Robust Control of Modular Multiport DC-DC Converter

被引:0
作者
Farajdadian, Shahriar [1 ]
Hajizadeh, Amin [1 ]
Soltani, Mohsen [1 ]
Bauer, Pavol [2 ]
Vahedi, Hani [2 ]
机构
[1] Aalborg Univ, AAU Energy, DK-9220 Aalborg, Denmark
[2] Delft Univ Technol, Elect Sustainable Energy Dept, NL-2628CD Delft, Netherlands
来源
IEEE OPEN JOURNAL OF POWER ELECTRONICS | 2025年 / 6卷
关键词
DC/DC converter; multiport converter; modular converter; robust control; mu-synthesis; DESIGN;
D O I
10.1109/OJPEL.2025.3538992
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
This paper presents a robust control approach for non-isolated Modular Multiport Converters (MMPC) capable of integrating multiple energy sources and loads. The objective of this robust control approach is to mitigate cross-coupling challenges inherent in MIMO systems and effectively manage the parametric uncertainties associated with the converter as well as input and output disturbances. To achieve this objective, the paper begins with deriving the general nonlinear dynamic equations of an n-level step-up multi-port DC/DC converter (MPDCnLSU). Subsequently, for a case study involving a 3-level step-up multi-port DC/DC converter (MPDC3LSU) the equations are linearized to obtain the state-space model. Following the derivation of the converter model, a controller comprising two control loops is designed. The outer loop, responsible for regulating the voltage of output ports, is synthesized through a robust mu-optimal method using the D - G - K iterative procedure, while the inner loop, responsible for regulating the current sharing among the parallel modules and generating PWM signals, is stabilized via multiple PI controllers. Finally, hardware-in-the-loop (HIL) test results derived from OPAL-RT 4610, and experimental results from a prototype are used to validate this control approach. The proposed decoupled mixed mu synthesis method ensures robust performance and stability and results in a less conservative controller design for the MPDC3LSU.
引用
收藏
页码:300 / 313
页数:14
相关论文
共 27 条
[1]   A review of multiple input DC-DC converter topologies linked with hybrid electric vehicles and renewable energy systems [J].
Affam, Azuka ;
Buswig, Yonis M. ;
Othman, Al-Khalid Bin Hj ;
Julai, Norhuzaimin Bin ;
Qays, Ohirul .
RENEWABLE & SUSTAINABLE ENERGY REVIEWS, 2021, 135
[2]  
[Anonymous], 1996, Essentials of Robust Control
[3]   Multi-Port Non-Isolated DC-DC Converters and Their Control Techniques for the Applications of Renewable Energy [J].
Aravind, R. ;
Chokkalingam, Bharatiraja ;
Verma, Rajesh ;
Aruchamy, Sakthivel ;
Mihet-Popa, Lucian .
IEEE ACCESS, 2024, 12 :88458-88491
[4]   Decentralized control: An overview [J].
Bakule, Lubomir .
ANNUAL REVIEWS IN CONTROL, 2008, 32 (01) :87-98
[5]   Review of Multiport Converters for Solar and Energy Storage Integration [J].
Bhattacharjee, Amit Kumar ;
Kutkut, Nasser ;
Batarseh, Issa .
IEEE TRANSACTIONS ON POWER ELECTRONICS, 2019, 34 (02) :1431-1445
[6]   An Alternative Algorithm to the D-K Iterations for Robust Control Design [J].
Chen, Yilong ;
de Oliveira, Mauricio C. .
IEEE CONTROL SYSTEMS LETTERS, 2021, 5 (01) :115-120
[7]   Recent developments of multiport DC/DC converter topologies, control strategies, and applications: A comparative review and analysis [J].
Farajdadian, Shahriar ;
Hajizadeh, Amin ;
Soltani, Mohsen .
ENERGY REPORTS, 2024, 11 :1019-1052
[8]   A Bidirectional Multiple-Input Multiple-Output Modular Multilevel DC-DC Converter and its Control Design [J].
Filsoof, Kia ;
Lehn, Peter W. .
IEEE TRANSACTIONS ON POWER ELECTRONICS, 2016, 31 (04) :2767-2779
[9]   Centralized multivariable control by simplified decoupling [J].
Garrido, Juan ;
Vazquez, Francisco ;
Morilla, Fernando .
JOURNAL OF PROCESS CONTROL, 2012, 22 (06) :1044-1062
[10]  
Gu DW, 2013, ADV TXB CONTR SIG PR, P1, DOI 10.1007/978-1-4471-4682-7