aoki, K. Satoh, and A. Nabae, "Damping circuit to suppress motor terminal overvoltage and ringing in PWM inverter-fed AC motor drive systems with long motor leads," IEEE Trans. Ind. Appl., vol. 35, no. 5, pp. 1014–1020, Sep./Oct. 1999.

Abstract: This paper presents a surveillance and energy saving system for a Hospital. The major wastage occurring in the hospitals are human energy (chaos & efforts from staff to manage crowd) and electrical energy. So the idea is to develop a smart chaos managing system integrated on the present surveillance system that automatically detects and alerts the security personals and thus will reduce the extra efforts of medical staff. Along with this a virtual electrical monitoring is present which can detect and identify short circuits and other problems and also turn off lightings and fans in places such as offices. This in total will be monitoring and automatically detecting chaos and directing securities and control electrical energy wastage in hospitals.
Keywords: Image Processing, PIR sensor, Signal processing, Zigbee.

[1] S. M. Metev and V. P. Veiko, Laser Assisted Microtechnology, 2nd ed., R. M. Osgood, Jr., Ed. Berlin, Germany: Springer-Verlag, 1998.
[2] J. Breckling, Ed., The Analysis of Directional Time Series: Applications to Wind Speed and Direction, ser. Lecture Notes in Statistics. Berlin, Germany: Springer, 1989, vol. 61.
[3] S. Zhang, C. Zhu, J. K. O. Sin, and P. K. T. Mok, "A novel ultrathin elevated channel low-temperature poly-Si TFT," IEEE Electron Device Lett., vol. 20, pp. 569–571, Nov. 1999.
[4] Jian-Shuen Fang et al, "Real-time human identification using a pyroelectric infrared detector array and hidden Markov models", optics express 6643, vol.14, pp.15, July 2006.
[5] Mr. S.P Vijayaragavan et al, "Live Human Detecting Robot for Earthquake Rescue Operation", International Journal of Business Intelligents, Vol 02, Issue 01, June2013

Abstract: The use of multilevel inverters have become popular in recent years for high power application. Multilevel inverters are power converter systems composed by an array of power semiconductors sources that when properly connected and controlled can generate a multistep voltage waveform with variable and controllable frequency, phase and amplitude. This study deals a nine level inverter system with different types of loads; the voltage source inverters( VSI ) are modelled and simulated using MATLAB simulink and the result are presented. The test results verify the effectiveness of the proposed strategy in terms of computational efficiency as well as the capability of the inverter to produce very low distorted voltage with low switching losses. This research aims to extend the knowledge about the performance of different clamped multilevel inverter through harmonics analysis. Simulations results validate up to the mark performance of the mentioned topologies.
Keywords: Multilevel Inverter, High power applications, Multicarrier Technique, Voltage Source Inverter, Pulse Width Modulation.

[1]. J. S. Lai and F. Z. Peng, "Multilevel converters – A new breed of power converters," IEEE Trans. Ind. Applicant., vol. 32, pp. 1098–1107, May/June 1996.
[2]. J. Rodriguez, J.-S. Lai, and F. Z. Peng, "Multilevel inverters: a survey of topologies, controls, and applications," IEEE Trans. Ind. Electron., vol. 49, pp. 724-738, 2002. [3] L. M. Tolbert, F. Z. Peng, and T. G. Habetler, "Multilevel converters for large electric drives," IEEE Trans. Ind. Applicat., vol. 35, pp. 36-44, 1999.
[3]. H. Stemmler. Power electronics in electric traction applications. IEEE conference of Industrial Electronics, Control and Instrumentation, IECON‟93, 2:7 07 – 713, 1993.
[4]. H. Fujita, S. Tominaga, and H. Akagi. Analysis and design of an advanced static VAR compensator using quad-series voltage-source inverters. IEEE Industry Apps Meeting, 3:2565–2572, 1995.
[5]. Y. Yoshioka, S. Konishi, N. Eguchi, M. Yamamoto, K. Endo, K. Maruyama, and K. Hino. Self-commutated static flicker compensator for arc furnaces. In IEEE Applied Power Electronics Conference, volume 2, pages 891–897, 1996.

Abstract:This paper proposes a voltage control strategy for a three level PWM converter based on feedback linearization in order to control dc bus voltage. Incorporating the power balance of the input and output sides in system modeling, a nonlinear model of the PWM converter is derived with state variables such as ac input currents and dc output voltage. Feedback linearization transforms a nonlinear system into a linear system. Then by input–output feedback linearization, the system is linearized and a state feedback control law is obtained by pole placement. For robust control to parameter variations, integrators are added to the exact feedback control
law. Since the fast voltage control is feasible for load changes, it is shown that the capacitor size can be reduced remarkably. The input current is regulated to be sinusoidal and the source power factor can be controlled at unity. This feedback linearization technique can be extended for permanent magnet synchronous generator wind power system at the grid voltage sag. The proposed method is tested and the results of simulation are observed using MATLAB/SIMULINK.
Keywords: AC/DC pulse width modulation converter, DC-link voltage, feedback linearization, permanent magnet synchronous generator (PMSG), wind power, matlab/simulink.

[1]. Ki-Hong Kim,Yoon-Cheul Jeung, Dong-Choon Lee and Heung-Geun Kim "LVRT Scheme of PSMG wind power system based on
feedback linearization", IEEE Transactions on Power Electronics, vol.27,no.5,may2012.
[2]. J. Dai, D. Xu, B.Wu, and N. R. Zargari, "Unified DC-link current control for low-voltage ride-through in current-source-converterbased
wind energy conversion systems," IEEE Trans. Power Electron., vol. 26, no. 1, pp. 288–297, Jan. 2011.
[3]. D.-E. Kim and D.-C. Lee, "Feedback linearization control of three-phase UPS inverter systems," IEEE Trans. Ind. Electron., vol.
57, no. 3, pp. 963– 968, Mar. 2010.
[4]. G. Foo and M. F. Rahman, "Sensorless direct torque and flux-controlled IPM synchronous motor drive at very low speed without
signal injection," IEEE Trans. Power Electron., vol. 57, no. 1, pp. 395–403, Jan. 2010.
[5]. A.Vladan Stankovic, and K. Chen, "A New Control Method for Input-Output Harmonic Elimination of the PWM Boost Rectifier under Extreme Unbalanced Oper-ating Conditions," IEEE Transactions on Industrial Elec-tronics, Vol. 56, No. 7, 2009, pp. 2420- 2430. Doi:10.1109/TIE.2009.2017550

Abstract:D-STATCOM (Distribution Static Compensator) is a shunt device which is generally used to improve power quality of distribution systems. It is a device applied for correcting power factor, maintaining constant distribution voltage and mitigating current harmonics in a distribution network. In this paper, effort has been made to use ZSI based D-STATCOM in distribution system and its performance has been compared to VSI based DSTATCOM. The MATLAB/SIMULINK models have been developed to draw the conclusions.

Keywords: FACTS devices, DSTATCOM, Z-Source Inverter.

[1]. Wei-Neng Chang, Kuan-DihYeh, "Design and implementation of DSTATCOM for fast load compensation of Unbalanced Loads", Journal of Marine Sci. and Tech., Vol. 17, No. 4, pp. 257-263(2009)
[2]. D. Masand, S. Jain, G. Agnihotri, "DSTATCOM performance under linear and non linear current regulation methods", J. Electrical Systems 4-1 (2008): 91-105.
[3]. Parag Nijhawan, Ravinder Singh Bhatia, and Dinesh Kumar Jain, "Application of PI controller based DSTATCOM for improving the power quality in a power system network with induction furnace load", SJST, 34 (2), 195-201, Mar. - Apr. 2012.
[4]. R. Indumathi, M. Venkateshkumar, R. Raghvan, "Integration of DSTATCOM based PV cell power in Low Voltage power Distribution Grid", IEEE International Conference on Advances in Engineering, Science and Management (ICAESM-2012) March 30,31,2012.
[5]. Alpesh Mahavanshi, M.A. Mulla, R. Chudamani, "Reactive power compensation by controlling the DSTATCOM", IJETAE, ISSN 2250-2459, Vol. 2, Issue 11, Nov, 2012.

Abstract: Scarcity of energy resources, increasing power generation cost and ever-growing demand for electric energy necessitates optimal economic dispatch in today's power systems. The main objective of economic dispatch is to reduce the total power generation cost, while satisfying various equality and inequality constraints. Traditionally in economic dispatch problems, the cost function for generating units has been approximated as a quadratic function which doesn't provide accurate results. Moreover, to obtain accurate fuel cost, valve-point effect in thermal power plant has to be taken into account. The inclusion of valve-point effect makes the modeling of the fuel cost functions of generating units more practical. In this paper a new evolutionary algorithm called Pattern Search Technique, has been employed to solve economic dispatch problem with the valve-point effect. Using this technique the non-linear cost function is solved for three unit system and the results are compared with the traditional PSO and GA method. These results prove that Pattern Search method is capable of getting higher quality solution including mathematical simplicity, fast convergence, and robustness to solve hard optimization problems.

Keywords: Economic Dispatch, Valve point effect, Pattern Search Method.

[1]. Aruldoss Albert victorie, T. and Ebenezer Jeyakumar, A. (2004) "Hybrid PSP-SQP for economic dispatch with valve point effect",
Electric power system research, vol.no.71, pp. 51-59.
[2]. Attaviriyanupap P., Hasegawa J., Kita H., and Tanaka E. (2002)"A hybrid EP and SQP for dynamic economic dispatch with nonsmooth
incremental fuel cost function", IEEE Transactions on Power System, vol. 17, no. 2, pp. 411-416.
[3]. Aug and Zwe- Lee Gaing (2003) "Particles swarm optimization to solving the Economic Dispatch Considering the Generator
constraints", IEEE Transactions on power systems, vol. 18, No. 3, pp.1157-1195.
[4]. Bentley, P. and Blackwell, T. "Don't push me! Collision-avoiding swarms," in Proc. IEEE Congr. Evol. Comput., May 2002, vol. 2,
pp. 1691–1696.
[5]. Bhagwan Das, D. and Patvardhan, C. (1999) "Solution of Economic Load Dispatch using real coded Hybrid Stochastic Search",
Electrc. Power Energy System, vol.no 21, pp. 165-170.

Abstract:This paper presents design of axial flux permanent magnet generator using torus construction of stator with plastic material. To maximise the efficiency of the generator, the losses are to be minimized in proposed N-S Arrangement iron loss is absent and only copper losses are present. To minimise the copper loss for a given rating, the per phase stator resistance is to be minimised. The relation between Internal Diameter (ID) to Outer Diameter (OD) Ratio and the per phase resistance has been developed and optimal value is worked out. Also the designs were prepared for various ID to OD ratios to verify the optimal results.

Keywords: Axial flux machine, Torus design, Plastic material stator, ID to OD ratio, Optimisation, Rph75

[1]. A H Saifee and Dr. Arvind Mittal, "Design Comparison of Radial Flux Permanent Magnet Generator and Axial Flux Permanent Magnet Generator" International Journal of Electrical and Electronics Engineering Research (IJEEER) TRANS STELLAR, ISSN(P): 2250-155X; ISSN(E): 2278-943X, Vol . 4, Issue 3, pp 35-42, Jun 2014(IF:5.96)
[2]. P. Campbell, "Principles of a permanent-magnet axial-field DC Machine", Proc. IEE, Vol. 121, Dec. 1974, pp.1489-1494.
[3]. C. C. Jensen, F. Profumo and T. A. Lipo, "A low loss permanent Magnet brushless DC motor utilizing tape wound amorphous iron", IEEE Transaction on Industry Applications, Vol. 28, No. 3, May/June 1992, pp.646-651.
[4]. T. A. Lipo, S Huang and M. Aydin, "Performance assessment of axial Flux permanent magnet motors for low noise applications", Final Report to ONR, Oct 2000.
[5]. S. Huang, M. Aydin and T. A. Lipo, "Low noise and smooth torque Permanent magnet propulsion motors: Comparison of non-slotted and Slotted radial and axial flux topologies", IEEE International Aegean Electrical Machine and Power Electronic Conference, Kusadasi-Turkey, 2001, pp.1-8.
[6]. S. Huang, M. Aydin and T. A. Lipo, "TORUS concept machines: preprototyping Design assessment for two major topologies", IEEE Industry Applications Society Annual Meeting, Chicago, 2001.

Abstract:With the using of the renewable energy sources increasingly, application of the distributed generation (DG) in the distribution system acquired more attention. The DG systems are powered by micro sources such as fuel cells, photovoltaic (PV) systems, and batteries. Photovoltaic (PV) inverters become more and more widespread within both private and commercial circles. These grid-connected inverters convert the available direct current supplied by the PV panels and feed it into the utility grid. Micro grid concept acts as a solution to integrate large amounts of micro generation without disrupting the operation of utility grid. The uniqueness of the proposed modeling and control includes a complete model's details of micro-grid set up with PV system, power conditioning devices and load model, the utilization of an MPPT and feedback controller to control the output voltage and current and interfaced to grid system using 2-level & 3-level inverter topology. The dynamic analysis of proposed converter strategies is evaluated with the help of Matlab/Simulink platform and results are conferred.

Keywords: Micro Grid Connected System, MPPT Technique, PV Module, Inverter Module, Total Harmonic Distortion.

1]. Huan-Liang Tsai, Ci-Siang Tu, and Yi-Jie Su, "Development of Generalized Photovoltaic Model Using MATLAB/SIMULINK," Proceedings of the World Congress on Engineering and Computer Science, San Francisco, CA, October 22-24, 2008.
[2]. Sukumar Kamalasadan, Khalid s. Al-Olimat "Modeling and control of a Micro-Grid setup Using Photo Voltaic Arrays", IEEE Transactions,2013.
[3]. F.M. Gonzalez-Longatt, "Model of Photovoltaic Module In Matlab," Latin American Congress of Students of Electrical Engineering, 2005.
[4]. D.A. Neamen, Semiconductor Physics and Devices. New York: Mcgraw-Hill, 2003.
[5]. Minakshi DebBarma, Sumita Deb, Champa Nandi "Maximum photo voltaic power tracking using perturb and observe algorithm in Matlab/Simulink environment", vol.1, pp.71-84, 2010.
[6]. R. Fracz and A. Dmowski, "Monitoring and Control of Distributed Power Generation Systems such as Photovoltaic System," X International PhD Workshop, pp. 313-316, October2008, http://mechatronika.polsl.pl/owd/pdf/313.pdf.
[7]. T. DenHerder, "Design and Simulation of Photovoltaic Super System Using Simulink," California Polytechnic State University, 2006.

Abstract:The overarching goal of autonomic computing is to realize computer and software systems and applications that can manage themselves in accordance with high-level guidance from humans. Meeting the grand challenges of autonomic computing requires scientific and technological advances in a wide variety of fields, as well as new software and system architectures that support the effective integration of the constituent technologies. This paper presents an introduction to autonomic computing, Its properties over cloud computing.

Keywords: cloud computing, autonomic computing, QoS.

[1]. Future Generation Computer Systems25(2009)599-616 www.elsevier.com/locate/fgcs.The University of Melbourne, Australia
[2]. http://www.dolcera.com/wiki/index.php?title=Cloud_Computing#Cloud_ computing _comparison_ of_ different _vendors
[3]. autonomic computing self protection the vision of autonomic computing [1\Jeffrey O,kephart 2\david M.chess]
[4]. cloud computing over cluster., grid computing comparative analysis-indugandotra,pawanesh Abrol,poja Gupta Rohit Uppal and sandeep Singh-Iournal of grid and distributed computing-volumee 1Issue1,2011
[5]. www.cloud computing.com/image
[6]. www.autonomic computing.com/image
[7]. classical.istrbuted,cluster,grid, utility and cloud computing[1\Amin babiker A\Nabi 2\Osama Abdallah Mmohammed Enan 3\yassebMuhammed Tom Yusif]

Abstract:Autonomic computing was an idea that came to existence because of the great need to its basic concepts, which it's to have available resources, applications that can manage themselves in accordance with high level guidance from humans. The idea of Autonomic computing is not new, but it developed Cloud computing through the years to reach the current situation (Autonomic computing) In this paper there will be an overview for other types of computing beside Autonomic computing to highlight the differences between them, the characteristics and the advantages and disadvantages for each. That comparative will lead to the importance of Autonomic computing and its wide open future

Key words: Cluster computing, Grid computing, Utility computing, Cloud computing, Autonomic computing

[1]. Indu Gandotra, Pawanesh Abrol, Pooja Gupta, Rohit Uppal and Sandeep Singh - Cloud Computing Over Cluster, Grid Computing: a Comparative Analysis - Journal of Grid and Distributed Computing - Volume 1, Issue 1, 2011
[2]. Cluster, Grid, Cloud –Concepts Kalaiselvan.K – GGOA - C-DAC Bangalore - 17/03/2011
[3]. Cloud computing and emerging IT platforms: Vision, hype, and reality for delivering computing as the 5th utility, Rajkumar Buyya, Chee Shin Yeo, Srikumar Venugopal, James Broberg, Ivona Brandic
[4]. 4.http://www.platformusers.net/cluster-computing/advantages-of-cluster-computing.html
[5]. http://www.authorstream.com/Presentation/aSGuest68841-539251-cluster-computing
[6]. http://it.toolbox.com/blogs/technews/grid-computing-advantages-and-disadvantages-23668
[7]. http://www.blurtit.com/q2750398.html

Abstract:Autonomic computing was an idea that came to existence because of the great need to its basic concepts, which it's to have available resources, applications that can manage themselves in accordance with high level guidance from humans. The idea of Autonomic computing is not new, but it developed Cloud computing through the years to reach the current situation (Autonomic computing) In this paper there will be an overview for other types of computing beside Autonomic computing to highlight the differences between them, the characteristics and the advantages and disadvantages for each. That comparative will lead to the importance of Autonomic computing and its wide open future

Key words: Cluster computing, Grid computing, Utility computing, Cloud computing, Autonomic computing

[1]. Indu Gandotra, Pawanesh Abrol, Pooja Gupta, Rohit Uppal and Sandeep Singh - Cloud Computing Over Cluster, Grid Computing: a Comparative Analysis - Journal of Grid and Distributed Computing - Volume 1, Issue 1, 2011
[2]. Cluster, Grid, Cloud –Concepts Kalaiselvan.K – GGOA - C-DAC Bangalore - 17/03/2011
[3]. Cloud computing and emerging IT platforms: Vision, hype, and reality for delivering computing as the 5th utility, Rajkumar Buyya, Chee Shin Yeo, Srikumar Venugopal, James Broberg, Ivona Brandic
[4]. 4.http://www.platformusers.net/cluster-computing/advantages-of-cluster-computing.html
[5]. http://www.authorstream.com/Presentation/aSGuest68841-539251-cluster-computing
[6]. http://it.toolbox.com/blogs/technews/grid-computing-advantages-and-disadvantages-23668
[7]. http://www.blurtit.com/q2750398.html