a simple phase shift controlled dc-dc converter for high voltage applications
Aneesh A,Afsal F Rahiman
Published in International Journal of Advanced Research in Electrical and Electronics Engineering
ISSN: 2321-4775 Impact Factor:1.6 Volume:3 Issue:3 Year: 20 December,2016 Pages:109-118
Abstract
With rapid development of renewable energy there is a rise in utilization of isolated DC-DC converters for applications like smart grid and electric vehicles. High efficiency, high gain and high power density are the parameters expected from a normal DC-DC converter, but when it comes to the output voltage, it will be of poor quality. The use of a transformer in the above system can correct this fault. This transformer isolates the Active Boost Rectifier (ABRs) which is composed of a traditional diode rectifier and a switch along with a Voltage Doubler(VD). Replacing inverter with an interleaved DC-AC converter on the primary side helps to generate a voltage from equal or lower input supply. This system can be useful anywhere where one does not have access to mains outlet for example a car, trailer or cottage. It can power appliances like radios, tape recorders, televisions, electric shavers, fluorescent lamps or cell phone charger. A voltage multiplier if implemented instead of the ABR-VD produces high voltage gain and can be used for high voltage applications , this is realized using fast switching diodes with addition of a phase shift control which provides gate pulses for switches on the inverter side by shifting phase angle and producing delay in pulses. This technique if utilized gives better performance parameters for DC-DC converter such as voltage gain, low voltage stress and soft switching behaviour. Various control strategies to suit high voltage low current application is considered giving more importance to phase shift control scheme and implementing it with a suitable closed loop controller for complete control is done.
Kewords
Interleaved Converter, Voltage Doubler, Soft Switching, Distributed Voltage
Reference
#1.YuanchengRen, Ming Xu, Julu Sun and Fred C.Lee,“A Family of High Power Density Unregulated Bus Converters”, IEEE Transactions on Power Electronics , vol.20, no.5, pp. 1045 - 1054, 2005. #2.Michel E.Ropp and SigifredoGonzlez, “Development of a Matlab/Simulink Model of a Single Phase Grid Connected Photovoltaic System”, IEEE Transactions on Energy Conversion, vol.24, no.1, pp.1 - 8, 2009. #3.Amit Kumar Jain and RajapandianAyyanar, “PWM Control of Dual Active Bridge: Comprehensive Analysis and Experimental Verification ”, IEEE Transactions on Power Electronics , vol.26, no.4, pp. 1215 - 1227, 2011. #4.German G.Oggier, Guillermo O.Garcia and Alejandro R.Oliva, “Modulation Strategy to Operate the Dual Active Bridge DC-DC Converter Under Soft Switching in the Whole Operating Range ”,IEEE Transactions on Power Electronics, vol.26, no.4, pp. 1228 - 1236, 2011. #5.Kyu-Min Cho, Young-Do Kim, In-Ho Cho and Gun-Woo Moon, “Transformer Integrated With Additional Resonant Inductor for Phase Shift Full Bridge Converter With Primary Clamping Diodes ”, IEEE Transactions on Power Electronics , vol.27, no.5, pp. 2405 - 2414, 2012. #6.Wuhua Li, Sheng Zong, Fangrui Liu, Huan Yang, Xiangning He and Bin Wu, “Secondary Side Phase Shift Controlled ZVS DC/DC Converter With Wide Voltage Gain for High Input Voltage Applications ”,IEEE Transactions on Power Electronics, vol.28, no.11, pp. 5128 - 5139, 2013. #7.Hauke Van Hoek, Markus Neubertand RikW.DeDoncker, “Enhanced Modulation Strategy for a Three Phase Dual Active Bridge – Boosting Efficiency of an Electric Vehicle Converter”, IEEE Transactions on Power Electronics, vol.28, no.12, pp. 5499 - 5507, 2013. #8.Young-Ho Kim, Soo-Cheol Shin, Jung-Hyo Lee, Young-Chae Jung and Chung- Yuen Won, “Soft Switching Current Fed Push Pull Converter for 250-W AC Module Applications ”, IEEE Transactions on Power Electronics, vol.29, no.2, pp. 863 - 872, 2014. #9.Yu Tang, Xianmei Dong and Yaohua He, “Active Buck-Boost Inverter ”, IEEE Transactions on Industrial Electronics, vol.61, no.9, pp. 4691 - 4697, 2014. #10.Fuxin Liu, Yue Chen, Gaoping Hu and XinboRuan, “Modified Three Phase Three Level DC/DC Converter With Zero Voltage Switching Characteristics Adopting Asymmetrical Duty Cycle Control ”, IEEE Transactions on Power Electronics, vol.29, no.12, pp. 6307 - 6318, 2014. #11.Hongfei Wu, Yangjun Lu, Tiantian Mu and Yan Xing, “A Family of Soft-Switching DC–DC Converters Based on a Phase-Shift-Controlled Active Boost Rectifier”, IEEE Transactions on Power Electronics, vol.30, no.2, pp. 657 - 667, 2015.
