International Journal of Engineering Research in Electrical and Electronic Engineering (IJEREEE)

A High Gain Dc-Dc Converter with Coupled Inductor and Charge Pump

Author : Anitha K ¹ Mrs.Rahumath Beeby ² Mrs. Shoma Mani ³

Date of Publication :7th August 2016

Abstract: The Green Energy sources such as Photovoltaic cell and Fuel cell are more popular nowadays because of environment pollution and energy shortage. However, the output of these green energy sources seems to be very lowcompared to the dc bus voltage. Thus, a high step-up voltage gain dc-dc converter with high efficiency should be introduced to boost the voltage, and then this green energy can be connected to the grid. In order to obtain a high voltage gain, high efficiency converter, this paper proposes a dual switchdc-dc converter with three-winding-coupled inductor and charge pump. This converter provides a high step up voltage gain with low voltage/current stress on the power switches. It also can achieve a high gain with a small duty cycle, which is helpful to reduce the peak current through the power device and helps to improve the efficiency. A comparisonbetween performance of the proposed converter and previous high step up converters was conducted. Simulation results verify the correctness of the analysis.

Reference :

1. Yu Tang, Member, IEEE, Dongjin Fu, JiarongKan, 'Ting Wang, Dual Switches DC/DC Converter With Three Winding-Coupled Inductor and Charge Pump'IEEE Trans. Power Electronics., vol 31 No.1 January 2016.
2. G.Wu, X. Ruan, and Z. Ye, 'Non-isolated high step-up DC-DC converters adopting switchedcapacitor cell,' IEEE Trans. Ind. Electron,vol. 62, no. 1, pp. 383393, Jan. 2015.
3. P. K. Maroti, M. S. B. Ranjana, and D. K. Prabhakar, 'A novel high gain switched inductor multilevel buck-boost DC-DC converter for solar applications,' Proc.IEEE . Int. Conf. Electr. Energy System, 2014, pp.152156.
4. S. Lee, P. Kim, and S. Choi, 'High step-up softswitched converters using voltage multiplier cells,'IEEETrans.Power Electron., vol. 28,no. 7, pp. 33793387, Jul. 2013.
5. W. H. Li, L. L. Fan, and Y. Zhao, 'High-step-up and high-efficiency fuelcell power-generation system with active-clamp ybackforwardconverter,'IEEE trans..Ind. Electron., vol. 59, no. 1, pp. 599610, Aug.2012.
6. W. H. Li, L. L. Fan, and Y. Zhao, 'High-step-up and high-efficiency fuelcell power-generation system with active-clamp ybackforwardconverter,'IEEE trans..Ind. Electron., vol. 59, no. 1, pp. 599610, Aug.2012.
7. L. S. Yang, T. J. Liang, and J. F. Chen, 'Transformerless DCDC converters with high step-up voltage gain,' IEEE Trans. Ind. Electron.,vol. 56, no. 8, pp. 31443152, Aug. 2009.
8. T. J. Liang and K. C. Tseng, 'Analysis of integrated boost-fyback step-up converter',IEEE Trans. Power Electron., vol.