this represent a method of power theft prevention by fuzzy logic code in matlab help

1. A SEMINAR PRESENTATION
ON
“POWER THEFT PREVENTION AND POWER
QUALITY
IMPROVEMENT USING FUZZY LOGIC”
Submitted to: Submitted by:
Mr. Ankush Tandon Vaibhav Bindal
Mrs. Deepti Arela (10ESKEE122) 1

2. CONTENT
 INTRODUCTION
 POWER THEFT
 POWER QUALITY
 FUZZY LOGIC
 PRINCIPLE OF PREVENTING POWER THEFT
 PRINCIPLE OF IMPROVING POWER QUALITY
 MATLAB RESULTS
 CONCLUSION
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3. INTRODUCTION
 The electricity sector in India had an installed
capacity of 237.742 GW as of February 2014, the
world's fourth largest.
 India's network losses exceeded 35% including
non-technical losses out of which technical losses
is estimated to be 22.65% in 2013. compared to
world average of less than 15%.
 One of the important mischief is the power theft
which is contributing a larger amount to the
nontechnical losses in transmission and
distribution.
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4.  Aim of the paper is to reduce power theft and
improve the power quality by the the help of Fuzzy
logic .
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5. POWER THEFT
 Power theft could be defined as using the electricity
without paying for it basically it is stealing of
electricity.
 Two kinds of theft are prevalent in power systems.
1) The Meter tampering
2) The direct rigging of the distribution line
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6. THE METER TAMPERING
 Meter tampering is the method of tampering the
meter by removing it’s seal .
 By-passing the meter so that a lower reading of
power use.
 Standard electro-mechanical meters use a slowly
spinning disk to record the amount of power that is
being drawn , the disks can be slowed using
magnets .
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7. 7
PREVENTION:-
 the prevention of power theft of this type can be
detected by placing a LDR circuit inside the meter .

8. THE DIRECT RIGGING OF THE
DISTRIBUTION LINE
 The most visible indication of energy theft occurs
when users illegally tap into the public supply.
 we cannot identify the power theft automatically.
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9. POWER QUALITY
 The quality of electrical power may be described as
a set of values of parameters such as
 continuity of service,
 variation in voltage magnitude,
 transient voltages and currents
 harmonic content in the waveforms.
 power quality is a convenient term for many, it is the
quality of voltage which is supplied to the
consumers rather than current or power.
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10. FUZZY LOGIC
 Fuzzy logic can be conceptualized as a
generalization of classical logic.
 There are not just two alternatives but a whole
continuum of truth values for logical propositions.
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11. DIFFERENCE IN CLASSICAL AND
FUZZY THEORY
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CLASSICAL THEORY FUZZY LOGIC

12. WORKING PRINCIPLE BLOCK
DIAGRAM OF POWER THEFT
PROTECTION
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13. WORKING PRINCIPLE BLOCK
DIAGRAM OF POWE QUALITY
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14. EXAMPLES OF MATLAB
RESULTS
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 Result of Over-Voltage : If the voltage is 151V
then the change voltage is -151V

15.  Result of Normal functioning: If the voltage is
230V then the change voltage is 0V.
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16. RESULT OF POWER THEFT: VOLTAGE IS BROUGHT
DOWN BELOW
THE CRITICAL VALUE IN CASE OF POWER THEFT.
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17. CONCLUSION
 Thus , the application of intelligent control in
electrical system can improve the power quality
and at the same time prevent illegal activities .
The power theft prevention would be a boom to
a country’s economy in managing the need for
power generation.
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18. REFERENCES
 Vinod Kumar and R.R.Joshi, “Hybrid Controller
based Intelligent Speed Control of Induction Motor”,
Journal of Theoretical and Applied Information
Technology © 2005.
 Nasri Sulaiman, M. H. Marhaban and M. N.
Hamidon, “FPGA-Based Fuzzy Logic: Design
andApplications – a Review”, IACSIT International
Journal of Engineering and Technology, Vol.1, No.5,
December, 2009, ISSN: 1793-8236.
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19. THANK YOU
ANY QUERIES?
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