Global optimization of high-power modular multilevel active-front-end converter using analytical model
Sign Up to like & getrecommendations! Published in 2018 at "Electrical Engineering"
DOI: 10.1007/s00202-017-0523-5
Abstract: Modular multilevel converters (MMCs) have emerged in response to increasing the demands of converter in high-power applications. Because of the modularity, MMC structures are ideal in order to use in high voltage and current applications.… read more here.
Keywords: modular multilevel; analytical model; high power; multilevel active ... See more keywords
DC fault analysis for modular multilevel converter-based system
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Modern Power Systems and Clean Energy"
DOI: 10.1007/s40565-015-0174-3
Abstract: DC fault protection is the key technique for the development of the DC distribution and transmission system. This paper analyzes the transient characteristics of DC faults in a modular multilevel converter (MMC) based DC system… read more here.
Keywords: modular multilevel; fault; based system; system ... See more keywords
Novel submodule voltage balancing topology for hybrid modular multilevel converters
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Power Electronics"
DOI: 10.1007/s43236-021-00285-x
Abstract: A hybrid modular multilevel converter (HMMC) topology based on a bidirectional diode clamp circuit is proposed in this paper. The proposed topology ensures that the voltages at the ends of the capacitance between the two… read more here.
Keywords: voltage; modular multilevel; hybrid modular; diode clamp ... See more keywords
Lifetime and reliability improvements in modular multilevel converters using controlled circulating current
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Power Electronics"
DOI: 10.1007/s43236-021-00297-7
Abstract: Circulating current has been an inherent feature of modular multilevel converters (MMC), which results in second-order harmonics on the arms currents. If not properly controlled, the circulating current can affect the lifetime and reliability of… read more here.
Keywords: modular multilevel; circulating current; controlled circulating; multilevel converters ... See more keywords
Calculation of the number of modules and the switching frequency of a modular multilevel converter using near level control
Sign Up to like & getrecommendations! Published in 2018 at "Electric Power Systems Research"
DOI: 10.1016/j.epsr.2018.08.019
Abstract: Abstract This paper is focused on the modular multilevel converter (MMC) topology that uses the near level control (NLC) method. Specifically, it addresses the relationship between the number of levels or switching modules, the switching… read more here.
Keywords: near level; modular multilevel; switching frequency; number ... See more keywords
Circulating current control scheme of modular multilevel converters supplying passive networks under unbalanced load conditions
Sign Up to like & getrecommendations! Published in 2019 at "Electric Power Systems Research"
DOI: 10.1016/j.epsr.2019.01.041
Abstract: Abstract Load imbalances in the supply of passive loads with modular multilevel converter (MMC)-based medium (MVDC) and high voltage (HVDC) dc-links are inevitable. In such applications, the maximum-allowable voltage ripples and peak arm currents define… read more here.
Keywords: load conditions; unbalanced load; current control; modular multilevel ... See more keywords
New modulation scheme and voltage balancing control of modular multilevel converters for modern electric ships
Sign Up to like & getrecommendations! Published in 2019 at "IET Power Electronics"
DOI: 10.1049/iet-pel.2018.6362
Abstract: The distinctive features such as fault-tolerability, modularity, power and voltage scalability have propelled modular multilevel converters (MMCs) as one of the emerging power converter topologies for marine applications. Pulse-width modulation (PWM) schemes are widely used… read more here.
Keywords: voltage balancing; control; voltage; scheme ... See more keywords
Zero DC voltage ride through of a hybrid modular multilevel converter in HVDC systems
Sign Up to like & getrecommendations! Published in 2017 at "Iet Renewable Power Generation"
DOI: 10.1049/iet-rpg.2016.0108
Abstract: This study presents a comprehensive analysis and a suppression method of sub-modules’ (SMs’) voltage stress in the hybrid modular multilevel converters when riding through zero DC voltage faults in high-voltage direct-current (HVDC) systems. First, the… read more here.
Keywords: voltage; modular multilevel; hybrid modular; zero voltage ... See more keywords
High voltage repetitive pulsed power generator by using modular multilevel converter
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Ambient Energy"
DOI: 10.1080/01430750.2017.1405281
Abstract: ABSTRACT This paper proposes the development of silicon carbide junction field effect transistor-based high-frequency link (HFL) modular multilevel converter (MMC). HFL has been used in conjunction with MMC to achieve higher current density with less… read more here.
Keywords: high voltage; modular multilevel; multilevel converter; voltage repetitive ... See more keywords
Simplified Indirect Model Predictive Control Method for a Modular Multilevel Converter
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Access"
DOI: 10.1109/access.2018.2876505
Abstract: Demand for modular multilevel converters (MMCs) has been steadily increasing for utilization in medium- to high-power applications because of qualities such as high modularity, easy scalability, and superior harmonic performance. Furthermore, there has been a… read more here.
Keywords: model predictive; modular multilevel; control; number ... See more keywords
Hybrid Modular Multilevel Converter With Arm-Interchange Concept for Zero-/Low- Frequency Operation of AC Drives
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Access"
DOI: 10.1109/access.2020.2966048
Abstract: DC-AC Modular Multilevel Converter (MMC) is a promising candidate for high-power AC drive applications. The main challenge of operating the MMC in AC drive applications is its performance during low-frequency conditions, as high voltage ripple… read more here.
Keywords: converter; low frequency; frequency; modular multilevel ... See more keywords