Explicit discrete modelling of bidirectional dual active bridge dc-dc converter using multi-time scale mixed system model

被引：9

作者：

Iqbal, Mohammad Tauquir ^{[1
]}

Maswood, Ali I. ^{[1
]}

Dehghani Tafti, Hossein ^{[2
]}

Tariq, Mohd ^{[3
]}

Zhong, Bingchen ^{[1
]}

机构：

[1] Nanyang Technol Univ, Sch Elect & Elect Engn, 50 Nanyang Ave, Singapore 639798, Singapore

[2] Univ New South Wales, Sch Elect Engn & Telecommun, Sydney, NSW 2052, Australia

[3] Aligarh Muslim Univ, ZHCET, Dept Elect Engn, Aligarh 202002, Uttar Pradesh, India

来源：

IET POWER ELECTRONICS | 2020年 / 13卷 / 18期

关键词：

DC-DC power convertors; closed loop systems; control system synthesis; power inductors; bridge circuits; discrete-time models; state trajectories; converter operation; ac state variables; DAB; explicit discrete modelling; bidirectional dual active bridge dc-dc converter; multitime scale mixed system model; high power density; solid-state transformer; dc distribution systems; high power isolated bidirectional dc-dc converter; microgrid; controller design; open-closed-loop operation; DIGITAL-CONTROL;

D O I：

10.1049/iet-pel.2020.0293

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Dual active bridge (DAB) is one of the most popular high power isolated bidirectional dc-dc converter. It offers high power density, a low number of passive components, high efficiency. It is essential to model the converter so that it can be used in applications such as solid-state transformer, micro-grids, and dc distribution systems. Moreover, modelling a system is used to design inductor, select the switches, and controller design. The advantage of the discrete-time models is that they explicitly describe state trajectories in all sub-intervals of converter operation, meaning they are capable of providing exact solutions for ac state variables. This study proposes time scaling mixed system model of the DAB. The proposed method provides explicit solutions of the large and small signal, which can be used to study the steady-state and transient nature of the converter. The experimental results validate the proposed model with high accuracy in the open and closed-loop operation.

引用

页码：4252 / 4260

页数：9

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