Results 11 to 20 of about 77,102 (304)

Enhanced independent pole control of hybrid MMC-HVDC system [PDF]

IEEE Transactions on Power Delivery, 2018
This paper presents an enhanced independent pole control scheme for hybrid modular multilevel converter (MMC) based on full bridge sub-module (FBSM) and half bridge sub-module (HBSM). A detailed analysis of power distribution between upper and lower arms
Ling, Weixing, Wen, Jingyu, Xiang, Wang, Xu, Lie   +3 more
core   +4 more sources

Controller Architecture Design for MMC-HVDC

Advances in Electrical and Computer Engineering, 2014
Compared with high voltage direct current (HVDC), the primary and secondary systems of modular multilevel converter based HVDC (MMC-HVDC) are complicated.
ZHANG, B., ZHAO, C., GUO, C., XIAO, X., ZHOU, L.   +4 more
doaj   +2 more sources

On Converter Fault Tolerance in MMC-HVDC Systems:A Comprehensive Survey [PDF]

IEEE Journal of Emerging and Selected Topics in Power Electronics, 2021
Since they were first proposed, modular multilevel converters have been strongly studied in the literature. Due to their high component count, some concerns regarding their reliability arise, and several fault-tolerance schemes have been proposed in ...
Cupertino, Allan Fagner, Farias, Jo Ao Victor Matos, Pereira, Heverton Augusto, Seleme, Seleme Isaac, Teodorescu, Remus   +4 more
core   +4 more sources

A Secure Fault Identification Approach for MMC‐HVDC Network [PDF]

International Transactions on Electrical Energy Systems
In high voltage direct current (HVDC) systems, the occurrence of short circuits results in a rapid rise in line current, adversely affecting the interconnected alternating current (AC) grid. Particularly in voltage source‐based multimodular converter (MMC) HVDC networks, such transients pose a significant threat to power converter units.
Kiran Rana, Monalisa Biswal, Nand Kishor, Richa Negi   +3 more
openalex   +3 more sources

Fault Detection and Classification in MMC-HVDC Systems Using Learning Methods. [PDF]

Sensors (Basel), 2020
In this paper, we explore learning methods to improve the performance of the open-circuit fault diagnosis of modular multilevel converters (MMCs). Two deep learning methods, namely, convolutional neural networks (CNN) and auto encoder based deep neural networks (AE-based DNN), as well as stand-alone SoftMax classifier are explored for the detection and
Wang Q, Yu Y, Ahmed HOA, Darwish M, Nandi AK.   +4 more
europepmc   +8 more sources

Demonstration of Converter Control Interactions in MMC-HVDC Systems [PDF]

Electronics, 2022
Although the control of modular multi-level converters (MMCs) in high-voltage direct-current (HVDC) networks has become a mature subject these days, the potential for adverse interactions between different converter controls remains an under-researched challenge attracting the attention from both academia and industry.
Jinlei Chen, Sheng Wang, Carlos E. Ugalde-Loo, Wenlong Ming, Oluwole D. Adeuyi, Salvatore D’Arco, Salvador Ceballos, Max Parker, Stephen Finney, Andrea Pitto, Diego Cirio, Iñigo Azpiri   +11 more
openaire   +6 more sources

Generic Analysis Framework for Modular Multilevel Converter HVDC with Multi-Infeed Line-Commutated Converter HVDC System

Energies, 2021
This paper proposes a generic analysis framework for a grid supporting modular multilevel converter (MMC)-high voltage DC (HVDC) in a multi-infeed of line commutated converter (LCC) and MMC (MILM) system. MMC-HVDC can support the grid by compensating for
Sehyun Kim, Kyeon Hur, Jongseo Na, Jongsu Yoon, Heejin Kim   +4 more
doaj   +1 more source

Impedance Modeling Method of Offshore Wind Farm Integration Through MMC-HVDC With MMC Circulation Control

Zhongguo dianli, 2023
Based on impedance analysis, this paper focuses on the circulation control of a modular multilevel converter (MMC) and conducts in-depth research on the stability impact of offshore wind farm integration based on a permanent magnetic synchronous ...
Shuting YANG, Xin CHEN, Tong HUANG, Qixuan WEI   +3 more
doaj   +1 more source

MMC-HVDC: Simulation and control system [PDF]

2016 IEEE Energy Conversion Congress and Exposition (ECCE), 2016
Simulation of modular multilevel converter (MMC) based high-voltage direct current (HVDC) systems assumes significance due to their growing popularity. It could assist with the design of hardware, control systems of MMC and HVDC networks, and power system topology.
Suman Debnath, Madhusudhan Chinthavali
openaire   +1 more source

Internal Energy Based Grid-Forming Control for MMC-HVDC Systems With Wind Farm Integration

IEEE transactions on industry applications, 2023
The virtual synchronous generator (VSG) control is regarded as an effective solution for operating converters in weak grid conditions due to its excellent grid support functions. However, successful implementation of the VSG control of an AC/DC converter
Renxin Yang, G. Shi, Chen Zhang, Gen Li, X. Cai   +4 more
semanticscholar   +1 more source