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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
CONTENT
 INTRODUCTION
 POWER THEFT
 POWER QUALITY
 FUZZY LOGIC
 PRINCIPLE OF PREVENTING POWER THEFT
 PRINCIPLE OF IMPROVING POWER QUALITY
 MATLAB RESULTS
 CONCLUSION
2
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.
3
 Aim of the paper is to reduce power theft and
improve the power quality by the the help of Fuzzy
logic .
4
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
5
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 .
6
7
PREVENTION:-
 the prevention of power theft of this type can be
detected by placing a LDR circuit inside the meter .
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.
8
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.
9
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.
10
DIFFERENCE IN CLASSICAL AND
FUZZY THEORY
11
CLASSICAL THEORY FUZZY LOGIC
WORKING PRINCIPLE BLOCK
DIAGRAM OF POWER THEFT
PROTECTION
12
WORKING PRINCIPLE BLOCK
DIAGRAM OF POWE QUALITY
13
EXAMPLES OF MATLAB
RESULTS
14
 Result of Over-Voltage : If the voltage is 151V
then the change voltage is -151V
 Result of Normal functioning: If the voltage is
230V then the change voltage is 0V.
15
RESULT OF POWER THEFT: VOLTAGE IS BROUGHT
DOWN BELOW
THE CRITICAL VALUE IN CASE OF POWER THEFT.
16
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.
17
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.
18
THANK YOU
ANY QUERIES?
19

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prevention of power theft and power uality by the help of fuzzy logic

  • 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 2
  • 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. 3
  • 4.  Aim of the paper is to reduce power theft and improve the power quality by the the help of Fuzzy logic . 4
  • 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 5
  • 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 . 6
  • 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. 8
  • 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. 9
  • 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. 10
  • 11. DIFFERENCE IN CLASSICAL AND FUZZY THEORY 11 CLASSICAL THEORY FUZZY LOGIC
  • 12. WORKING PRINCIPLE BLOCK DIAGRAM OF POWER THEFT PROTECTION 12
  • 13. WORKING PRINCIPLE BLOCK DIAGRAM OF POWE QUALITY 13
  • 14. EXAMPLES OF MATLAB RESULTS 14  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. 15
  • 16. RESULT OF POWER THEFT: VOLTAGE IS BROUGHT DOWN BELOW THE CRITICAL VALUE IN CASE OF POWER THEFT. 16
  • 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. 17
  • 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. 18