an interleaved high step up dc dc coverter PPT.pptx

interleaved high step up dc dc converter

1. AN INTERLEAVED HIGH STEPUP DC-DC CONVERTER BASED ON INTEGRATION OF COUPLED INDUCTOR AND BUILTIN TRANSFORMER WITH SWITCHED CAPACITOR CELLS FOR RENEWABLE ENERGY APPLICATIONS

2. RANIPPETTAI ENGINEERING COLLEGE THENKADAPPANTHANGAL -632 513 ANNA UNIVERSITY, CHENNAI-600 025 MASTER OF ENGINEERING IN POWER ELECTRONICS AND DRIVES Submitted by SOPHIA C R Reg.No:512122415003 Date: 12.03.24

3. ABSTRACT This research proposes an innovative interleaved high step-up DC-DC converter designed for optimal performance in renewable energy applications. The converter integrates a coupled inductor and a built-in transformer, enhancing the overall efficiency and power density. Additionally, switched capacitor cells are incorporated to further improve voltage step-up capabilities. The synergy of these elements results in a compact and efficient converter capable of effectively harnessing energy from renewable sources. The proposed converter demonstrates superior performance in terms of high voltage gain, reduced voltage stress on components, and increased overall efficiency, making it a promising solution for various renewable energy systems.

4. INTRODUCTION In the pursuit of advancing renewable energy technologies, this study introduces an interleaved high step-up DC-DC converter that leverages the integration of a coupled inductor and a built-in transformer, complemented by switched capacitor cells. The interleaved architecture enhances the converter's efficiency and power density, while the coupled inductor and built-in transformer contribute to improved voltage step-up capabilities. The incorporation of switched capacitor cells further optimizes the converter's performance. With a focus on addressing the challenges of renewable energy applications, this research aims to provide an innovative solution that enhances voltage gain, reduces component stress, and boosts overall efficiency, thereby contributing to the sustainable integration of renewable energy sources into power systems.

5. EXISTING SYSTEM BLOCK DIAGRAM

6. EXISTING SYSTEM In the existing renewable energy system, a wind turbine captures and converts kinetic energy from the wind into electrical power, producing variable voltage outputs. This generated power is stored in a battery, acting as an energy storage unit to address the intermittent nature of wind energy. A voltage sensor is employed to monitor the battery's voltage levels, providing real-time data on its state. A microcontroller serves as the central control unit, receiving feedback from the voltage sensor and making decisions to optimize energy management. To facilitate grid integration or power various applications, an interleaved high step-up DC-DC converter is employed. This converter utilizes a coupled inductor and a built-in transformer, combined with switched capacitor cells, to efficiently step up the voltage while maintaining stability. The resulting DC output from the converter is utilized as a stable power source, allowing for seamless incorporation of wind and battery energy into the existing power system.

7. PROBLEM STATEMENT The current landscape of renewable energy systems grapples with challenges related to the efficiency and voltage regulation of DC-DC converters, particularly when integrating multiple renewable energy sources. The existing systems often encounter limitations in achieving high step-up ratios essential for maximizing power extraction from sources like solar and wind. These challenges are exacerbated by the lack of effective integration of coupled inductors and transformers in conventional converters, leading to suboptimal performance and energy losses. Additionally, the intermittent nature of renewable sources poses difficulties in maintaining a stable DC output, hindering the seamless integration of renewable energy into power grids. Consequently, there is a pressing need to address these issues and develop innovative solutions, such as the proposed interleaved high step-up DC-DC converter, to enhance the overall efficiency and reliability of renewable energy applications.

8. DISADVANTAGE Complexity and Cost Size and Weight Efficiency at Light Loads Control Circuitry Complexity Voltage Stress

9. PROPOSED SYSTEM BLOCK DIAGRAM

10. PROPOSED SYSTEM The proposed system aims to create an advanced renewable energy setup by integrating wind and solar sources with an efficient energy storage solution. A wind turbine captures kinetic energy from the wind, and solar panels harness sunlight, generating variable electrical power from both sources. This fluctuating energy is stored in a battery to ensure a consistent power supply. A voltage sensor continuously monitors the battery status, providing real-time data to a microcontroller. The microcontroller, acting as the control center, processes the information and optimizes energy flow. An interleaved high step-up DC-DC converter, employing coupled inductors and a built-in transformer along with switched capacitor cells, is utilized to efficiently step up the voltage. A Pulse Width Modulation (PWM) generator ensures precise control of the converter. The DC output from the converter is then displayed on an LCD, offering real-time information on power generation and consumption. This comprehensive system seeks to enhance renewable energy utilization, providing stable and regulated DC power for diverse applications, while the LCD interface offers user-friendly monitoring capabilities.

11. . Simulation Results

12. CONCLUSION In conclusion, the proposed interleaved high step-up DC-DC converter, integrating coupled inductors and a built-in transformer with switched capacitor cells, presents a promising solution for enhancing the performance of renewable energy systems. The converter demonstrates improved voltage step-up capabilities, making it well-suited for efficiently harnessing energy from sources like wind or solar. While the design complexity, cost considerations, and potential efficiency challenges at light loads pose drawbacks, the overall advantages in terms of increased efficiency, reduced voltage stress, and enhanced power density make this converter a valuable contribution to the evolving field of renewable energy applications. Further research and development efforts can address the identified limitations and optimize the converter's implementation for widespread and effective integration into diverse renewable energy systems.

13. FUTURESCOPE The "Interleaved High Step-up DC-DC Converter based on Integration of Coupled Inductor and Built-in Transformer with Switched Capacitor Cells for Renewable Energy Applications" holds immense potential for future advancements in the field of renewable energy. Looking ahead, one key avenue of exploration lies in the optimization of control algorithms and the incorporation of smart technologies. Future iterations could integrate advanced sensing and machine learning techniques to enhance the converter's adaptability to dynamic environmental conditions, ensuring optimal performance across a broader spectrum of renewable energy scenarios.    

14. REFERENCE [1] M. L. Alghaythi , R. M. O’Connell, N. E. Islam, M. M. S. Khan, and J. M. Guerrero, ‘‘A high step-up interleaved DC-DC converter with voltage multiplier and coupled inductors for renewable energy systems,’’ IEEE Access, vol. 8, pp. 123165–123174, 2020. [2] J. Ai, M. Lin, H. Liu, and P. Wheeler, ‘‘A family of high step–up DC–DC converters with Nc step-up cells and M–source clamped circuits,’’ IEEE Access, vol. 9, pp. 65947–65966, 2021. [3] S. Hasanpour , Y. P. Siwakoti , A. Mostaan , and F. Blaabjerg , ‘‘New semiquadratic high step-up DC/DC converter for renewable energy applications,’’ IEEE Trans. Power Electron., vol. 36, no. 1, pp. 433–446, Jan. 2021. [4] R. Rahimi , S. Habibi , M. Ferdowsi , and P. Shamsi , ‘‘Z-source-based high step-up DC-DC converters for photovoltaic applications,’’ IEEE J. Emerg . Sel. Topics Power Electron., early access, Dec. 1, 2021, doi : 10.1109/JESTPE.2021.3131996.

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