Article
Engineering, Electrical & Electronic
Lingbo Zhou, Canfeng Chen, Jian Xiong, Kai Zhang
Summary: This article proposes a modified individual capacitor voltage balancing method for MMCs with phase-shifted carrier pulsewidth modulation (CPS-PWM) to solve the problem of poor dynamic performance at low output power. The proposed method incorporates the information of arm current into the balancing algorithm to cancel out the coupling effect of output power on balancing control, showing better robustness and dynamic performance.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2022)
Article
Engineering, Multidisciplinary
Tarek Younis, Paolo Mattavelli, Igino Toigo, Michele Corradin
Summary: This paper proposes a capacitor voltage control scheme for a three-phase modular multilevel converter (MMC) with optimized capacitor sizing. Unlike the existing circulating current control, the proposed controller uses the middle capacitor voltage to control the second-order harmonic component of the circulating current. The proposed controller can effectively control the circulating current to be constant or inject second-order harmonics to reduce the capacitor sizing. Detailed analysis, controller design, and performance of the proposed scheme are presented in this paper. The effectiveness of this study is confirmed by simulation and experimental results.
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS
(2023)
Article
Engineering, Electrical & Electronic
Zhi Geng, Minxiao Han, Wenli Yan
Summary: This article presents two currentless voltage balancing algorithms, an improved method and a new method. The performance of the improved method is enhanced by adding phase delay compensation. The proposed method reflects the polarity of an arm current based on the minimum capacitor voltage. Both the improved and proposed methods exhibit similar performances to the conventional sampling arm current based voltage balancing algorithm.
IEEE TRANSACTIONS ON POWER DELIVERY
(2023)
Article
Engineering, Electrical & Electronic
Fernando Martinez-Rodrigo, Santiago de Pablo, Dionisio Ramirez, Luis C. Herrero-De Lucas, Zaid A. Aljawary
Summary: This paper presents a new topology of a wind farm where wind generators are integrated into the structure of a modular multilevel converter (MMC). It addresses the issue of power imbalances caused by different power outputs of each wind generator. The design of a new regulator is proposed to correct these imbalances and maintain balanced power in the MMC phases and arms, which has been successfully tested through numerical and real-time simulations.
ELECTRIC POWER SYSTEMS RESEARCH
(2023)
Article
Engineering, Electrical & Electronic
Weiyao Wang, Ke Ma, Xu Cai
Summary: This article investigates the voltage balancing for floating capacitors in the modular multilevel converter (MMC) under carrier-phase-shift pulsewidth modulation (CPS-PWM), proposing a novel balancing method with high efficiency and easy design/realization, after theoretically revealing and solving the disturbance and unbalance mechanisms of capacitor voltages.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2021)
Article
Automation & Control Systems
Tianxiang Yin, Lei Lin, Chen Xu, Donghai Zhu, Kaiyuan Jing
Summary: This article proposes a hybrid modular multilevel converter (MMC) topology based on SiC mosfet and Si IGBT. By improving the modulation scheme and introducing a specialized voltage balancing scheme, the performance of the system is enhanced. Simulation and experimental results demonstrate the feasibility of the hybrid MMC and its superiority in terms of cost, loss, and feasibility compared to others.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2022)
Article
Automation & Control Systems
Yue Zhang, Fujin Deng, Jiehua Hou, Pengyuan Jiang, Hanlu Zhang, Kangshun Zhu, Yihua Hu, Sergio Vazquez
Summary: This article proposes a cascaded MMC and CCV based drive system to overcome the challenge of large capacitor voltage fluctuation in low-speed drive. The MMC provides medium-frequency AC voltage to the CCV, which converts it into low-frequency AC output required by the machine. Detailed analysis of MMC's operation frequency, device current stress, and SM capacitance are presented. The proposed drive system can operate at zero/low frequency under rated load torque, with smaller SM capacitance compared to existing methods. Simulation and experimental studies confirm the effectiveness of the proposed system.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2023)
Article
Engineering, Multidisciplinary
Mai Diab, Ahmed A. Elserougi, A. S. Abdel-Khalik
Summary: This paper presents a hybrid modular multilevel DC-DC converter topology that successfully solves the issue of capacitors voltage imbalance during DC-DC conversion. The proposed converter can achieve arm energy equalization and operate as a DC transformer.
ALEXANDRIA ENGINEERING JOURNAL
(2023)
Article
Automation & Control Systems
Nima Tashakor, Muhammet Kilictas, Jingyang Fang, Stefan M. Goetz
Summary: This article proposes an MMC topology with an active clamping path that achieves sensorless voltage balancing, reducing communication and computation demands, and achieving lower power loss and fewer components in system operation.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2021)
Article
Engineering, Electrical & Electronic
Huailong Li, Fujin Deng, Jie Tian, Yu Lu, Gang Li, Frede Blaabjerg
Summary: This article proposes a current integral comparison (CIC)-based power loss balancing control (PLBC) for improving the reliability of modular multilevel converters (MMCs). The proposed control not only improves the power loss distribution in each submodule, but also reduces the temperature fluctuation of semiconductors, significantly improving the lifetime of MMCs.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Hari Babu Gobburi, Vijay B. Borghate, Prafullachandra M. Meshram
Summary: This paper presents a capacitor voltage balancing method for MMC to solve the inherent problem of uneven power distribution. The method eliminates the need for voltage and current sensors and ensures uniform power distribution among the submodules.
INTERNATIONAL JOURNAL OF CIRCUIT THEORY AND APPLICATIONS
(2022)
Article
Computer Science, Information Systems
Yaoxi Jiang, Wentao Wang, Hongchun Shu, Junjie Zhang
Summary: This paper proposes a method based on the circulating current model predictive proportional integral controller to effectively suppress the circulating currents in the modular multilevel converter. The simulation results on MATLAB/Simulink show that the proposed control strategy can not only distinctly suppress the circulating currents, but also reduce the overall voltage fluctuation of sub-modules capacitors, with almost no adverse effect on the performance of the converter.
Article
Engineering, Electrical & Electronic
Stefan Milovanovic, Drazen Dujic
Summary: This article discusses three seemingly different energy balancing strategies for the modular multilevel converter, providing a framework for theoretical comparison of their different dynamic responses.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2021)
Article
Engineering, Electrical & Electronic
Wei Luo, Yifan Ma, Changbao Zheng
Summary: An improved balancing method based on a novel selection algorithm for MMCs is proposed in this paper to address the problems of large calculation burden and high switching frequency in the traditional capacitor voltage balancing method. This method can avoid sorting operation of the arm SM voltages in each control cycle, greatly improving sorting efficiency while maintaining control precision of the capacitor voltages.
JOURNAL OF POWER ELECTRONICS
(2021)
Article
Engineering, Electrical & Electronic
Nima Tashakor, Farzad Iraji, Stefan M. Goetz
Summary: This article proposes a simple yet powerful module scheduling method for modular multilevel series/parallel converters. The method reduces control complexity, improves efficiency, and achieves a compromise between balancing module voltages and switching loss. Compared to other algorithms, this technique achieves significant reduction in power loss and improvement in averaged capacitor currents.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2022)
Article
Automation & Control Systems
Suman Debnath, Jiangchao Qin, Maryam Saeedifard
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2015)
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Engineering, Electrical & Electronic
Suman Debnath, Jiangchao Qin, Behrooz Bahrani, Maryam Saeedifard, Peter Barbosa
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2015)
Article
Automation & Control Systems
Suman Debnath, Maryam Saeedifard
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2016)
Article
Engineering, Electrical & Electronic
Behrooz Bahrani, Suman Debnath, Maryam Saeedifard
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2016)
Proceedings Paper
Energy & Fuels
Suman Debnath, Maryam Saeedifard
2014 TWENTY-NINTH ANNUAL IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION (APEC)
(2014)
Proceedings Paper
Automation & Control Systems
Suman Debnath, Jiangchao Qin, Maryam Saeedifard
IECON 2014 - 40TH ANNUAL CONFERENCE OF THE IEEE INDUSTRIAL ELECTRONICS SOCIETY
(2014)
Proceedings Paper
Education & Educational Research
Nicholas David, Suman Debnath, Munadir Aziz Ahmed, Dionysios C. Aliprantis, Maryam Saeedifard
2013 ASEE ANNUAL CONFERENCE
(2013)