当前位置: X-MOL 学术IEEE Open J. Power Electron. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Unified Fast-Dynamic Direct-Current Control Scheme for Intermediary Inductive AC-Link Isolated DC-DC Converters
IEEE Open Journal of Power Electronics Pub Date : 2021-06-01 , DOI: 10.1109/ojpel.2021.3085863
Nie Hou , Yuzhou Li , Zhongyi Quan , Yun Wei Li , Andrew Zhou

The isolated dc-dc converters with middle inductive AC links dc-dc converter have been extensively studied in modern energy conversion applications for safety and reliability, especially those featuring intermediary inductive ac-link (I 2 ACL) configurations such as full-bridge dc-dc converter and dual-active-bridge (DAB). However, up to now, the dynamic equivalence in these I 2 ACL type converters has not been systematically revealed. To fill such a gap, in this paper, the existing I 2 ACL isolated dc-dc converters are reviewed thoroughly, including unidirectional type and bidirectional type. Then, the general current transferred features of these two groups are analyzed, respectively, and the transferred current during the transient process is just influenced by the middle inductance little. So, the I 2 ACL isolated dc-dc converter can be regarded as the first-order converter. Based on the discovered general characteristic, a unified fast-dynamic direct-current (FDDC) control scheme is proposed for improving the dynamic performance of these I 2 ACL isolated dc-dc converters. Such a scheme can also facilitate the uniform control design for existing or emerging new topologies with the same electrical equivalence. Moreover, the specialized design principles of the PI parameters in the unified FDDC control method are also presented. Finally, to verify the universality and feasibility of the proposed general FDDC control strategy, both simulation and experiment results are presented with demonstration examples, e.g., full-bridge type, DAB-type, and the three-phase DAB type dc-dc converters.

中文翻译:

中间电感式交流链路隔离式 DC-DC 转换器的统一快速动态直流控制方案

具有中间感应交流链路的隔离式 DC-DC 转换器 dc-dc 转换器已在现代能源转换应用中广泛研究,以确保安全性和可靠性,尤其是那些具有中间感应交流链路 (I 2 ACL) 配置的应用,例如全桥直流-直流转换器和双有源桥 (DAB)。然而,到目前为止,这些I 2 ACL 类型转换器的动态等效性 还没有被系统地揭示出来。为了填补这样的空白,在本文中,现有的 I 2 ACL 隔离式 dc-dc 转换器进行了彻底审查,包括单向型和双向型。然后,分别分析了这两组的一般电流传递特性,瞬态过程中的传递电流仅受中间电感的影响很小。因此,I 2 ACL 隔离式dc-dc 转换器可视为一阶转换器。基于发现的一般特性,提出了一种统一的快速动态直流(FDDC)控制方案,以提高这些 I 2的动态性能 ACL 隔离式 DC-DC 转换器。这种方案还可以促进具有相同电气等效性的现有或新兴新拓扑的统一控制设计。此外,还介绍了统一FDDC控制方法中PI参数的专门设计原则。最后,为了验证所提出的通用 FDDC 控制策略的通用性和可行性,仿真和实验结果均通过演示示例进行展示,例如全桥型、DAB 型和三相 DAB 型 DC-DC 转换器。
更新日期:2021-06-29
down
wechat
bug