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Vol. 1, No. 2 [July 2015]:

Paper Title :: Control of induction machine connected through long cable and Isolation Transformer
Author Name :: Dr. Uma Shankar S || Prem Sai || Dhanesh Choudhary || Mayank Varshney
Country :: India
Page Number :: 01-08

It is always a general wondering that which method is better for the controlling of speed of induction motor. This paper deals with the control of induction machine connected through a 2Km long cable and isolation transformer using different control strategies and then comparing the simulation results and various other factors that affect the working of induction motor. This paper deals with V/Hz control and Field oriented control. It uses SVPWM to produce the gating signal and the above controls vary the reference voltage of the SVPWM to produce the desired output voltage. MATLAB/SIMULINK is used to perform the simulation in this paper and the results of that are presented to show the effectiveness of the control strategies.

[1]. P. M. Meshram, Dipesh Hanote, M. M. Renge. "A Simplified Space -Vector PWM for Three Level Inverters Applied to Passive and Motor Load" 978-1-4244-2800-7/09/$25.00 ©2009 IEEE.
[2]. Chalasani Hari Krishna ,J. Amarnath, and S Kamakshiah. "A Simplified SVPWM Algorithm for Multi-Level Inverter fed DTC of Induction Motor Drive"International Journal of Engineering and Innovative Technology (IJEIT) Volume 1, Issue 4, April 2012.
[3]. P.Satish Kumar,J.Amarnath and V.L.narasimham "An Effective Space-Vector PWM Method for Multi-level Inverter Based on Two-level Inverter" International Journal of Computer and Electrical Engineering, Vol. 2, No.2, April, 2010 1793-8163
[4]. Ning-Yi Dai, Man-Chung Wong,Ying-Duo Han. "Application of a Three-level NPC Inverter as aThree-Phase Four-Wire Power QualityCompensator by Generalized 3DSVM",ieee transactions on power electronics, vol. 21, no. 2, march 2006.
[5]. Youngroc kim, hanju cha, Byeong-mun song, Kwang y. Lee," Design and Control of a Grid-Connected Three-Phase 3-Level NPC Inverter for Building Integrated Photovoltaic Systems" 978-1-4577-2159-5/12/$31.00 ©2011 ieee

Paper Title :: Modeling and Simulation of a PV System using DC-DC Converter
Author Name :: Prof. Umashankar S || Aparna K P, Priya R, Sindhu Suryanarayanan
Country :: India
Page Number :: 09-16

In this era of efficient use of energy and cost cutting, solar energy comes into prominence. Conversion of this freely available energy into useable form will reduce the burden on other resources; while at the same time expand our energy reserve. In this paper, an attempt has been made to model and simulate a photovoltaic cell. PV cell works at its efficient best when it is operating at its maximum power point.The energy derived from the cell is used to power the load. A DC-DC converter is used as an interface between the cell and the load. A buck-boost converter is implemented as it serves our purpose over the entire operating range of the PV cell. The duty cycle of the converter is varied to ensure impedance matching between the cell output and the load while the "Perturb and Observe" algorithm tracks the maximum power point of the cell. The set-up is studied under different conditions and for different values of the load. An inverter can be used at this stage for a load that works on ac voltage. The whole circuit is simulated using MATLAB SIMULINK. The idea is to ensure maximum performance of the set-up irrespective of the changes in the physical conditions.

[1]. http://www.mathworks.in/webex/recordings/Solar_111809/index.html
[2]. http://www.matlabcentral.in
[3]. Salas, V., 2006, Review of the maximum power point tracking algorithms for stand-alone photovoltaic systems, Solar Energy Materials and Solar Cells, Vol.90(11), PP: 1555-1578.
[4]. Khanna, Vandana, BijoyKishore Das, and Dinesh Bisht, 2013, MATLAB/SIMELECTRONICS Models Based Study of Solar Cells, International Journal of Renewable Energy Research (IJRER) Vol.3(1) PP: 30-34.
[5]. SalmiTarak,2012, MATLAB/Simulink Based Modeling of Photovoltaic Cell, International Journal of Renewable Energy Research (IJRER), Vol.2(2), PP: 213-218









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