Results 241 to 250 of about 30,828 (307)

Failure Prediction of Submodule Capacitors in Modular Multilevel Converter by Monitoring the Intrinsic Capacitor Voltage Fluctuations

IEEE transactions on industrial electronics (1982. Print), 2020
Modular multilevel converters (MMCs) are emerging as a promising topology for medium- and high-power applications. Aluminum electrolytic capacitors (AECs) are usually employed in MMCs as floating capacitors due to their high volumetric efficiency and low
Deepak Ronanki, S. Williamson
semanticscholar   +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, Dong Liu 0006, Yanbo Wang 0002, Zhe Chen 0007, Ming Cheng 0001, Qingsong Wang 0001   +5 more
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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, Antonios Antonopoulos, Staffan Norrga, Lennart Angquist, Hans-Peter Nee   +4 more
openaire   +1 more source

Capacitor selection for modular multilevel converter

2014 IEEE Energy Conversion Congress and Exposition (ECCE), 2014
Submodule (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, Li Ran, Olayiwola Alatise, Philip Mawby   +3 more
openaire   +1 more source

A Multiport Power Electronic Transformer Based on Modular Multilevel Converter and Mixed-Frequency Modulation

IEEE Transactions on Circuits and Systems - II - Express Briefs, 2020
Power electronic transformer (PET) is a key apparatus in smart grid system, due to the advantages of power controllability and ac/dc grids interconnection.
Da-Jun Ma, Wu Chen, Liangcai Shu, X. Qu, Xin Zhan, Zhong Liu   +5 more
semanticscholar   +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   +2 more sources

Series-Connected-Based Offshore Wind Farms With Full-Bridge Modular Multilevel Converter as Grid- and Generator-side Converters

IEEE transactions on industrial electronics (1982. Print), 2020
Series-connected-based offshore wind farms can eliminate bulky central offshore converters, transformers, and platforms. In a series-connected-based offshore wind farm, the dc voltage of the converters should be changed within a large range to control ...
Gao-Peng Guo, Q. Song, Biao Zhao, H. Rao, Shukai Xu, Zhe Zhu, Wenhua Liu   +6 more
semanticscholar   +1 more source

A SiC MOSFET and Si IGBT Hybrid Modular Multilevel Converter With Specialized Modulation Scheme

IEEE transactions on power electronics, 2020
The utilization of silicon carbide (SiC) MOSFET instead of silicon (Si) IGBT can significantly improve the performance of many converters. However, a modular multilevel converter (MMC) completely based on the SiC MOSFET suffers from high cost and high ...
Tian-Xiang Yin, Chenxing Xu, Lei Lin, Kaiyuan Jing   +3 more
semanticscholar   +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

Modular‐multilevel converter topologies and applications – a review

IET Power Electronics, 2019
Recently developed modular-multilevel converter (M-MC) has a major attention in the industry and research works which is moving into feasible technology for many medium and high-power applications.
M. Priya, P. Ponnambalam, K. Muralikumar
semanticscholar   +1 more source