Improved dynamic performance of triple active bridge DC-DC converter using differential flatness control for more electric aircraft applications

被引:1
作者
Adam, Ahmed Hamed Ahmed [1 ,2 ]
Chen, Jiawei [1 ,2 ]
Xu, Minghan [1 ,2 ]
Kamel, Salah [3 ]
Ahmed, Emad M. [4 ]
Zaki, Zaki A. [4 ]
机构
[1] Chongqing Univ, Sch Automat, Chongqing 400044, Peoples R China
[2] Chongqing Univ, Lab Power Transmission Equipment & Syst Secur & Ne, Chongqing 400044, Peoples R China
[3] Aswan Univ, Fac Engn, Dept Elect Engn, Aswan 81542, Egypt
[4] Jouf Univ, Coll Engn, Dept Elect Engn, Sakaka 72388, Saudi Arabia
关键词
Triple active bridge; Proportional-integral; Differential flatness control; Unit matrix decoupling control; Hardware-in-loop; BIDIRECTIONAL CONVERTER; DC/DC CONVERTER;
D O I
10.1016/j.rineng.2024.102811
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The triple active bridge (TAB) converter has been proposed to improve power density and availability in more electric aircraft applications. However, the conventional proportional-integral (PI) controller used for TAB voltage control often exhibits slow response and significant overshoot, which can impact dynamic performance. Moreover, achieving decoupling control among ports introduces computational complexity in controller design. To address these issues, this paper introduces an effective diagonal matrix decoupling strategy based on differential flatness control with single-phase shift modulation applied to a TAB converter. The proposed differential flatness control offers superior transient performance, control flexibility, and precision, ensuring compliance with DC voltage regulations while achieving optimal decoupling among ports. The comparative analysis assesses various criteria, including steady-state and dynamic performance, control complexity, and regulation and tracking properties, against PI control, unit matrix decoupling control, and the proposed differential flatness control. Hardware-in-loop (HIL) experimentation verifies the performance, confirming faster dynamic characteristics and robust port power decoupling. The results show a significant improvement in efficiency, reaching a maximum of 95.5 %, indicating reduced switching losses and enhanced overall system performance. The study concludes with a discussion on the implications of these findings and potential future research directions, such as integrating advanced optimization algorithms further to enhance the control strategy's robustness and adaptability.
引用
收藏
页数:22
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