Analysis and Design of High Effeiceny ZCS Buck (PWM) Converter in battery charger

Master's Thesis from the year 2014 in the subject Electrotechnology, grade: Master degree, Hohai University (College of Energy and Electrical Engineering), course: Power Electronics, language: English, abstract: This study employs a buck ZCS (PWM) converter and develops a novel soft-switching approach for charger batteries. This thesis presents technique for battery charger to achieve efficient performance in charging shaping, minimum low switching losses and reduction in circuit volume. The operation of circuit charger is switched with the operation of zero-current-switching, resonant components and appends the topology of dc-dc buck. The proposed novel dc-dc battery charger has advantages with the simplicity, low cost, high efficiency and the behavior of easy control under the ZCS condition accordingly reducing the switching losses. The detailed study of operating principle and circuit design consideration is performed. A short survey of battery charging system, capacity demand & its topological is also presented. In order to compute LC resonant pair values in conventional converter, the method of characteristic curve is used and electric function equations are derived from the prototype configuration. The efficient performance of charging shaping is confirmed through the practical examines and verification of the results is revealed by the MATLAB simulation. The efficiency is ensured about 89% which is substantially considered being satisfactory performance as achieved in this paper. The proposed novel ZCS buck topology thus provides a reliable solution for future battery charger applications.

Auteur

Dr. Irfan Jamil was born in Punjab province, City Multan, Pakistan on Feb 25,1987. He earned Ph.D degree from Hohai University, Nanjing, China in 2021. He received his master degree from Hohai University in 2013. He had been as a MEXT research scholar in Kyushu University, Japan in 2014. He also did his master research work as a Visiting Research Scholar at Tsinghua University, Beijing from 2012-2013 under the project No. is 2012AA050215 National High-Tech R&D Program (863 Program) of P.R China. He had been part of the National Natural Science Foundation of China under Grant no. 51677054 and Grant no. 51577049 and in part by the State Key Research Project (2017YFB0902600) during his PhD program. He has been published more than 25 research papers and 8 e-books in referring international journals, including SCI, IEEE conference during the period of master degree program from 2011-2013 and PhD program 2014-2021. He is also an editorial board of committee in International Journal of Innovation and Applied Studies (ISSR) and in World Academy of Science, Engineering and Technology (WASET). He is an editorial board member of Smart Science (TAETI Academic Publisher). He is also founder of Kambohwell Publisher Enterprises (www.kwpublisher.com) and Managing Editor in IJEW journal (www.ijew.io). His research interest Involves in solar system evaluation, solar energy production & power generation, Performance Ratio, Power Electronics and Power System Automation. These days, He is working as a Project Manager/ Commercial Manager in TBEA Xinjiang SunOasis Co., Ltd by the QASPL Govt. of Punjab Energy Department project of O&M (100MW Quaid-e-Azam Solar Power Plant Bahawalpur, Pakistan). He is an expert in the administration level field related to the industrial, commercial sector and in an academic firms.