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High gain resonant switched-capacitor cell-based dcdc converter for offshore wind energy systems

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High gain resonant switched-capacitor cell-based dcdc converter for offshore wind energy systems

To Get this projects Call : 9566355386 / 99625 88976
Visit : www.lemenizinfotech.com / www.ieeemaster.com
Mail : projects@lemenizinfotech.com

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High gain resonant switched-capacitor cell-based dcdc converter for offshore wind energy systems

  1. 1. Do Your Projects With Domain Experts… Copyright © 2015 LeMeniz Infotech. All rights reserved Page number 1 LeMeniz Infotech 36, 100 Feet Road, Natesan Nagar, Near Indira Gandhi Statue, Pondicherry-605 005. Call: 0413-4205444, +91 9566355386, 99625 88976. Web : www.lemenizinfotech.com / www.ieeemaster.com Mail : projects@lemenizinfotech.com High-Gain Resonant Switched-Capacitor Cell- Based DC/DC Converter for Offshore Wind Energy Systems Abstract Introduction: Offshore wind farms are growing rapidly because of their comparatively more stable wind conditions than onshore and land-based wind farms. Offshore 5–10-MW marine turbines are becoming more attractive for the wind power industry. In particular, they increase the efficiency and reduce generation cost, compared to previous wind turbine technologies. The power capacities of these offshore behemoths result in an increase in the size of each component. Therefore, offshore wind turbine manufacturers are attempting to create an optimal design for large marine turbines. The optimized design of offshore wind turbines should cope with the following challenges to make high-power conversion systems a feasible alternative. Bulky and huge electrical components have high investment costs because of the more difficult erection and the equipment transportation from the shore to the installation sites. In addition, there is a greater need for high reliability due to the inherent lack of turbine access at sea, which makes operation and maintenance
  2. 2. Do Your Projects With Domain Experts… Copyright © 2015 LeMeniz Infotech. All rights reserved Page number 2 LeMeniz Infotech 36, 100 Feet Road, Natesan Nagar, Near Indira Gandhi Statue, Pondicherry-605 005. Call: 0413-4205444, +91 9566355386, 99625 88976. Web : www.lemenizinfotech.com / www.ieeemaster.com Mail : projects@lemenizinfotech.com more difficult. Therefore, an optimal power conversion system should feature high-power density, high efficiency, high reliability, and low costs for high power offshore wind energy applications. Existing system: High voltage dc (HVDC) transmission promises a very flexible and efficient technology for offshore wind farms that requires power conversion systems to step-up and control the wind turbine output. A conventional HVDC system uses an ac line frequency (50/60 Hz) transformer to boost the voltage and ac/dc converters for rectification and power flow control. This technology is robust and reliable, but it causes a considerable increase in weight and volume, which leads to higher installation cost. A high-power density can be obtained by replacing the bulky 50/60-Hz transformers with high-frequency transformers. Unfortunately, high-frequency transformers with large turn ratios are difficult to design at high voltages and mega power levels because of the enormous expense of the magnetic material, core, and dialectic losses. One of the key-enabling components for HVDC is the high power dc/dc conversion system because it has a rigid structure, is easy to control system and more compact.
  3. 3. Do Your Projects With Domain Experts… Copyright © 2015 LeMeniz Infotech. All rights reserved Page number 3 LeMeniz Infotech 36, 100 Feet Road, Natesan Nagar, Near Indira Gandhi Statue, Pondicherry-605 005. Call: 0413-4205444, +91 9566355386, 99625 88976. Web : www.lemenizinfotech.com / www.ieeemaster.com Mail : projects@lemenizinfotech.com Proposed system: The paper presents a new high-gain RSC dc/dc converter for offshore wind energy systems. The proposed converter combines the output of two modular cells to reduce the device count, output capacitance requirements, and total capacitor power rating. The principle of a soft-switching operation and output voltage analysis of the proposed converter are described in detail. The output capacitors are charged and discharged continuously by an 180◦ phase shift with respect to each other to eliminate the output voltage ripples without adding extra components. In this paper, the series-modular and cascade RSC configurations are introduced to increase the reliability and reduce the control complexity. These configurations are verified by a simulation and their efficiency, volume, weight, and device count are compared with a counterpart to highlight its advantages for high voltage and high power offshore winds applications. A comprehensive collection of the experiments are carried out to evaluate the feasibility of the proposed converter.
  4. 4. Do Your Projects With Domain Experts… Copyright © 2015 LeMeniz Infotech. All rights reserved Page number 4 LeMeniz Infotech 36, 100 Feet Road, Natesan Nagar, Near Indira Gandhi Statue, Pondicherry-605 005. Call: 0413-4205444, +91 9566355386, 99625 88976. Web : www.lemenizinfotech.com / www.ieeemaster.com Mail : projects@lemenizinfotech.com Block diagram: Gate driver circuit PIC controller circuit Input AC Load BUFFER circuit 5VDC 12 V DC Rectifier Filter 3 stage switched capacitor converter module
  5. 5. Do Your Projects With Domain Experts… Copyright © 2015 LeMeniz Infotech. All rights reserved Page number 5 LeMeniz Infotech 36, 100 Feet Road, Natesan Nagar, Near Indira Gandhi Statue, Pondicherry-605 005. Call: 0413-4205444, +91 9566355386, 99625 88976. Web : www.lemenizinfotech.com / www.ieeemaster.com Mail : projects@lemenizinfotech.com Tools and software used:  MPLAB – microcontroller programming.  ORCAD – circuit layout.  MATLAB/Simulink – Simulation.

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