PDF
Full
Outline
The flexible DC interconnection of medium and low voltage can improve the flexibility and reliability of the distribution network，and the dual active bridge converter is a key link in achieving voltage conversion and electrical isolation in flexible interconnection equipment.The current source resonant dual active bridge utilizes DC capacitors to participate in resonance and soft switching design，which can significantly improve the power density and efficiency of the dual active bridge. However，there are significant differences in the characteristics between the current source resonant dual active bridge and the traditional voltage source resonant dual active bridge. The resonant cavity is composed of a DC resonant capacitor and an AC side resonant inductor，which leads to complex time-domain modeling of high-frequency current and affects the frequency design of zero current switching （ZCS），making it difficult to obtain analytical expressions for the ZCS switching frequency and resonant frequency. An equivalent circuit modeling method for high-frequency isolation links based on fundamental components from a frequency domain perspective was proposed，established an analytical relationship between ZCS switch frequency and resonant frequency，and verified the effectiveness and accuracy of the proposed method through simulation and experimental results.
PDF
221
101
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
关闭全屏
No. 86 Xueyuan South Road, Haidian District, Beijing
010-62199257
qkjq@cast.org.cn
Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House
