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

this represent a method of power theft prevention by fuzzy logic code in matlab help
Published on: Mar 4, 2016

#### Transcripts - 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
• 19. THANK YOU ANY QUERIES? 19