iosr-JEEE   Volume-6 ~ Issue-2

Abstract: This paper presents design and analysis of a three phase induction motor drive using IGBT‟s at the inverter power stage with volts hertz control (V/F) in closed loop using a microcontroller. A 1HP, 3-phase, 415V, 50Hz induction motor is used as load for the inverter. Oscilloscope is used to record and analyze the various waveforms. The experimental results for V/F control of 3-Phase induction motor using GSM clearly shows constant volts per hertz and stable inverter line to line output voltage.

Keywords - Induction motor, IGBT, GSM,V/F,PWM technique

[1] Alfredo,Thomas A. Lipo And Donald W. Novotny, "A New Inductio Motor V/F Control Method Capable Of High-Performance
Regulation At Lowspeeds" IEEE Trans. Industry Applications, Vol. 34, No. 4 July/ August 1998.
[2] B. Biswas, S. Das, P. Purkait, M. S. Mandal And D. Mitra," Current Harmonic Analysis Of Inverter-Fed Induction Motor Drive
System Under Faultconditions", International Conference Of Engineers And Computer Scientists 2009 Vol II IMECS 2009
[3] Ku. Trupti Deoram Tembhekar "A Constant V/F Open Loop And Closed Loop Speed Control Of A Three Phase Induction Motor
Drive"
[4] Masayuki Morimoto, Kiyotaka Sumito, Shinji Sato, Katsumi Oshitani, Shigeru Okuma" High Efficiency, Unity Power Factor VVVF
Drive System Of An Induction Motor" IEEE Transactions On Power Electronics. Vol 6.No.3.July 1991.
[5] Lu, Willie W, Open Wireless Architecture and Enhanced Performance, Guest Editorial, IEEE Communication Magazine, June 2003
[6] Rodolfo Echavada, Sergio Horta, Marc0 Oliver, "A Three Phase Motor Drive Using IGBT‟S And Constant V/F Speed Control With
Slip Regulation", 0-7803-3071-4/95 1995 IEEE
[7] Rashid M.H, Power Electronics-Circuits, Devices And Applications", Third Edition Printice Hallindia,2001.

Abstract: In this paper, the simulation model of a typical canal type small hydroelectric power plant was developed through interconnection of models of various equipments of the plant under consideration in a MATLAB/Simulink based software environment. The various components of small hydroelectric plant like open channel, governor and Semi-Kaplan turbine, synchronous generator, exciter are being considered under modeling and simulation.. The aim is to study its behavior during transient condition. Using the simulated model enhancement through PID controller will be done to reduce oscillations, peak overshoot and peak undershoot during transient period and also to improve the steady state response This study helps in verifying costs and safety conditions, in selecting the best alternatives in the early phase of design and to determine the requirements of special protection devices.

Keywords – Hydraulic Transients, mathematical models, proportional and integral controller, small hydro electric power plants, Matlab/Simulink.

[1] Carmen L.T. Borges, Senior Member, IEEE, and Roberto J. Pinto. Small Hydro Power Plants Energy Availability Modeling for Generation Reliability Evaluation. IEEE TRANSACTIONS ON POWER SYSTEMS, VOL. 23, NO. 3, AUGUST 2008.
[2] National Association of State Energy Officials (NASEO). Web site: www.naseo.org
[3] Micro-hydro. Web site: www.geocities.com/wim_klunne/hydro/index.html

[4] U.S. Department of Energy Hydropower Program. Web site: hydropower.inel.gov
[5] Volunteers in Technical Assistance (VITA). Web site: www.vita.org
[6] Energy Efficiency and Renewable Energy Clearinghouse (EREC). Web site: www.eren.doe.gov/consumerinfo/.

[7] Prabha Kundur, Power System Stability and Control by Tata McGraw-Hill, New York. A Power System Engineering Series.

[8] Paul M. Anderson and A.A. Fouad Power System Control and Stability IEEE PRESS. The Institute of Electrical and Electronics Engineer, Inc., New York.

[9] K.R.Padiyar, Power System Dynamics-Control and Stability, Interline Publishing Pvt. Ltd., Banglore.

[10] Hongqing Fang, Long Chen, Nkosinathi Dlakavu, and Zuyi Shen Basic Modeling and Simulation Tool for Analysis of Hydraulic Transients in Hydroelectric Power Plants. IEEE Transactions on Energy Conversion, Vol. 23, No. 3, September 2008

Abstract: Increasing demand of electrical energy and its rising prices have enforced the need of managing usage of electrical energy more efficiently. This requires regular monitoring of electrical appliances to timely identify inefficient energy consumption due to faulty conditions, inefficient designs, user negligence, etc. In this paper, design and development of a low-cost wireless data logger is presented that aims to accurately measure the value of energy and related parameters like VRMS, IRMS and instantaneous power in real time for single phase applications. The proposed data logger acts as a plug-in device that can easily be introduced between mains and the appliance. The system can collect the data in real time and communicate it to a computer over a Bluetooth based wireless link. The computer hosts a simple graphical user interface (GUI) based application that allows user to log the data as and when required. The proposed data logger is designed using CS5460A single phase bi-directional power/energy IC from Cirrus logic interfaced with AVR ATmega32 microcontroller. A wireless link between is established using AUBTM-20 Bluetooth modules. Serial EEPROM is also included in the proposed design to store the data locally on the board for later use. GUI for the data logger has been designed using MATLAB.

Keywords - Bluetooth , Data logger, Energy monitoring, , Embedded system, Real time monitoring

[1] S. M. Ahluwalia, Power sector reforms: a review of the process and an evaluation of the outcome, NCAER, Delhi, March 2000.
[2] Energy monitoring technologies inc., 2011, http://www.energymonitor.com
[3] X. Jiang, S. Dawson, P. Dutta, and D. Culler, Design and implementation of high-fidelity ac metering network, Proc. of IEEE Int. Conf. on Information Processing and Sensor Networks, California, USA, 2009.
[4] S. Keshav and C. Rosenberg, How internet concepts and technologies can help green and smarten the electric grid, Green Networking 2010, New Delhi, India, 2010.
[5] Y. Kim, T. Schmid, Z. M. Charbiwala,, and M. B. Srivastava Smith, Design and implementation of a fine grained power monitoring system for homes, Networked & Embedded System Lab., 2009.
[6] Shum-Yu Chan and Jen-Han Teng H. Miller, Advance remote control infrastructure for intelligent HEMS, Proc. of Int. Conf. on Infomration and Electronics Engg., Singapore, 2011.
[7] D. D. Vyas and H. N. Pandya,Advance metering infrastructure and DLMS/COSEM standards for smart grid - A review, Int. Journal of Engg. Research and Tech., Vol. 1, No. 2, Nov. 2012.
[8] The home area network architectural considerations for rapid innovation, Penn Energy, 2009, http://www.pennenergy.com.
[9] CS5460A- Single phase bi-directional power energy IC Data Manual, Cirrus Logic.
[10] AVR ATmega32 Microcontroller Data Manual, Atmel Corporation.