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Nonisolated high step up dc–dc converters adopting switched-capacitor cell

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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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Nonisolated high step up dc–dc converters adopting switched-capacitor cell

  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 NON ISOLATED HIGH STEP-UP DC-DC CONVERTERS ADOPTING SWITCHED- CAPACITOR CELL 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 “NON ISOLATED HIGH STEP-UP DC-DC CONVERTERS ADOPTING SWITCHED-CAPACITOR CELL” 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 “NON ISOLATED HIGH STEP-UP DC-DC CONVERTERS ADOPTING SWITCHED-CAPACITOR CELL” 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 “NON ISOLATED HIGH STEP-UP DC-DC CONVERTERS ADOPTING SWITCHED-CAPACITOR CELL” 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: In a photovoltaic (PV)- or fuel-cell-based gridconnected power system, a high step-up dc–dc converter is required to boost the low voltage of a PV or fuel cell to a relatively high bus voltage for the downstream dc–ac grid-connected inverter. To integrate the advantages of the high voltage gain of a switched-capacitor (SC) converter and excellent output regulation of a switching-mode dc–dc converter, a method of combining the two types of converters is proposed in this paper. The basic idea is that when the switch is turned on, the inductor is charged, and the capacitors are connected in series to supply the load, and when the switch is turned off, the inductor releases energy to charge multiple capacitors in parallel, whose voltages are controlled by a pulsewidth modulation technique. Thus, a high voltage gain of the dc–dc converter can be obtained with good regulation. Based on this principle, a series of new topologies are derived, and the operating principles and voltage gains of the proposed converters are analyzed. Finally, the design of the proposed converter is given, and the experiment results are provided to verify the theoretical analysis.
  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 mass usage of traditional fossil energy has adversely affected the environment on a global scale, such as environmental pollution and greenhouse effect. Meanwhile, there has been a growing demand for energy with the development of society. Since traditional fossil energy is not renewable, it is faced with the problem of energy shortage. Solar energy and hydrogen energy are promising, and photovoltaic (PV) and fuel cell power generation as the utilization method of the two new energy types have been applied on a large scale. In a single-phase system with a two-stage structure, if the line voltage is 220 V, the bus voltage of the grid-connected inverter needs to be as high as 380 V. However, the output voltages of PV and fuel cells are generally ranged from 25 to 45 V, which are much lower than the bus voltage. Thus, a dc–dc converter with a high voltage gain is needed to boost the outputs of PV and fuel cells. By increasing the turns ratio of the transformer in isolated converters, a high voltage gain can be obtained. However, a too large turns ratio will lead to a large leakage inductor. As a result, the voltage stress of the switch will be increased, whereas the efficiency of the converter is degraded
  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: A boost converter (step-up converter) is a DC-to-DC power converter with an output voltage greater than its input voltage. It is a class of switched-mode power supply (SMPS) containing at least two semiconductors (a diode and a transistor) and at least one energy storage element, a capacitor, inductor, or the two in combination. Filters made of capacitors (sometimes in combination with inductors) are normally added to the output of the converter to reduce output voltage ripple.
  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: The voltage gain of the SC converter is high, but the output voltage is not regulated. The output regulation of the nonisolated switching-mode dc–dc converter is excellent, but the voltage gain cannot be too high for achieving high efficiency. This paper proposes a combination method of the SC converter and the switching-mode dc–dc converter. The basic approach is introducing multiple capacitors into the switching-mode dc–dc converters. When the switch is off, the energy released from the inductor is used to charge the capacitors in parallel. When the switch is on, the capacitors are connected in series to supply the load. Thus, the voltage gain is increased, and the duty cycle is decreased, leading to small ripple current and turnoff current of the switch, and high efficiency can be expected. Meanwhile, the voltages of the capacitors are well regulated, thus achieving a tightly regulated output voltage. In addition, the new converters proposed in this paper can be infinitely extended when an enormous voltage gain is needed.
  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:  Voltage gain is increased.  High efficiency
  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: INPUT DC SUPPLY LOADBOOST / BUCK–BOOST BASED CONVERTER 12V DC OPTO COUPLER CIRCUIT 5V DC PIC CONTROLLER WITH BUFFER
  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:  PV and fuel cells.
  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: Based on the respective merits of the SC converter and the switching-mode dc–dc converter, a new method of combination of the SC converter and switching-mode dc–dc converter has been proposed. The combination approach is that when the switch is turned off, the energy stored in the inductor is released to charge the multiple capacitors in parallel whose voltages are controlled by a pulsewidth modulation technique; when the switch is turned on, the capacitors are in series to supply the load. Thus, the voltage gain of the dc–dc converter is increased. The operating mode of a high step-up dc–dc converter adopting an SC cell proposed in this paper was analyzed, andan experiment was conducted. The results indicate that the converters proposed in this paper can steadily operate and that the performance is good.
  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] J. Leyva-Ramos, J. M. Lopez-Cruz, M. G. Ortiz-Lopez, and L. H. Diaz-Saldierna, “Switching regulator using a high step-up voltage converter for fuel-cell modules,” IET Power Electron., vol. 6, no. 8, pp. 1626–1633, Sep. 2013. [2] G. Velasco-Quesada, F. Guinjoan-Gispert, R. Piqué-López, M. Román-Lumbreras, and A. Conesa-Roca, “Electrical PV array reconfiguration strategy for energy extraction improvement in gridconnected PV systems,” IEEE Trans. Ind. Electron., vol. 56, no. 11, pp. 4319–4331, Nov. 2009. [3] K. Tseng and C. Huang, “High step-up high-efficiency interleaved converter with voltage multiplier module for renewable energy system,” IEEE Trans. Ind. Electron., vol. 61, no. 3, pp. 1311–1319, Mar. 2014. [4] C. Young, M. Chen, T. Chang, C. Ko, and K. Jen, “Cascade Cockcroft–Walton voltage multiplier applied to transformerless high stepup dc–dc converter,” IEEE Trans. Ind. Electron., vol. 60, no. 2, pp. 523– 537, Feb. 2013 . [5] S. Chen, T. Liang, L. Yang, and J. Chen, “A boost converter with capacitor multiplier and coupled inductor for ac module applications,” IEEE Trans. Ind. Electron., vol. 60, no. 4, pp. 1503–1511, Apr. 2013

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