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Automation & Control Systems
Christopher D. Townsend, Graham Clifford Goodwin, Georgios Konstantinou, Nikola Petranovic, Galina Mirzaeva, Ghias Farivar, Josep Pou
Summary: The optimization approach developed in this article identifies harmonics that simultaneously achieve capacitor energy optimization and reduced overrating of converter currents, eliminating the possibility of convergence to local minima. Experimental verification of this approach is performed on a low-voltage three-phase modular multilevel converter.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2021)
Article
Engineering, Electrical & Electronic
Chao Wang, Zedong Zheng, Kui Wang, Yongdong Li
Summary: In this letter, an optimum common-mode voltage injection (CMV) method is proposed to maximize the input and output voltage ranges of the M3C after nonredundant SMs are failed. The injected optimum CMV is calculated in real-time and can adapt to different load and fault conditions. Experimental results validate the effectiveness of the proposed method.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2022)
Article
Engineering, Electrical & Electronic
Chengkai Liu, Fujin Deng, Xu Cai, Zheng Wang, Zhe Chen, Frede Blaabjerg
Summary: This article investigates the fault detection of the modular multilevel converter (MMC) under light load conditions and proposes a fault detection method based on a rearranged bleeding resistor circuit (RBRC). Experimental results confirm the effectiveness of the proposed method.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2022)
Article
Energy & Fuels
Ahmed Elsanabary, Tuanku Badzlin Hashfi, Saad Mekhilef, Mehdi Seyedmahmoudian, Alex Stojcevski
Summary: This study focused on an adaptive carrier phase disposition pulse width modulation (AC-PDPWM) technique for fault tolerant control in modular multilevel converters (MMC). The proposed control method can tolerate converter submodule (SM) faults without the need for redundant SMs or additional computational burden, which helps reduce the cost and volume of MMC design and simplifies control.
Article
Automation & Control Systems
Aleksandr Viatkin, Mattia Ricco, Riccardo Mandrioli, Tamas Kerekes, Remus Teodorescu, Gabriele Grandi
Summary: A new Modular Multilevel Converter with Interleaved half-bridge Sub-Modules (ISM-MMC) is proposed in this article, which exhibits higher modularity and scalability for ultrafast chargers. A hybrid modulation scheme is implemented to exploit the advantages of the interleaving scheme. Comparative study verifies the effectiveness of the proposed topology.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Chao Wang, Zedong Zheng, Kui Wang, Bo Yang, Peiyi Zhou, Yongdong Gae Li
Summary: This article proposes a novel branch current configuration method for enhancing the reliability of the M3C. The method can handle branch fault conditions and derive feasible branch current configurations while being adaptable to different load conditions.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2022)
Article
Engineering, Electrical & Electronic
Claudio Burgos-Mellado, Felipe Donoso, Tomislav Dragicevic, Roberto Cardenas-Dobson, Patrick Wheeler, Jon Clare, Alan Watson
Summary: This article investigates the impacts of cyberattacks on distributed control schemes used in MMCs and proposes methods for detecting and countering them to ensure system security.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2022)
Article
Engineering, Electrical & Electronic
Jiapeng Yin, Jose Leon, Marcelo A. Perez, Leopoldo G. Franquelo, Abraham Marquez, Sergio Vazquez
Summary: The article proposes a low-cost MPC technique for MMCs to address the issue of high calculation involved in FCS-MPC. The arm voltage references for each phase are determined analytically, simplifying the optimization problem-solving process. Experimental tests show that this method has a clear advantage in terms of calculation cost while achieving similar performance.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2021)
Article
Engineering, Electrical & Electronic
Saleh Farzamkia, Hossein Iman-Eini, Arash Khoshkbar-Sadigh, Masoud Noushak
Summary: The article proposes a software-based method to enhance the fault-tolerant capability of modular multilevel converters (MMCs) by controlling the DC bus voltage. The method maintains larger line-to-line voltage in various fault states and balances the line-to-neutral voltages of the MMC in the postfault condition. Additionally, it addresses common-mode voltage, power-factor limitations, and electromagnetic interference issues seen in previous works.
IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS
(2021)
Article
Engineering, Electrical & Electronic
Chao Wang, Zedong Zheng, Kui Wang, Yongdong Li
Summary: This article analyzes the behavior of the modular multilevel matrix converter (M3C) under open-circuit faults and proposes a suitable fault detection criterion for the M3C. It also proposes a modified fault-tolerant control process and a method to obtain the actual maximum intrinsic errors (AMIEs) of the observers. Experimental results validate the effectiveness of the proposed methods.
IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS
(2022)
Article
Engineering, Electrical & Electronic
Chengkai Liu, Fujin Deng, Qingsong Wang, Yanbo Wang, Frede Blaabjerg, Zheng Wang
Summary: A double half-bridge submodule-based MMC design is proposed in this letter, requiring only half the number of sensors to estimate capacitor voltages compared to traditional half-bridge submodule-based MMC designs, which proves to be more cost-effective. Simulation and experimental results confirm the effectiveness of the proposed method.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2021)
Article
Engineering, Electrical & Electronic
Chengkai Liu, Fujin Deng, Jianzhong Zhang, Xu Cai, Zhe Chen, Frede Blaabjerg
Summary: A controllable submodule (SM) based on a normally-on silicon carbide (SiC) junction field-effect transistor is proposed to reduce the power loss on bleeding resistor and improve the efficiency of modular multilevel converters (MMCs).
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2022)
Article
Engineering, Electrical & Electronic
Zhi Geng, Minxiao Han, Weiqi Bao, Wenqiang Xie
Summary: This article proposes a new submodule (SM) capable of fault tolerance, integrating an operating half-bridge SM (HBSM) and a backup HBSM. The SM ensures charging the capacitor in the backup HBSM and tolerates different faults. The proposed SM simplifies the fault-tolerant method (FTM) and overcomes drawbacks of existing FTMs.
IEEE TRANSACTIONS ON POWER DELIVERY
(2023)
Article
Energy & Fuels
Pablo Poblete, Sebastian Neira, Ricardo P. Aguilera, Javier Pereda, Josep Pou
Summary: The proposed sequential phase-shifted model predictive control (PS-MPC) effectively tackles the issues of high computational complexity and variable switching frequency in controlling MMCs. By utilizing phase-shifted pulsewidth modulation technique, this control strategy achieves independent optimal modulating signals for each carrier, allowing for multiple objective control.
IEEE TRANSACTIONS ON ENERGY CONVERSION
(2021)
Article
Automation & Control Systems
Xiaonan Gao, Yuebin Pang, Jinhui Xia, Na Chai, Wei Tian, Jose Rodriguez, Ralph Kennel
Summary: In this article, an exhaustive active-set method is proposed to implement the modulated MPC scheme enabling the MMC to operate over a wide frequency range. With this method, the optimal solution can be obtained by enumerating all possible active sets, avoiding the iterative process and determining the worst-case computational burden (or calculation time). Finally, a comparative study is conducted to demonstrate the effectiveness of the proposed method against conventional modulated MPC methods and FCS-MPC.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2023)
Article
Automation & Control Systems
Mohsen Hamzeh, Amin Ghazanfari, Yasser Abdel-Rady I. Mohamed, Yaser Karimi
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2015)
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Amin Ghazanfari, Yasser Abdel-Rady I. Mohamed
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2016)
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Engineering, Electrical & Electronic
Amin Ghazanfari, Yasser Abdel-Rady I. Mohamed
IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS
(2016)
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Amin Ghazanfari, Yasser Abdel-Rady I. Mohamed
IEEE TRANSACTIONS ON SMART GRID
(2018)
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A. Khorsandi, S. H. Hosseinian, A. Ghazanfari
ELECTRIC POWER SYSTEMS RESEARCH
(2013)
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Energy & Fuels
Mohsen Hamzeh, Amin Ghazanfari, Hossein Mokhtari, Houshang Karimi
IEEE TRANSACTIONS ON ENERGY CONVERSION
(2013)
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Engineering, Electrical & Electronic
Amin Ghazanfari, Hossein Mokhtari, Mohsen Firouzi
IEEE TRANSACTIONS ON POWER DELIVERY
(2012)
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Engineering, Electrical & Electronic
Amin Ghazanfari, Mohsen Hamzeh, Hossein Mokhtari, Houshang Karimi
IEEE TRANSACTIONS ON SMART GRID
(2012)
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Engineering, Electrical & Electronic
Amin Ghazanfari, Christian Perreault
IEEE INDUSTRIAL ELECTRONICS MAGAZINE
(2022)
Proceedings Paper
Engineering, Electrical & Electronic
Mohsen Hamzeh, Amin Ghazanfari, Mojtaba Ashourloo, Houshang Karimi
2014 IEEE 23RD INTERNATIONAL SYMPOSIUM ON INDUSTRIAL ELECTRONICS (ISIE)
(2014)
Proceedings Paper
Engineering, Electrical & Electronic
A. Ghazanfari, M. Hamzeh, H. Mokhtari
4TH ANNUAL INTERNATIONAL POWER ELECTRONICS, DRIVE SYSTEMS & TECHNOLOGIES CONFERENCE (PEDSTC 2013)
(2013)