Results 191 to 200 of about 821 (247)

Dynamic Analysis of Modular Multilevel Converters

IEEE Transactions on Industrial Electronics, 2013
Theory 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   +2 more
exaly   +2 more sources

Multisampling in interleaved converters and modular multilevel converters

IECON 2016 - 42nd Annual Conference of the IEEE Industrial Electronics Society, 2016
This paper presents a method for sampling the analog variables and running the controller in multi-cell converters with a frequency higher than the switching frequency. First we introduce the multi-cell converters and highlight their similarities. Next we describe the devised method and explain the strategy to avoid simultaneous sampling and switching ...
Tomás Perpetuo Corrêa   +2 more
openaire   +1 more source

Capacitor monitoring for modular multilevel converters

IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society, 2017
The 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
openaire   +1 more source

Impedance modeling of modular multilevel converters

IECON 2015 - 41st Annual Conference of the IEEE Industrial Electronics Society, 2015
The 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
openaire   +1 more source

The delta configured modular multilevel converter

2016 IEEE Power and Energy Society General Meeting (PESGM), 2016
The 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
openaire   +1 more source

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