Results 51 to 60 of about 11,960 (229)

Strengthening Renewable‐Rich Weak Grids Through Improved Voltage Stability and Fault‐Ride Through Capability

IET Renewable Power Generation, Volume 20, Issue 1, January/December 2026.
To enhance grid stability and resilience in high renewable energy scenarios, this research proposes a cascaded control optimization framework guided by a novel dynamic resilience metric. Validated on a representative Australian grid, the framework significantly reduced voltage overshoot and extended fault clearing times, offering a robust solution for ...
Sadnan Sakib, Muhammad Ahsan Zamee, M. J. Hossain, Md. Biplob Hossain, Md. Ahasan Habib   +4 more
wiley   +1 more source

Application of MMC with Embedded Energy Storage for Overvoltage Suppression and Fault Ride-through Improvement in Series LCC-MMC Hybrid HVDC System

Journal of Modern Power Systems and Clean Energy, 2023
The series line-commutated converter (LCC) and modular multilevel converter (MMC) hybrid high-voltage direct current (HVDC) system provides a more economical and flexible alternative for ultra-HVDC (UHVDC) transmission, which is the so-called Baihetan ...
Xiaodong Li, Zheng Xu, Zheren Zhang
doaj   +1 more source

An Overcurrent Suppression Strategy for Distributed Photovoltaic Inverters Under Unbalanced Faults Based on Adaptive Linear Active Disturbance Rejection Control

IET Smart Grid, Volume 9, Issue 1, January/December 2026.
After distributed photovoltaic (PV) systems are connected to the distribution network, the overcurrent problem caused by transient faults instantaneously threatens the safety of PV inverters and other equipment. This paper proposes a comprehensive control method that combines active‐loop adaptive linear active disturbance rejection control (A‐LADRC ...
Dandan Zhu, Qian Zhou, Yongyong Jia, Dajiang Wang, Jianhui Meng, Xintong Dong, Junyuan Zhang   +6 more
wiley   +1 more source

Adaptive Gain Scheduling Control of Doubly Fed Induction Generator Based Wind Turbines to Improve Fault Ride Through Performance [PDF]

International Journal of Industrial Electronics, Control and Optimization, 2018
The Doubly-Fed Induction Generators (DFIG) based Wind Turbines (WT) are widely used in WTs connected to power systems. Traditionally the back-to-back converters are used in order to control the DFIG.
Ahmad Khajeh, Zahra Shabani
doaj   +1 more source

Optimal Linear Protection Scheme of Inverter‐Based Distributed Energy Resources: Meeting Fault‐Ride‐Through Requirement

International Journal of Energy Research, Volume 2026, Issue 1, 2026.
This paper presents a new two‐stage protection strategy for active distribution networks that not only addresses selectivity constraints along protected lines but also incorporates fault‐ride‐through (FRT) requirements of inverter‐based distributed energy resources (IBDERs). The proposed coordination strategy (PCS), which distinguishes it from previous
Amin Yazdaninejadi, Hossein Ebrahimi, Sajjad Golshannavaz, Zhiyi Li, Rajashik Paul   +4 more
wiley   +1 more source

Enhanced fault ride-through control for grid-forming inverters: comparative analysis and adaptive strategies

International Journal of Electrical Power & Energy Systems
As renewable energy technologies increasingly dominate as primary power sources, grid-forming (GFM) inverters have emerged as crucial components for future low inertia power systems, offering flexible inertia support and autonomous grid-forming ...
Liang Yuan, Zheng Liang, Hua Han, Mingxin Hu, Xubin Liu, Zhao Yang Dong   +5 more
doaj   +1 more source

Establishing the Partial Load Limits for Main Shaft Response Prediction in Wind Turbine Hybrid Nacelle Testing

Wind Energy, Volume 28, Issue 5, May 2025.
ABSTRACT Hybrid nacelle testing is a novel testing method that utilizes partial load tests in combination with virtual models to extrapolate the response at full load of the nacelle device under test. Validation of the virtual model at partial loads plays a crucial role in this type of hybrid test approach.
Muhammad Omer Siddiqui, Amir R. Nejad, Jan Wenske   +2 more
wiley   +1 more source

A novel FRT strategy for transformerless MMC to improve current differential protection performance under single-phase grounding faults

International Journal of Electrical Power & Energy Systems
AC/DC distribution networks are interconnected by converters such as modular multilevel converters (MMCs). In AC/DC distribution networks, single-phase grounding (SPG) faults can cause enormous challenges in relay protection.
Yuze Li, Peng Guo, Qianming Xu, Josep M. Guerrero   +3 more
doaj   +1 more source

Fault Ride-Through Operation Analysis of Doubly Fed Induction Generator-Based Wind Energy Conversion Systems: A Comparative Review

Energies, 2022
In present electrical power systems, wind energy conversion systems based on doubly fed induction generators represent one of the most commonly accepted systems in the global market due to their excellent performance under different power system ...
Aftab Ahmed Ansari, Giribabu Dyanamina
doaj   +1 more source

International White Book on DER Protection : Review and Testing Procedures [PDF]

, 2011
This white book provides an insight into the issues surrounding the impact of increasing levels of DER on the generator and network protection and the resulting necessary improvements in protection testing practices.
Abdulhadi, Ibrahim Faiek, Booth, Campbell, Burt, Graeme, Coffele, Federico, Crolla, Paul, Dysko, Adam, Li, Xinyao, Schafer, Nils   +7 more
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