A Low-Computation Indirect Model Predictive Control for Modular Multilevel Converters

被引:6
作者
Ma, Wenzhong [1 ]
Sun, Peng [1 ]
Zhou, Guanyu [1 ]
Sailijiang, Gulipali [1 ]
Zhang, Ziang [1 ]
Liu, Yong [2 ]
机构
[1] China Univ Petr East China, Inst New Energy, Coll Informat & Control Engn, Qingdao, Peoples R China
[2] State Grid Dongying Power Supply Co, Dongying, Peoples R China
基金
中国国家自然科学基金;
关键词
Capacitor voltage balancing; Circulating current control; Current tracking; Model predictive control; Modular multilevel converter; CIRCULATING CURRENT SUPPRESSION; MTDC GRIDS;
D O I
10.6113/JPE.2019.19.2.529
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
The modular multilevel converter (MMC) has become a promising topology for high-voltage direct current (HVDC) transmission systems. To control a MMC system properly, the ac-side current, circulating current and submodule (SM) capacitor voltage are taken into consideration. This paper proposes a low-computation indirect model predictive control (IMPC) strategy that takes advantages of the conventional MPC and has no weighting factors. The cost function and duty cycle are introduced to minimize the tracking error of the ac-side current and to eliminate the circulating current. An optimized merge sort (OMS) algorithm is applied to keep the SM capacitor voltages balanced. The proposed IMPC strategy effectively reduces the controller complexity and computational burden. In this paper, a discrete-time mathematical model of a MMC system is developed and the duty ratio of switching state is designed. In addition, a simulation of an eleven-level MMC system based on MATLAB/Simulink and a five-level experimental setup are built to evaluate the feasibility and performance of the proposed low-computation IMPC strategy.
引用
收藏
页码:529 / 539
页数:11
相关论文
共 28 条
[1]   A Fault Tolerant Control Technique for Hybrid Modular Multi-Level Converters with Fault Detection Capability [J].
Abdelsalam, Mahmoud ;
Marei, Mostafa Ibrahim ;
Diab, Hatem Yassin ;
Tennakoon, Sarath B. .
JOURNAL OF POWER ELECTRONICS, 2018, 18 (02) :558-572
[2]   Guidelines for Weighting Factors Design in Model Predictive Control of Power Converters and Drives [J].
Cortes, Patricio ;
Kouro, Samir ;
La Rocca, Bruno ;
Vargas, Rene ;
Rodriguez, Jose ;
Leon, Jose I. ;
Vazquez, Sergio ;
Franquelo, Leopoldo G. .
2009 IEEE INTERNATIONAL CONFERENCE ON INDUSTRIAL TECHNOLOGY, VOLS 1-3, 2009, :1477-1483
[3]   Comparison of DSCC and SDBC Modular Multilevel Converters for STATCOM Application During Negative Sequence Compensation [J].
Cupertino, Allan Fagner ;
Matos Farias, Joao Victor ;
Pereira, Heverton Augusto ;
Seleme Jr, Seleme Isaac ;
Teodorescu, Remus .
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, 2019, 66 (03) :2302-2312
[4]   Hierarchical System Design and Control of an MMC-Based Power-Electronic Transformer [J].
Fan, Boran ;
Li, Yongdong ;
Wang, Kui ;
Zheng, Zedong ;
Xu, Lie .
IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS, 2017, 13 (01) :238-247
[5]   A New H-Bridge Hybrid Modular Converter (HBHMC) for HVDC Application: Operating Modes, Control, and Voltage Balancing [J].
Ghat, Mahendra B. ;
Shukla, Anshuman .
IEEE TRANSACTIONS ON POWER ELECTRONICS, 2018, 33 (08) :6537-6554
[6]   Modulated Model Predictive Control for MMC-Based Active Front-End Rectifiers Under Unbalanced Grid Conditions [J].
Gong, Zheng ;
Wu, Xiaojie ;
Dai, Peng ;
Zhu, Rongwu .
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, 2019, 66 (03) :2398-2409
[7]   Predictive Sorting Algorithm for Modular Multilevel Converters Minimizing the Spread in the Submodule Capacitor Voltages [J].
Ilves, Kalle ;
Harnefors, Lennart ;
Norrga, Staffan ;
Nee, Hans-Peter .
IEEE TRANSACTIONS ON POWER ELECTRONICS, 2015, 30 (01) :440-449
[8]  
Knuth D. E., 2014, ART COMPUTER PROGRAM
[9]   Comparative Study of the Active and Passive Circulating Current Suppression Methods for Modular Multilevel Converters [J].
Li, Binbin ;
Xu, Zigao ;
Shi, Shaolei ;
Xu, Dianguo ;
Wang, Andwei .
IEEE TRANSACTIONS ON POWER ELECTRONICS, 2018, 33 (03) :1878-1883
[10]   Impact of Circulating Current Control in Capacitor Voltage Ripples of Modular Multilevel Converters Under Grid Imbalances [J].
Li, Jinke ;
Konstantinou, Georgios ;
Wickramasinghe, Harith R. ;
Pou, Josep ;
Wu, Xuezhi ;
Jin, Xinmin .
IEEE TRANSACTIONS ON POWER DELIVERY, 2018, 33 (03) :1257-1267