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Resonance analysis and soft switching design of isolated boost converter with coupled inductors for vehicle inverter application

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Resonance analysis and soft switching design of isolated boost converter with coupled inductors for vehicle inverter application

  1. 1. OUR OFFICES @CHENNAI/ TRICHY/ KARUR / ERODE / MADURAI / SALEM / COIMBATORE / BANGALORE / HYDRABAD CELL: 9894917187 | 875487 1111 / 2111 / 3111 / 4111 / 5111 / 6111 Visit: www.ecwaytechnologies.com | www.ecwayprojects.com Mail to: ecwaytechnologies@gmail.com ECWAY TECHNOLOGIES IEEE SOFTWARE | EMBEDDED | MECHANICAL | ROBOTICS PROJECTS DEVELOPMENT RESONANCE ANALYSIS AND SOFT-SWITCHING DESIGN OF ISOLATED BOOST CONVERTER WITH COUPLED INDUCTORS FOR VEHICLE INVERTER APPLICATION By A PROJECT REPORT Submitted to the Department of electronics & communication Engineering in the FACULTY OF ENGINEERING & TECHNOLOGY In partial fulfillment of the requirements for the award of the degree Of MASTER OF TECHNOLOGY IN ELECTRONICS & COMMUNICATION ENGINEERING APRIL 2016
  2. 2. OUR OFFICES @CHENNAI/ TRICHY/ KARUR / ERODE / MADURAI / SALEM / COIMBATORE / BANGALORE / HYDRABAD CELL: 9894917187 | 875487 1111 / 2111 / 3111 / 4111 / 5111 / 6111 Visit: www.ecwaytechnologies.com | www.ecwayprojects.com Mail to: ecwaytechnologies@gmail.com ECWAY TECHNOLOGIES IEEE SOFTWARE | EMBEDDED | MECHANICAL | ROBOTICS PROJECTS DEVELOPMENT CERTIFICATE Certified that this project report titled “RESONANCE ANALYSIS AND SOFT-SWITCHING DESIGN OF ISOLATED BOOST CONVERTER WITH COUPLED INDUCTORS FOR VEHICLE INVERTER APPLICATION” is the bonafide work of Mr. _____________Who carried out the research under my supervision Certified further, that to the best of my knowledge the work reported herein does not form part of any other project report or dissertation on the basis of which a degree or award was conferred on an earlier occasion on this or any other candidate. Signature of the Guide Signature of the H.O.D Name Name
  3. 3. OUR OFFICES @CHENNAI/ TRICHY/ KARUR / ERODE / MADURAI / SALEM / COIMBATORE / BANGALORE / HYDRABAD CELL: 9894917187 | 875487 1111 / 2111 / 3111 / 4111 / 5111 / 6111 Visit: www.ecwaytechnologies.com | www.ecwayprojects.com Mail to: ecwaytechnologies@gmail.com ECWAY TECHNOLOGIES IEEE SOFTWARE | EMBEDDED | MECHANICAL | ROBOTICS PROJECTS DEVELOPMENT DECLARATION I hereby declare that the project work entitled “RESONANCE ANALYSIS AND SOFT- SWITCHING DESIGN OF ISOLATED BOOST CONVERTER WITH COUPLED INDUCTORS FOR VEHICLE INVERTER APPLICATION” Submitted to BHARATHIDASAN UNIVERSITY in partial fulfillment of the requirement for the award of the Degree of MASTER OF APPLIED ELECTRONICS is a record of original work done by me the guidance of Prof.A.Vinayagam M.Sc., M.Phil., M.E., to the best of my knowledge, the work reported here is not a part of any other thesis or work on the basis of which a degree or award was conferred on an earlier occasion to me or any other candidate. (Student Name) (Reg.No) Place: Date:
  4. 4. OUR OFFICES @CHENNAI/ TRICHY/ KARUR / ERODE / MADURAI / SALEM / COIMBATORE / BANGALORE / HYDRABAD CELL: 9894917187 | 875487 1111 / 2111 / 3111 / 4111 / 5111 / 6111 Visit: www.ecwaytechnologies.com | www.ecwayprojects.com Mail to: ecwaytechnologies@gmail.com ECWAY TECHNOLOGIES IEEE SOFTWARE | EMBEDDED | MECHANICAL | ROBOTICS PROJECTS DEVELOPMENT ACKNOWLEDGEMENT I am extremely glad to present my project “RESONANCE ANALYSIS AND SOFT- SWITCHING DESIGN OF ISOLATED BOOST CONVERTER WITH COUPLED INDUCTORS FOR VEHICLE INVERTER APPLICATION” which is a part of my curriculum of third semester Master of Science in Computer science. I take this opportunity to express my sincere gratitude to those who helped me in bringing out this project work. I would like to express my Director, Dr. K. ANANDAN, M.A.(Eco.), M.Ed., M.Phil.,(Edn.), PGDCA., CGT., M.A.(Psy.) of who had given me an opportunity to undertake this project. I am highly indebted to Co-Ordinator Prof. Muniappan Department of Physics and thank from my deep heart for her valuable comments I received through my project. I wish to express my deep sense of gratitude to my guide Prof. A.Vinayagam M.Sc., M.Phil., M.E., for her immense help and encouragement for successful completion of this project. I also express my sincere thanks to the all the staff members of Computer science for their kind advice. And last, but not the least, I express my deep gratitude to my parents and friends for their encouragement and support throughout the project.
  5. 5. OUR OFFICES @CHENNAI/ TRICHY/ KARUR / ERODE / MADURAI / SALEM / COIMBATORE / BANGALORE / HYDRABAD CELL: 9894917187 | 875487 1111 / 2111 / 3111 / 4111 / 5111 / 6111 Visit: www.ecwaytechnologies.com | www.ecwayprojects.com Mail to: ecwaytechnologies@gmail.com ECWAY TECHNOLOGIES IEEE SOFTWARE | EMBEDDED | MECHANICAL | ROBOTICS PROJECTS DEVELOPMENT ABSTRACT: The comprehensive resonance analysis and softswitching design of the isolated boost converter with coupled inductors are investigated in this paper. Due to the resonance participated by the voltage doubler capacitor, clamping capacitor, and leakage inductance of coupled inductors, the reverse-recovery problem of the secondary diodes is restrained within the whole operation range. By choosing appropriatemagnetic inductance of the coupled inductors, zero- voltage switching ON of the main MOSFETs is obtained collectively at the same working conditions without any additional devices.Moreover, the range of duty ratio is enlarged to achieve soft switching and an optimal operation point is obtained with minimal input current ripple, when duty ratio approaches 0.5. Additionally, two kinds of resonances are analyzed and an optimized resonance is utilized to achieve better power density. The prototype is implemented for the vehicle inverter requiring a 150W output power, input voltage range varying from 10.8 to 16 V, and 360 V output voltage. Experiment results verify the design and show that the minimum efficiency is about 93.55% and 90.53% at low load and full load, respectively
  6. 6. OUR OFFICES @CHENNAI/ TRICHY/ KARUR / ERODE / MADURAI / SALEM / COIMBATORE / BANGALORE / HYDRABAD CELL: 9894917187 | 875487 1111 / 2111 / 3111 / 4111 / 5111 / 6111 Visit: www.ecwaytechnologies.com | www.ecwayprojects.com Mail to: ecwaytechnologies@gmail.com ECWAY TECHNOLOGIES IEEE SOFTWARE | EMBEDDED | MECHANICAL | ROBOTICS PROJECTS DEVELOPMENT INTRODUCTION: Vehicle inverter is now spreading across the world. Top end Audi and Bavarian Motor Works cars are enjoying comfort and convenience of vehicle inverters. Most traditional vehicle inverters are composed by two stages: dc/dc converter and dc/ac inverter. To achieve 220 V root-mean-square sine wave, the input voltage of dc/ac inverter should be at least 360 Vdc in a highly efficient manner. It is worth noticing that the vehicle battery presents low-voltage characteristic (10.8 to 16 V, typical 12 V), the dc/ac inverter must have a high-voltage conversion ratio dc/dc converter on the front end. Considering life span of vehicle battery, mounting space and natural cooling, dc/dc converter with low-input current ripple, high operation frequency, and high efficiency are required in this application. Besides, galvanic isolation is necessary to meet the safety standards. Current-fed push–pull is suitable for low input voltage, high input current application due to the input inductor. Furthermore, significant topologies are used in fuel cell system and battery sourcing application and active clamping with resonance technology has gained attraction which can realize zero-voltage switching (ZVS) on of MOSFETs or resolve reverse-recovery problem of secondary rectifying diodes. With soft-switching characters, the operation frequency can be high enough to obtain not only high power density but also high efficiency. An active-clamping current-fed push–pull converter has satisfied performance for vehicle inverter application.
  7. 7. OUR OFFICES @CHENNAI/ TRICHY/ KARUR / ERODE / MADURAI / SALEM / COIMBATORE / BANGALORE / HYDRABAD CELL: 9894917187 | 875487 1111 / 2111 / 3111 / 4111 / 5111 / 6111 Visit: www.ecwaytechnologies.com | www.ecwayprojects.com Mail to: ecwaytechnologies@gmail.com ECWAY TECHNOLOGIES IEEE SOFTWARE | EMBEDDED | MECHANICAL | ROBOTICS PROJECTS DEVELOPMENT Comparison of twomentioned converters is listed. However,more detailed resonance analysis still needs to be presented. Optimized resonance will be designed to minimize capacitors volume, and improve power density.
  8. 8. OUR OFFICES @CHENNAI/ TRICHY/ KARUR / ERODE / MADURAI / SALEM / COIMBATORE / BANGALORE / HYDRABAD CELL: 9894917187 | 875487 1111 / 2111 / 3111 / 4111 / 5111 / 6111 Visit: www.ecwaytechnologies.com | www.ecwayprojects.com Mail to: ecwaytechnologies@gmail.com ECWAY TECHNOLOGIES IEEE SOFTWARE | EMBEDDED | MECHANICAL | ROBOTICS PROJECTS DEVELOPMENT EXISTING SYSTEM: The push-pull is a double ended topology i.e. two transistors share the switching function. The transformers flux swing is fully utilized in this topology by symmetrical operation of its core
  9. 9. OUR OFFICES @CHENNAI/ TRICHY/ KARUR / ERODE / MADURAI / SALEM / COIMBATORE / BANGALORE / HYDRABAD CELL: 9894917187 | 875487 1111 / 2111 / 3111 / 4111 / 5111 / 6111 Visit: www.ecwaytechnologies.com | www.ecwayprojects.com Mail to: ecwaytechnologies@gmail.com ECWAY TECHNOLOGIES IEEE SOFTWARE | EMBEDDED | MECHANICAL | ROBOTICS PROJECTS DEVELOPMENT PROPOSED SYSTEM: The comprehensive resonance analysis and soft-switching design of the isolated boost converter with coupled inductors are investigated in this project. Due to the resonance participated by the voltage doubler capacitor, clamping capacitor, and leakage inductance of coupled inductors, the reverse recovery problem of the secondary diodes is restrained within the whole operation range. By choosing appropriate magnetic inductance of the coupled inductors, zero-voltage switching ON of the main MOSFETs is obtained collectively at the same working conditions without any additional devices. The volume of the converter can also be decreased because of smaller transformers and smaller capacitors
  10. 10. OUR OFFICES @CHENNAI/ TRICHY/ KARUR / ERODE / MADURAI / SALEM / COIMBATORE / BANGALORE / HYDRABAD CELL: 9894917187 | 875487 1111 / 2111 / 3111 / 4111 / 5111 / 6111 Visit: www.ecwaytechnologies.com | www.ecwayprojects.com Mail to: ecwaytechnologies@gmail.com ECWAY TECHNOLOGIES IEEE SOFTWARE | EMBEDDED | MECHANICAL | ROBOTICS PROJECTS DEVELOPMENT ADVANTAGES:  An optimized resonance between the two kinds of resonances is used to increase power density and lower converter cost.  Moreover, by choosing appropriate magnetic inductance of the coupled inductors, ZVS on of the main MOSFETs and ZCS off of the secondary diodes can be achieved collectively at the same working conditions without any additional devices.  The reverse recovery problem of the secondary diodes is restrained within the whole operation range.  The range of duty ratio is enlarged to achieve soft switching and an optimal operation point is obtained with minimal input current ripple, when duty ratio approaches 0.5.
  11. 11. OUR OFFICES @CHENNAI/ TRICHY/ KARUR / ERODE / MADURAI / SALEM / COIMBATORE / BANGALORE / HYDRABAD CELL: 9894917187 | 875487 1111 / 2111 / 3111 / 4111 / 5111 / 6111 Visit: www.ecwaytechnologies.com | www.ecwayprojects.com Mail to: ecwaytechnologies@gmail.com ECWAY TECHNOLOGIES IEEE SOFTWARE | EMBEDDED | MECHANICAL | ROBOTICS PROJECTS DEVELOPMENT BLOCK DIAGRAM: INPUT DC SUPPLY SWITCHING CIRCUIT PICCONTROLLER FILTER LOAD BUFFER OPTOISOLATOR12V DC 5V DC COUPLED INDUCTORS VOLTAGE DOUBLER CAPACITOR
  12. 12. OUR OFFICES @CHENNAI/ TRICHY/ KARUR / ERODE / MADURAI / SALEM / COIMBATORE / BANGALORE / HYDRABAD CELL: 9894917187 | 875487 1111 / 2111 / 3111 / 4111 / 5111 / 6111 Visit: www.ecwaytechnologies.com | www.ecwayprojects.com Mail to: ecwaytechnologies@gmail.com ECWAY TECHNOLOGIES IEEE SOFTWARE | EMBEDDED | MECHANICAL | ROBOTICS PROJECTS DEVELOPMENT TOOLS AND SOFTWARE USED:  MPLAB – microcontroller programming.  ORCAD – circuit layout.  MATLAB/Simulink – Simulation
  13. 13. OUR OFFICES @CHENNAI/ TRICHY/ KARUR / ERODE / MADURAI / SALEM / COIMBATORE / BANGALORE / HYDRABAD CELL: 9894917187 | 875487 1111 / 2111 / 3111 / 4111 / 5111 / 6111 Visit: www.ecwaytechnologies.com | www.ecwayprojects.com Mail to: ecwaytechnologies@gmail.com ECWAY TECHNOLOGIES IEEE SOFTWARE | EMBEDDED | MECHANICAL | ROBOTICS PROJECTS DEVELOPMENT APPLICATIONS:  Vehicle inverter applications
  14. 14. OUR OFFICES @CHENNAI/ TRICHY/ KARUR / ERODE / MADURAI / SALEM / COIMBATORE / BANGALORE / HYDRABAD CELL: 9894917187 | 875487 1111 / 2111 / 3111 / 4111 / 5111 / 6111 Visit: www.ecwaytechnologies.com | www.ecwayprojects.com Mail to: ecwaytechnologies@gmail.com ECWAY TECHNOLOGIES IEEE SOFTWARE | EMBEDDED | MECHANICAL | ROBOTICS PROJECTS DEVELOPMENT CONCLUSION: In this paper, resonance analysis and soft-s itching design of an isolated boost converter with coupled inductors are presented. Two kinds of resonance are analyzed to obtain ZVS on of main switches or ZCS off of secondary rectifying diodes. Relationship between the resonances is sketched and an optimized resonance between the two kinds of resonances is used to increase power density and lower converter cost. Moreover, by choosing appropriate magnetic inductance of the coupled inductors, ZVS on of the main MOSFETs and ZCS off of thesecondary diodes can be achieved collectively at the same working conditions without any additional devices. In addition, the restricted range of duty ratio is removed and an optimal operation point with zero input ripple current is gained. At last, a 150 W, 12–360 V high efficiency prototype converter is built to verify the analysis, and the experimental results illustrate that the proposed converter is a competitive candidate for low power and high step-up applications with isolation requirements.
  15. 15. OUR OFFICES @CHENNAI/ TRICHY/ KARUR / ERODE / MADURAI / SALEM / COIMBATORE / BANGALORE / HYDRABAD CELL: 9894917187 | 875487 1111 / 2111 / 3111 / 4111 / 5111 / 6111 Visit: www.ecwaytechnologies.com | www.ecwayprojects.com Mail to: ecwaytechnologies@gmail.com ECWAY TECHNOLOGIES IEEE SOFTWARE | EMBEDDED | MECHANICAL | ROBOTICS PROJECTS DEVELOPMENT REFERENCES: [1] S.-J. Jang, C.-Y. Won, B.-K. Lee, and J. Hur, “Fuel cell generation system with a new active clamping current-fed half-bridge converter,” IEEE Trans. Energy Convers., vol. 22, no. 2, pp. 332–340, Jun. 2007. [2] Z. Zhang, Z. Ouyang, O. C. Thomsen, and M. A. E. Andersen, “Analysis and design of a bidirectional isolated DC–DC converter for fuel cells and supercapacitors hybrid system,” IEEE Trans. Power Electron., vol. 27, no. 2, pp. 848–859, Feb. 2012. [3] O. Hegazy, J. Van Mierlo, and P. Lataire, “Analysis, modeling, and implementation of a multidevice interleaved DC/DC converter for fuel cell hybrid electric vehicles,” IEEE Trans. Power Electron., vol. 27, no. 11, pp. 4445–4458, Nov. 2012. [4] L. Tang and G.-J. Su, “An interleaved reduced-component-count multivoltage bus dc/dc converter for fuel cell powered electric vehicle applications,” IEEE Trans. Power Electron., vol. 44, no. 5, pp. 1638–1644, Sep./Oct. 2008. [5] Y. Park, B. Jung, and S. Choi, “Nonisolated ZVZCS resonant PWM DC– DC converter for high step-up and high-power applications,” IEEE Trans. Power Electron., vol. 27, no. 8, pp. 3568–3575, Aug. 2012.

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