Journal
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
Volume 69, Issue 10, Pages 10112-10128Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TIE.2021.3135611
Keywords
Active switched-inductor (ASL); high step-up dc-dc converters; self voltage balancing; switched-capacitor (SC)
Categories
Funding
- Hebei Province Science Fund for Distinguished Young Scholars [E2020202140]
- National Natural Science Foundation of China [51677084, 52130710]
- Support Program (III) for 100 Outstanding Innovative Talents in Universities of Hebei Province [SLRC2019025]
- Hebei Provincial Central Government Guided Local Science and Technology Development Fund Project [216Z4401G]
Ask authors/readers for more resources
A novel high step-up SC/ASL converter is proposed in this article, with lower voltage stress and higher efficiency compared to other similar converters. The converter can achieve self-voltage balancing and its performance is verified through a series of analyses.
High step-up dc-dc converters are widely used in new energy applications such as photovoltaic cell, fuel cell, dc microgrid, etc. Active switched-inductor (ASL) converter has simple operation and low stress on switches. To further increase the voltage gain, some SC (switched-capacitor)/ASL step-up converters have been proposed recently. However, these SC, ASL step-up converters have voltage oscillation on switches, which leads to the voltage stress on switches is higher than the theoretical value. In this article, a novel high step-up SC/ASL converter is proposed. Compared with other SC/ASL step-up converters, the proposed converter has lower voltage stress on the switches, output diodes, and output filter capacitors, and the efficiency is higher. In addition, the proposed converter can achieve self-voltage balancing on switches. This article analyzes the proposed converter from operation principle, continuous conduction mode (CCM) analysis, CCM operation with unbalanced inductors, input current ripple analysis, discontinuous conduction mode and boundary conduction mode analysis, switches self-voltage balancing characteristic, voltage stress, current stress, comparison analysis, and design considerations. Finally, a 200 W, 25-45 V1380 V, 50 kHz experimental prototype has been established in the laboratory to evaluate the proposed converter, which reached a peak efficiency of 97.3%.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available