Direct Power Based Control Strategy for DAB DC-DC Converter With Cooperative Triple Phase Shifted Modulation

被引：5
|
作者：
Dai, Yong [1 ]
Luo, Suhua [2 ]
Li, Zhongwei [3 ]
机构：
[1] Harbin Inst Technol, Sch Mechatron Engn, Harbin 150001, Peoples R China
[2] Harbin Inst Technol, Sch Phys, Harbin 150001, Peoples R China
[3] Harbin Inst Technol, Sch Elect Engn & Automat, Harbin 150001, Peoples R China
来源：
IEEE ACCESS | 2021年 / 9卷
关键词：
Mathematical models; DC-DC power converters; Inductors; Stress; Load modeling; Microgrids; Control systems; Closed-loop control; direct power control; dual active bridge DC-DC converter; triple phase shift;
D O I：
10.1109/ACCESS.2021.3122954
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
The cooperative triple-phase-shifted modulation (CTPS) for the isolated dual-active bridge (DAB) DC-DC converter has the advantages of zero dual-DC side flow back currents and best current characteristics. However, the mathematical model and corresponding closed-loop control configuration of the DAB converter driven by CTPS are not presented so far. In order to solve this problem, in this paper, the average state space model of the DAB converter driven by CTPS is established for the first time. It is proven that the DAB converter driven by CTPS is a zero-order system and it is not necessary to construct an inner inductor current closed-loop control loop in the entire closed-loop control configuration of DAB converter. Furthermore, the average power model is derived. Two control strategies based on the resulted average power model when the DAB converter is connected to DC microgrid or a pure resistive load are proposed to realize the precise control of the transfer power or the output voltage, respectively. The detailed experimental results verify the correctness of the established mathematical model and the closed-loop control strategies.
引用
收藏
页码：147791 / 147800
页数：10
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