An Improved Interleaved Boost Converter with Enhanced Power Density and Efficiency Using Single Zero Voltage Transition Soft Switching Cell for Fuel Cell Electric Vehicles
IF 1.6 4区 工程技术Q3 ENGINEERING, ELECTRICAL & ELECTRONIC
Seung Hyun Kang, Yun Seong Hwang, Man Jae Kwon, Byoung Kuk Lee
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引用次数: 0
Abstract
This paper proposes an improved interleaved boost converter with a single zero voltage transition (ZVT) soft switching cell (IBSC) to achieve high power density and efficiency. By applying the single ZVT soft switching cell to the interleaved structure, the volume of the converter can be reduced compared to the multi ZVT soft switching cell that has a soft switching cell for each phase. Furthermore, the efficiency of the converter can also be increased because each phase can achieve soft switching regardless of the number of phases. This paper provides a detailed analysis of the operating principle based on the duty of the main switch (Sm) and the design method for resonant parameters using the equivalent circuit of Sm. To verify the feasibility, a 3 kW prototype IBSC is designed and implemented. Based on the experimental results, the volume of the soft switching converter decreased by 29.84%, while its efficiency increased by 0.4% compared to the conventional hard switching converter. Therefore, it is confirmed that the proposed IBSC has advantages in terms of power density and efficiency.
期刊介绍:
ournal of Electrical Engineering and Technology (JEET), which is the official publication of the Korean Institute of Electrical Engineers (KIEE) being published bimonthly, released the first issue in March 2006.The journal is open to submission from scholars and experts in the wide areas of electrical engineering technologies.
The scope of the journal includes all issues in the field of Electrical Engineering and Technology. Included are techniques for electrical power engineering, electrical machinery and energy conversion systems, electrophysics and applications, information and controls.