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Small Signal Model of Modular Multilevel Matrix Converter for Fractional Frequency Transmission System

open access: yesIEEE Access, 2019
Fractional frequency transmission is a promising technology for medium distance offshore wind power transmission. The key component in the fractional frequency transmission system (FFTS) is the modular multilevel matrix converter (M3C). It is regarded as
Jiajie Luo, Xiao-Ping Zhang, Ying Xue
doaj   +1 more source

X-Y converter family: A new breed of buck boost converter for high step-up renewable energy applications [PDF]

open access: yes, 2016
A new breed of a buck boost converter, named as the XY converter family is proposed in this article. In the XY family, 16 topologies are presented which are highly suitable for renewable energy applications which require a high ratio of DC-DC converter ...
Blaabjerg, Frede   +5 more
core   +3 more sources

Harmonic Analysis of Modular Multilevel Matrix Converter for Fractional Frequency Transmission System [PDF]

open access: yesIEEE Transactions on Power Delivery, 2020
Fractional Frequency Transmission is a competitive technology for offshore wind power transmission. Modular Multilevel Matrix Converter (M3C) plays a key role in a Fractional Frequency Transmission System (FFTS) as the frequency changer. M3C is broadly considered as the AC–AC converter for the future with its attractive advantages in high voltage and ...
Jiajie Luo   +4 more
openaire   +1 more source

Modeling and Harmonic Stability of MMC-HVDC With Passive Circulating Current Filters

open access: yesIEEE Access, 2020
A modular multilevel converter (MMC) is an emerging converter technology widely used in wind power applications using high-voltage direct current (HVDC) transmission, and it has been largely investigated in medium-voltage solar harvesting as well as ...
Bo Zhang, Hamed Nademi
doaj   +1 more source

Model Predictive Control for Power Converters and Drives: Advances and Trends [PDF]

open access: yes, 2017
Model predictive control (MPC) is a very attractive solution for controlling power electronic converters. The aim of this paper is to present and discuss the latest developments in MPC for power converters and drives, describing the current state of this
García Franquelo, Leopoldo   +4 more
core   +1 more source

Recent Advances on Thermochromic Inks for Security Applications

open access: yesAdvanced Materials Technologies, EarlyView.
Thermochromic security inks have garnered interest in recent years as security elements for authentication, information encryption, and anti‐counterfeiting. This review outlines different types of thermochromic materials, how they have been developed as functional inks, and how advancements in property enhancement, sustainability, and printing ...
Duarte B. Oliveira   +5 more
wiley   +1 more source

Multi-hierarchy control strategy in abc coordinate for modular multilevel matrix converter in fractional frequency transmission system

open access: yesThe Journal of Engineering, 2019
This paper proposes a multi-hierarchy control strategy in abc coordinate for modular multilevel matrix converter (M^3C) in fractional frequency transmission system (FFTS).
Zhujian Ou, Guangzhu Wang
doaj   +1 more source

The analytical model of modular multilevel converter based on the harmonic balance theory

open access: yesEnergy Reports, 2020
This paper proposes an analytical model for the modular multilevel converter (MMC) based on the theory of harmonic balance, which removes the iteration process for traditional models. The proposed model considers dynamic harmonic interactions between the
Lijun Xie   +5 more
doaj   +1 more source

Comprehensive optimization framework for transmission expansion planning with fractional frequency transmission system

open access: yesIET Generation, Transmission & Distribution, 2023
The Fractional Frequency Transmission System (FFTS) operates with low frequency to decrease the electrical length of AC transmission lines, consequently enhancing transmission capacity.
Zhongqi Cai   +6 more
doaj   +1 more source

Morphing Switched-Capacitor Converters with Variable Conversion Ratio [PDF]

open access: yes, 2015
High-voltage-gain and wide-input-range dc-dc converters are widely used in various electronics and industrial products such as portable devices, telecommunication, automotive, and aerospace systems.
Huang, Y, Hui, SYR, Tan, SC, Xiong, S
core   +1 more source

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