Simulation of Harmonics Filters To Reduce Harmonics Distortion By Using MATLAB
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This project focuses on the simulation of harmonic filters using MATLAB to reduce harmonic distortion in electric power systems. It details the sources and effects of harmonics, harmonic filtering techniques, and compares passive and active filters, highlighting their advantages and disadvantages. The study concludes that a three-phase passive filter effectively reduces specific harmonic distortions to satisfactory levels, demonstrating its practical application in industrial systems.
Simulation of Harmonics Filters To Reduce Harmonics Distortion By Using MATLAB
- 1. Project on Simulation of Harmonics Filters To Reduce Harmonics Distortion Using MATLAB Members: Guided By: 1) Asha D. Rahane Prof.Piyush Dorale 2) Radhika S. Dhawale 3) Sayali N. Sawarkar 4) Shubhangi A. Bhatkar Mauli Group Of Institution’s College Of Engineering And Technology, Shegaon
- 2. CONTENTS • INTRODUCTION • HARMONIC SOURCES AND ITS EFFECTS • HARMONIC FILTERING TECHNIQUES • BLOCK DIAGRAM • OUTPUT • ADVANTAGES AND DISADVANTAGES • APPLICATON • CONCLUSION
- 3. INTRODUCTION The purpose of this project is to help users of electric power to understand harmonic distortion and its sources, to recognize if it is present and to take steps to reduce it or minimize its effects. In this project, harmonics in industrial power system and various harmonic mitigation techniques for industrial power supply systems are firstly described. Then, the harmonic problem in industrial power supply system detailed analysis of harmonic filter simulated by Matlab/Simulink.
- 4. HARMONIC SOURCES AND ITS EFFECTS Harmonics are sinusoidal voltages or currents having frequencies that are integer multiples of the frequency at which the supply system is designed to operate. CAUSES Non linear loads Industrial loads EFFECTS Overheating of conductors and transformer Decrease in efficiency Increase in losses
- 5. HARMONIC FILTERING TECHNIQUES Harmonic filters can be mainly classified into two: Passive filtering techniques Active filtering techniques 1) Active Filtering Techniques The more sophisticated active filtering concepts operate in a wide frequency range, adjusting their operation to the resultant harmonic spectrum.
- 6. 2)Passive Filtering Technique One of the most common methods for control of harmonic distortion in industry is the use of passive filtering techniques that make use of single- tuned or band-pass filters. Fig.1:(a) Single- tuned (b) 1st order high-pass (c) 2nd order high- pass (d)3rd order high-pass (e) C-type.
- 7. ADVANTAGES AND DISADVANTAGES OF PASSIVE FILTER OVER ACTIVE FILTER Advantages of Passive Filter over Active Filter: • Less costly than active filter. • Passive filters can be used for small loads as well as large loads in a power system. Disadvantages of Passive Filter over Active Filter: • Circuit becomes bulky as inductors are used.
- 14. ADVANTAGES • Total harmonic distortion of current obtained is 25.51% • Three winding transformer is use. • Economical and essential way for harmonic reduction is use. • Reduces 5th ,7th 11th and higher order harmonics .
- 15. DISADVANTAGES • All filters are kept active all the time. • This protection scheme is use only for low and medium industrial system.
- 16. CONCLUSION In this project, three-phase passive filter not only reducing for 11th harmonic but also considering for distortion of 5th and 7th harmonic of the system where harmonics are produced due to a twelve-pulse converter load. The distortion of power supply current was diminished to a satisfactory level with THD = 25.51% and voltage with THD = 26.26%
- 17. REFERENCES • 2015 International Conference on Energy Systems and Applications (ICESA 2015)Dr. D. Y. Patil Institute of Engineering and Technology, Pune, India 30 Oct - 01 Nov, 2015 Design and Development of Passive Filter and Comparative Study of Simulation Results of Passive and Active Filter • Snehal Gadekar, Namrata Kulkarni, Miss.Sheetal Mhetre, Prof.H.H.Kulkarni P.E.S.’s Modern College of Engineering, Pune 411-05 Design and Development of Passive Filter and Comparative Study of Simulation Results of Passive and Active Filter • Shihong Wu，Junnan Wang, Rui Huang，Dan Guo School of Information and Electrical Engineering Shenyang Agricultural University, Shenyang, Liaoning,110866, China Harmonic Current Detection and Simulation with Active Power Filter Based on Simulink
- 18. Conti… • International Journal of Innovative Research in Computer and Communication Engineering An ISO 3297: 2007 Certified Organization Vol.3, Special Issue 5, May 2015International Conference On Advances in Computer & Communication Engineering (ACCE - 2015)on 5th & 6th May 2015, Organized by Department of CSE, Vemana Institute of Technology, Bengaluru, India Copyright to IJIRCCE www.ijircce.com 254 Study on Mitigation of Harmonics by Using Passive Filter and Active Filter • American National Standard (ANSI) IEEE SM 519-1992 (Revision of IEEE SM 519-1981)n IEEE Recommended Practices and Requirements for Harmonic Control in Electrical Power Systems
- 19. Thank You…