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Capacitor monitoring for modular multilevel converters
IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society, 2017The modular multilevel converter (MMC) is attractive for medium-or high-power applications because of the advantages of its high modularity, availability, and high power quality. Reliability is one of the most important challenges for the MMC consisting of a large number of submodules (SMs).
Fujin Deng +5 more
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Impedance modeling of modular multilevel converters
IECON 2015 - 41st Annual Conference of the IEEE Industrial Electronics Society, 2015The impedance modeling of modular multilevel converters (MMCs) is a prerequisite for applying the impedance-based stability analysis method to an MMC-based high-voltage direct current (MMC-HVDC) transmission system. The objective of this paper is to develop impedance models of a three-phase MMC in order to assess its stability.
Jing Lyu, Xu Cai, Marta Molinas
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Dynamic Analysis of Modular Multilevel Converters
IEEE Transactions on Industrial Electronics, 2013Theory for the dynamics of modular multilevel converters is developed in this paper. It is shown that the sum capacitor voltage in each arm often can be considered instead of the individual capacitor voltages, thereby significantly reducing the complexity of the system model.
Lennart Harnefors +4 more
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Capacitor selection for modular multilevel converter
2014 IEEE Energy Conversion Congress and Exposition (ECCE), 2014Submodule (SM) capacitor is a key component in a modular multilevel converter (MMC), the selection of which must consider the component’s specifications and the requirements of the targeted converter application. This paper focuses on the capacitor selection for MMCs in applications including high-voltage direct current (HVDC) transmission and static ...
Yuan Tang +3 more
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The delta configured modular multilevel converter
2016 IEEE Power and Energy Society General Meeting (PESGM), 2016The modular multilevel converter (MMC) has become an attractive option for dc/ac conversion in many power system applications, in particular, for HVDC transmission. Due to its parallel arrangement of phase legs, the MMC is known to be a wye-configured architecture.
G. J. Kish, R. Shi, P. W. Lehn
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A Prototype of Modular Multilevel Converters
IEEE Transactions on Power Electronics, 2014This paper introduces a modular multilevel converter (MMC) based prototype for investigating the control of large-scale MMCs. The prototype contains 264 submodules (SMs) totally, which are designed in such a way that they can be rearranged between the half-bridge model and full-bridge model conveniently.
Yuebin Zhou +5 more
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Modeling, Control and Simulation of a Modular Multilevel Converter
2019 Fourth International Conference on Advances in Computational Tools for Engineering Applications (ACTEA), 2019The modular multilevel converter (MMC) is becoming the dominant scalable topology for medium to high-power conversion systems. It is currently used in High Voltage Direct Current (HVDC) applications. The operation and control of MMC is still challenging; thus, intense research has been done in this area.
Eliane Zouein +3 more
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Global Asymptotic Stability of Modular Multilevel Converters
IEEE Transactions on Industrial Electronics, 2014Modular multilevel converters require that the controller is designed so that the submodule capacitor voltages are equalized and stable, independent of the loading conditions. Assuming that the individual capacitor-voltage sharing is managed effectively, an open-loop strategy has been designed to ensure that the total amount of energy stored inside the
Antonios Antonopoulos +4 more
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Power Decoupling Control for Modular Multilevel Converter
IEEE Transactions on Power Electronics, 2018The existing power decoupling control method of modular multilevel converter (MMC) was developed from that of conventional two-level voltage source converters. Therefore, it cannot fully realize power decoupling due to neglecting the coupling effects from submodule capacitor voltage, dc current, circulating current as well as control strategies of ...
Jinyu Wang, Peng Wang
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A novel nine-arm modular multilevel converter
IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society, 2014In many applications, such as motor drives and integrating distribute power sources into a grid, there are two or more ac sources or loads. The conventional solution is to use separate modular multilevel converters, which increases cost and volume of system.
Jian Fu, Bo Zhang 0011, Dong Yuan Qiu
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