Results 101 to 110 of about 4,811 (257)

The application of the modular multilevel matrix converter in high-power wind turbines [PDF]

The trend in wind turbines has shown an ongoing power rating growth, reaching sizes up to 10 MW. Multilevel converters have therefore become a favourable solution for Multi-MW Wind Energy Conversion Systems (WECSs), due to high efficiency, reliability ...
Cardenas, Roberto, Diaz, Matias, Espinoza, Mauricio, Mora, Andreas, Wheeler, Patrick   +4 more
core  

A review of power converter topologies with medium/high frequency transformers for grid interconnection systems [PDF]

, 2016
In recent years, power electronics has evolved dra¬matically due to their importance in power extracted manage¬ment from renewable sources. In this paper an overview of grid interconnection systems with galvanic isolation is presented.
Costabeber, Alessando, Nasir, Usman, Rivera, Marco, Toleda, Sergio, Wheeler, Patrick   +4 more
core   +1 more source

Disturbance‐Resilient Voltage/Power‐Quality Management for Islanded Inverters Using Self‐Tuning Type‐3 Fuzzy Controller

Energy Science &Engineering, EarlyView.
An adaptive fuzzy controller using an interval type‐3 fuzzy logic system replaces the SMC switching term to mitigate chattering while preserving global stability for islanded inverters. Simulations show lower THD, greater robustness to disturbances and parameter variations, and improved voltage‐tracking accuracy, with applicability to other uncertain ...
Man‐Wen Tian, Jun‐Bo Mao, Nurkhat Zhakiyev, Didar Yedilkhan, Ruslan Omirgaliyev, Du Changdong, Amirhossein Khosravi Sarvenoee, Ardashir Mohammadzadeh   +7 more
wiley   +1 more source

Analytical monodromy matrix method for small-signal stability analysis of grid-connected modular multilevel converter systems

International Journal of Electrical Power & Energy Systems
The modular multilevel converter (MMC) has been widely used in high-voltage/high-power applications, e.g., high-voltage direct current transmission. However, its nonlinear time-periodic nature leads to complex harmonic interactions and then complicates ...
Xiaofan Jia, Hua Ye
doaj   +1 more source

Modular input-parallel output-series DC/DC converter control with fault detection and redundancy [PDF]

, 2016
Large offshore wind farms require extensi ve sub-sea cables within the collection network. Present solutions are based aro und medium-voltage AC collection networks.
Adam, G.P., Finney, S.J., Holliday, D., Lian, Y.   +3 more
core   +1 more source

Material design strategies for flexible n‐type polymer semiconductors

FlexMat, EarlyView.
This Perspective surveys recent progress in flexible n‐type polymer semiconductors, emphasizing the interplay between molecular design and microstructure control. It outlines strategies including backbone and side‐chain engineering, multilevel microstructure optimization, to maintain charge‐transport pathways under mechanical deformation.
Xiao‐Yan Zhang, Yang‐Yang Zhou, Jie‐Yu Wang, Jian Pei, Ze‐Fan Yao   +4 more
wiley   +1 more source

Circulating Current Suppression Strategy of Modular Multilevel Matrix Converter Based on Quasi-Proportional Resonant Control

Shanghai Jiaotong Daxue xuebao
Modular multilevel matrix converter (M3C) is the core device of the fractional frequency transmission system. Due to the lack of direct current link, the electrical quantities of different frequencies are directly coupled inside the M3C, resulting in a ...
JIANG Yafeng, LI Yibo, WU Qiuwei, LIU Shenquan, WU Xiaodan, ZHOU Qian
doaj   +1 more source

Research on an Asymmetric Fault Control Strategy for an AC/AC System Based on a Modular Multilevel Matrix Converter

Energies, 2019
This paper studies control strategies for an AC/AC system based on a modular multilevel matrix converter (M3C) when an asymmetric fault occurs in the secondary side ac system.
Chong Zhang, Daozhuo Jiang, Xuan Zhang, Yiqiao Liang   +3 more
doaj   +1 more source

Electro-thermal Control of Modular Battery using Model Predictive Control with Control Projections [PDF]

, 2015
This paper proposes a novel model predictive control algorithm to achieve voltage regulation and simultaneous thermal and SOC balancing of a modular battery using limited future load information. The modular battery is based on multilevel converter (MLC),
Altaf, Faisal, Egardt, Bo, Johannesson, Lars   +2 more
core   +1 more source

Ultrafast in‐memory computing and highly efficient deep neural networks driven by phase‐change memory materials with partially amorphous state transitions

InfoScience, EarlyView.
This work addresses challenges including the nonlinear weight‐conductance update and the trade‐off between increasing melting uniformity and reducing solid‐to‐liquid transition time. It utilizes all four melting states to create an integrated framework for attaining in‐memory computing and deep neural network applications. The framework achieves a near‐
Kian‐Guan Lim, Shao‐Xiang Go, Qiang Wang, Dong‐Gwan Kim, Chan‐Hwi Baek, Qishen Wang, Tae Hoon Lee, Desmond K. Loke   +7 more
wiley   +1 more source