Results 51 to 60 of about 708,045 (210)

Asymmetric Modular Multilevel Converter

, 2021
Tato diplomová práce se zabývá víceúrovňovým modulárním měničem s asymetrickou topologií modulu (A-MMC). V teoretické části popisuje jeho topologii, funkci, modulační techniky a problematiku balancování napětí na kondenzátorech.
Eva Matějková
core  

Single-Stage Control System of I-MMC-Based Island MVDC Link Receiver With Multiple Modulation Freedoms

IEEE Access, 2020
In the medium-voltage AC/DC distribution networks with distributed renewable sources on islands, a multi-port receiver is the key factor for hybrid power conversion.
Chuang Liu, Dehao Kong, Zhenbin Zhang, Zhongchen Pei, Ralph Kennel   +4 more
doaj   +1 more source

Comparison of full power frequency converter topologies for large capacity variable speed pumped storage units

电力工程技术
Variable speed pumped storage units have obvious advantages in efficiency and adaptability under various operation conditions compared with traditional fixed-speed pumped storage units.
Bo ZHAO, Fengyuan TIAN, Qichao ZHANG, Kaiguo WANG, Hao LIANG, Jinwu GONG   +5 more
doaj   +1 more source

Loss reduction analysis and control of AC-voltage-boosted FBSM MMC by injecting second harmonic circulating current

The Journal of Engineering, 2019
Reducing the power loss and handling short-circuit faults in HVDC systems are crucial for economical and reliable operation of modular multilevel converters (MMC). This paper proposes a loss reduction method for AC voltage-boosted FBSM-MMC by controlling
Muchao Xiang, Jiabing Hu, Zhiyuan He
doaj   +1 more source

A Comprehensive Review of Intelligent Fault Diagnosis and Resilient Fault‐Tolerant Control in the Design of Modern Modular Multilevel Converters

Engineering Reports, Volume 8, Issue 5, May 2026.
This review evaluates advanced intelligent fault diagnosis and resilient fault‐tolerant control strategies for modular multilevel converters (MMCs). It highlights how integrating machine learning with robust control architectures enhances reliability and operational continuity, providing a roadmap for developing more resilient, self‐healing power ...
Muhammad Haris Saleem, Arslan Ahmed Amin, Zuhair A. Alqarni, Umair Shahzad   +3 more
wiley   +1 more source

Cell capacitor sizing in multilevel converters: cases of the modular multilevel converter and alternate arm converter

, 2014
Multilevel converters, such as the modular multilevel converter (MMC) or the alternate arm converter (AAC), rely on charged capacitors in their cells to generate their AC voltage waveform.
Merlin, MMC, Green, TC
core   +1 more source

Reverse-blocking modular multilevel converter for battery energy storage systems

Journal of Modern Power Systems and Clean Energy, 2017
Energy storage systems with multilevel converters play an important role in modern electric power systems with large-scale renewable energy integration.
Xiaofeng YANG, Yao XUE, Bowei CHEN, Yajie MU, Zhiqin LIN, Trillion Q. ZHENG, Seiki IGARASHI   +6 more
doaj   +1 more source

Fault Detection and Classification in Five‐Level Reduced Device Count Multilevel Inverter Using Fuzzy Logic System

Energy Science &Engineering, Volume 14, Issue 5, Page 2626-2643, May 2026.
A fuzzy logic–based diagnostic framework for a reduced device count multilevel inverter to accurately detect and classify open‐circuit faults. ABSTRACT The reliable performance of multilevel inverters (MLIs) is critical to the advancement of power electronic systems used in renewable energy conversion, microgrid operation, and electric vehicle ...
Niraj Kumar Dewangan, Jeevan N. D., Krishna Kumar Gupta, Abhinandan Routray, Hani Vahedi   +4 more
wiley   +1 more source

Novel single‐armed modular multilevel converter for reducing total converter capacitance

IET Power Electronics, 2021
During normal operation of a conventional Modular Multilevel Converter (MMC), half of its capacitors remain bypassed at any time instant, increasing the total required capacitance for converter operation, and in turn leading to a larger size and volume ...
Hamed Pourgharibshahi, Seyyedmahdi Jafarishiadeh, Hamid Mahmoudi, Hassan Zargarzadeh, Reza Ahmadi   +4 more
doaj   +1 more source

Series Connection of LCC and Full Bridge MMC With DC Fault Ride‐Through Capability for Lightweight HVDC Transmission

Engineering Reports, Volume 8, Issue 4, April 2026.
In this work, we investigate a lightweight HVDC converter topology that combines the strengths of line‐commutated converters (LCC) and full‐bridge modular multilevel converters (MMC) to address the high cost and large footprint of conventional HVDC stations.
Yang Wang, Yuchao Zheng, Qian Wu, Linyuan Wang, Meng Ruan, Yixin Pan, Xiangjun Quan, Fei Zhang   +7 more
wiley   +1 more source