MICROCONTROLLER BASED ELECTRONIC LOAD CONTROLLER FOR MICROHYDRO SYSTEM PROJECT TEAM • SAILESH DAHAL •ANIL WAGLE •AMIR RAJ GIRI •BIKESH SHRESTHA •SANDESH ACHARYA
Dec 16, 2015
MICROCONTROLLER BASED ELECTRONIC LOAD CONTROLLERFOR MICROHYDRO SYSTEM
PROJECT TEAM
• SAILESH DAHAL
•ANIL WAGLE
•AMIR RAJ GIRI
•BIKESH SHRESTHA
•SANDESH ACHARYA
abstract• The proposal “Microcontroller based Electronics Load
Controller for micro-hydro system” presents design of a microcontroller based electronic load controller (ELC) for synchronous generator intended for a stand- alone micro hydro power generation. An Electronic Load Controller (ELC) is an electronic unit which keeps the speed of synchronous generator constant at varying load conditions. The generator is driven in constant speed with constant power output. A dump load is connected across the generator terminals to dump the excess power generated. When the consumer load changes frequency of generated voltage also changes. The frequency is sensed and compared with the reference frequency and error so obtained is utilized to control power consumed by dump load so that generator always operates at its full rating, resulting in constant speed.
ELC
Generated power = Consumed power + Dump Load
BLOCK DIAGRAM
DIVISON OF WORK MODULE
ELC
SLOPE OF SLIP OF
GEN
MIRCROCONTROLLER DC CHOPPING
PUSLE WIDTH DETERMINATI
ON
PW MODULATION
BRIDGE RECTIFICATI
ON
FREQUENCY SENSING
MOSFET DRIVING
POWER SUPPLY
SINE WAVE TO SQUARE
LCD DISPLA
Y
FREQUENCY MEASUREMENT
POWER SUPPLY AND SINE TO SQUARE CONVERSION
Sine to Square Conversion
FREQUENCY vs. POWER ANALYSIS
Theoretical Analysis Practical Results
BRIDGE RECTIFICATION
MATLAB SIMULINK MODEL OUTPUT RESULT FROM EXPERIMENT
Input from the
generator
Rectified
output
WORK REMAINING• MOSFET for switching the dump load
• Filter circuit design
• Using a Current sensor for displaying the current level
• PCB design
• Fabrication.
• Interfacing GUI with Hardware
• Final testing and demonstration
CONCLUSION
•Need to Overcome the complications
•Search for Possible advancement in project
•Focused on other objectives Matlab simulationTrends of commercialization in ELC
REFERENCES• [1] Sen, P.C. (1998). Principles of Electric Machines and Power Electronics (2nd Ed.). John Wiley
and Sons, New York
• [2] Bimbhra, P. S. (2007). Electrical Machinery (7th Ed.). Khanna Publishers, India.
• [3] http://www.microhydropower.net/index.php Viewed on 2013/10/13
• [4] http://home.planet.nl/~porte000/humbird/ Viewed on 2013/11/29.
• [5] DYNAMIC SIMULATION, ANALYSIS AND CONTROL OF SELF-EXCITED INDUCTION GENERATOR USING STATE SPACE APPROACH by Anjali Garg, K.S. Sandhu, L.M. Saini. Available at http://www.jee.ro/articles/WP1350027166W5077c79f0002b.pdf
• [6] Pankaj kapoor, Lobzang Phunchok, Sunandan Kumar, Asst. Prof. Om Prakash R Journal of Engineering Research and Applications (IJERA) ISSN: 22; www.ijera.com Vol. 2, Issue 4, June-July 2012, pp.733-737
• [7] Review On Electronic Load Controller by Vimal Singh Bisht,Y.R Sood, Nikhil Kushwaha and Suryakant International Journal of Scientific Engineering and Technology (ISSN : 2277-1581) www.ijset.com, Volume No.1, Issue No.2 pg:93-102
• [8] Thesis on "THE DESIGN OF A 5 kW MICROHYDRO GENERATING SET" by SIMON SANGHARETH HENG, Department of Mechanical Engineering, University of Canterbury February 1992
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