Results 91 to 100 of about 11,960 (229)

A comprehensive FRT strategy based on individual arm capacitor voltage control for MMC in hybrid AC/DC distribution grids

International Journal of Electrical Power & Energy Systems
Due to the wide application of modular multilevel converters (MMCs) in hybrid AC/DC distribution grids, enhancing the fault ride-through (FRT) capability of MMC is essential to improve the reliability of the hybrid AC/DC distribution grids. In this paper,
Yu Chen, Zhen Wang, Minghao Wen, Xianggen Yin   +3 more
doaj   +1 more source

Neuro Fuzzy Logic Controlled Parallel Resonance Type Fault Current Limiter to Improve the Fault Ride Through Capability of DFIG Based Wind Farm

IEEE Access, 2020
Doubly fed induction generators (DFIGs) are vulnerable to grid related electrical faults. Standards require DFIGs to be disconnected from the grid unless augmented with a fault ride through (FRT) capability.
Md. Rashidul Islam, Jakir Hasan, Md. Rezaur Rahman Shipon, Mohammad Ashraf Hossain Sadi, Ahmed Abuhussein, Tushar Kanti Roy   +5 more
doaj   +1 more source

Comparative Impedance Characteristic Analysis of Grid‐Following and Grid‐Forming Inverters

IET Renewable Power Generation, Volume 19, Issue 1, January/December 2025.
This paper comprehensively analyses the impedance characteristics of grid‐following and grid‐forming inverters at around synchronous frequency areas considering various operating and grid connection conditions and control settings. Both analytical and from EMT‐simulation extracted impedances are obtained for ensuring model plausibility.
Yonggang Zhang, Peter Unruh, Boris Fischer, Martin Braun   +3 more
wiley   +1 more source

Capacitor Voltage Imbalance Mechanism and Balancing Control of MMC When Riding Through PTG Fault

CSEE Journal of Power and Energy Systems
Modular multilevel converter (MMC) based fault ride through (FRT) control is a promising solution to deal with the pole-to-ground (PTG) fault in high voltage direct current (HVDC) system.
Zhen He, Maozeng Lu, Lijun Hang, Pingliang Zeng, Yanhua Liu   +4 more
doaj   +1 more source

Power Quality Improvement and Low Voltage Ride through Capability in Hybrid Wind-PV Farms Grid-Connected Using Dynamic Voltage Restorer [PDF]

, 2018
© 2018 IEEE. Translations and content mining are permitted for academic research only. Personal use is also permitted, but republication/redistribution requires IEEE permission.This paper proposes the application of a dynamic voltage restorer (DVR) to ...
Allaoui, Tayeb, Benali, Abdelkrim, Denai, Mouloud, Khiat, Mounir   +3 more
core   +2 more sources

A Fuzzy Logic Controller to Increase Fault Ride-Through Capability of Variable Speed Wind Turbines

Applied Computational Intelligence and Soft Computing, 2012
A fuzzy controller for improving Fault Ride-Through (FRT) capability of Variable Speed Wind Turbines (WTs) equipped with Doubly Fed Induction Generator (DFIG) is presented.
Geev Mokryani, Pierluigi Siano, Antonio Piccolo, Vito Calderaro   +3 more
doaj   +1 more source

Fault ride through strategy of DFIG using rotor voltage direct compensation control under voltage phase angle jump

CSEE Journal of Power and Energy Systems, 2019
Wind power has developed rapidly in recent years, and large-scale wind power facilities connected to power grids will bring many new challenges. Some new operation characteristics of power grids with doubly-fed induction generator (DFIG) may exhibit, for
Xinshou Tian, Weisheng Wang, Xiang Li, Yongning Chi, Yan Li, Haiyan Tang   +5 more
doaj   +1 more source

Comparative Evaluation between Direct Connected and VSC-HVDC Grid Connected Wind Farm [PDF]

, 2014
Nowadays, the penetration level of wind power generation plants has reached a high level. The double Fed Induction Generator (DFIG) based wind turbines are the most preferred type, due to their advantages.
E. Kahn, Mohamed Tariq, Giraneza, Martial   +1 more
core   +1 more source

AC Fault Ride-Through Method of HVDC Interconnector for Islanded AC Grid With Offshore Wind Farm and Loads

IEEE Access
This paper proposes an ac fault ride-through (FRT) method for high-voltage dc (HVDC) transmission systems that serve as an interconnector between the onshore ac grid and an islanded offshore ac grid.
Nikola Krneta, Kenichiro Sano
doaj   +1 more source

Fault Ride-Through Capacity Enhancement of Fixed Speed Wind Generator by A Modified Bridge-type Fault Current Limiter [PDF]

, 2014
Fault Ride-Through (FRT) is a common requirement to abide by grid code all over the world. In this work, to enhance the fault ride-through capability of a fixed speed wind generator system, a modified configuration of Bridge-Type Fault Current Limiter ...
Rashid, Gilmanur
core   +1 more source