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Naturally clamped zero current commutated soft-switching current-fed push–pull dc dc converter analysis design and experimental results

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Final Year IEEE Projects for BE, B.Tech, ME, M.Tech,M.Sc, MCA & Diploma Students latest Java, .Net, Matlab, NS2, Android, Embedded,Mechanical, Robtics, VLSI, Power Electronics, IEEE projects are given absolutely complete working product and document providing with real time Software & Embedded training......
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Naturally clamped zero current commutated soft-switching current-fed push–pull dc dc converter analysis design and experimental results

  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 NATURALLY CLAMPED ZERO-CURRENT COMMUTATED SOFT-SWITCHING CURRENT-FED PUSH–PULL DC/DC CONVERTER: ANALYSIS, DESIGN, AND EXPERIMENTAL RESULTS 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 “NATURALLY CLAMPED ZERO-CURRENT COMMUTATED SOFT-SWITCHING CURRENT-FED PUSH–PULL DC/DC CONVERTER: ANALYSIS, DESIGN, AND EXPERIMENTAL RESULTS” 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 “NATURALLY CLAMPED ZERO-CURRENT COMMUTATED SOFT-SWITCHING CURRENT-FED PUSH–PULL DC/DC CONVERTER: ANALYSIS, DESIGN, AND EXPERIMENTAL RESULTS” 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 “NATURALLY CLAMPED ZERO-CURRENT COMMUTATED SOFT-SWITCHING CURRENT-FED PUSH–PULL DC/DC CONVERTER: ANALYSIS, DESIGN, AND EXPERIMENTAL RESULTS” 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: Bidirectional converter with high boost ratio and high efficiency is required to connect the low-voltage ESS and high-voltage dc-link bus. Compared with nonisolated topologies, high- frequency (HF) transformer isolated converters are preferred with merits of high step up ratio, galvanic isolation, and flexibility of system configuration. HF transformer isolated converters could be either voltage-fed or current-fed. The voltage-fed converters have low switch voltage ratings enabling the use of switches with low ON-state resistance. This can significantly reduce conduction loss of primary-side switches. However, voltage-fed converters suffer from several limitations, i.e., high pulsating current at input, limited soft-switching range, rectifier diode ringing, duty cycle loss (if inductive output filter), high circulating current through devices and magnetics, and relatively low efficiency for high-voltage amplification and high-input current applications. Compared with voltage-fed converters, current-fed converters exhibit smaller input current ripple, lower diode voltage rating, lower transformer turns-ratio, negligible diode ringing, no duty cycle loss, and easier current control ability. Besides, current-fed converters can precisely control the charging and discharging current of ESS, which helps achieving higher charging/ discharging efficiency. Thus, current-fed converter is more feasible for the application of ESS in FCVs
  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: The Push-Pull topology is basically a Forward converter with two primaries. The primary switches alternately power their respective windings. When Q1 is active current flows through D1.When Q2 is active current flows through D2. The secondary is arranged in a center tapped configuration as shown. The output filter sees twice the switching frequency of either Q1 or Q2. The transfer function is similar to the Forward converter, where “D” is the duty cycle of a given primary that accounts for the “2 X” term. When neither Q1 nor Q2 are active the output inductor current splits between the two output diodes. A Push-Pull Converter is a Buck type converter with a dual drive winding isolation transformer. Push-Pull transformers and filters are much smaller than standard Forward converter filters. Compared with nonisolated topologies, high-frequency (HF) transformer isolated converters are preferred with merits of high step up ratio, galvanic isolation, and flexibility of system configuration . HF transformer isolated converters could be either voltage-fed or currentfed . Advantages and disadvantages of both types are compared in . The voltage-fed converters have low switch voltage ratings enabling the use of switches with low ON-state resistance. This can significantly reduce conduction loss of primary-side switches. However, voltage-fed converters suffer from several limitations, i.e., high pulsating current at input, limited soft-switching range, rectifier diode ringing, duty cycle loss (if inductive output filter), high circulating current through devices and magnetics, and relatively low efficiency for high-voltage amplification and high-input current applications.
  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 EXISTING SYSTEM: In this paper, a novel secondary modulation-based naturally clamped soft-switching bidirectional snubberless current-fed push–pull converter is proposed. Natural voltage clamping (NVC) with ZCS of primary devices is achieved by proposed secondary modulation and therefore avoids the need of passive snubbers or active clamp making it snubberless. Switching losses are reduced significantly owing to ZCS of primary switches and ZVS of secondary switches that permits HF switching operation with smaller magnetics
  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 PROPOSED SYSTEM: In this paper, a novel secondary modulation-based naturally clamped soft-switching bidirectional snubberless current-fed push–pull converter is proposed. Natural voltage clamping (NVC) with ZCS of primary devices is achieved by proposed secondary modulation and therefore avoids the need of passive snubbers or active clamp making it snubberless. Switching losses are reduced significantly owing to ZCS of primary switches and ZVS of secondary switches that permits HF switching operation with smaller magnetics
  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 ADVANTAGES:  High gain  Soft switching operation in switches
  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 BLOCK DIAGRAM:
  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 TOOLS AND SOFTWARE USED:  MPLAB – microcontroller programming.  ORCAD – circuit layout.  MATLAB/Simulink – Simulation
  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 APPLICATIONS:  FCVs.  Front-end dc/dc power conversion for renewable (fuel cells/PV) inverters. UPS, microgrid, V2G, and energy storage
  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 CONCLUSION: This paper presents a novel soft-switching snubberless bidirectional current-fed isolated push–pull dc/dc converter for ap- Fig. 13. Loss comparison of proposed converter at full load condition. plication of the ESS in FCVs. A novel secondary-side modulation method is proposed to eliminate the problem of voltage spike across the semiconductor devices at turn-off. The above claimed ZCC and NVC of primary devices without any snubber are demonstrated and confirmed by the simulation and experimental results. ZCS of primary-side devices and ZVS of secondary-side devices are achieved, which reduces the switching losses significantly. Soft- switching is inherent and is maintained independent of load. Once ZCC, NVC, and soft switching are designed to be obtained at rated power, it is guaranteed to happen at reduced load unlike voltage-fed converters. Turn-on switching transition loss of primary devices is also shown to be negligible.
  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 REFERENCES: [1] A. Khaligh and Z. Li, “Battery, ultracapacitor, fuel cell, and hybrid energy storage systems for electric, hybrid electric, fuel cell, and plug-in hybrid electric vehicles: State of the art,” IEEE Trans. Veh. Technol., vol. 59, no. 6, pp. 2806–2814, Oct. 2009. [2] A. Emadi and S. S. Williamson, “Fuel cell vehicles: Opportunities and challenges,” in Proc. IEEE Power Eng. Soc., 2004, pp. 1640–1645. [3] K. Rajashekhara, “Power conversion and control strategies for fuel cell vehicles,” in Proc. IEEE Annu. Conf. Ind. Electron. Soc., 2003, pp. 2865– 2870. [4] A. Emadi, S. S.Williamson, and A. Khaligh, “Power electronics intensive solutions for advanced electric, hybrid electric, and fuel cell vehicular power systems,” IEEE Trans. Power Electron., vol. 21, no. 3, pp. 567– 577, May 2006.

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