Results 31 to 40 of about 304 (145)

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

Recent Advances in Hybrid, Plug‐In, Battery, and Fuel Cell EVs: Control Schemes, Modes, Converter Topologies, and Pros and Cons

IET Electrical Systems in Transportation, Volume 2026, Issue 1, 2026.
Direct current (DC)–DC converters are the backbone of electric vehicle (EV) power trains, enabling efficient and bidirectional energy flow between the battery, high‐voltage (HV) DC link, and auxiliary rails under tight isolation, gain, ripple, and electromagnetic interference (EMI) constraints.
Abhilash Sakhare, Suresh Mikkili, Praveen Kumar Bonthagorla, Fabio Crescimbini   +3 more
wiley   +1 more source

Quantitative Analysis of the Fault Ride-Through Current and Control Parameters in Hybrid Modular Multilevel Converters

Applied Sciences
A quantitative analysis of the fault transient is critical for system resilience assessment and protection coordination. Focusing on hybrid modular multilevel converter (MMC)-based HVDC architecture with enhanced fault ride-through (FRT) capability, this
Yi Xu, Bowen Tang
doaj   +1 more source

Predicting the Fault‐Ride‐Through Probability of Inverter‐Dominated Power Grids Using Machine Learning

IET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.
We present the first comprehensive demonstration of machine learning's potential in probabilistic dynamic stability analysis for power grids, using fault‐ride‐through probability as a practical metric. Our ML models, trained on synthetic grid simulations, accurately predict stability outcomes and component criticality while generalizing well to ...
Christian Nauck, Anna Büttner, Sebastian Liemann, Frank Hellmann, Michael Lindner   +4 more
wiley   +1 more source

Modular Fault‐Limiting and Ride‐Through Coordination for Cost‐Effective Protection of LVDC Distribution Networks

IET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.
This paper proposes a modular fault‐limiting strategy that integrates multi‐port modules with DC circuit breakers to enhance system regulation. This coordination enables the use of cost‐effective mechanical breakers while significantly improving the fault‐ride‐through capabilities of the distribution network.
Xiaoyong Cao, Jiaming Weng, Dong Liu, Fei Chen, Gaoming Li, Weinian Ouyang, Pengfeng Lin   +6 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

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

Improving Power Quality and Fault Ride-Through (FRT) in Grid-Connected Hybrid Energy Systems: Design and Optimization of Dynamic Voltage Restorers

SMART MOVES JOURNAL IJOSCIENCE
The integration of renewable energy sources (RESs) into grid-connected systems has become pivotal in addressing climate change and building a sustainable, carbon-neutral society. However, challenges like power quality issues, grid stability, and fault ride-through (FRT) requirements remain significant.
Vardhan Patidar, Ashish Bhargava
openaire   +1 more source

Sub‐Synchronous Oscillation in Offshore Energy Islands With MMC‐HVDC Links: Mechanism, Analysis and Mitigation

IET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.
This paper investigates the small‐signal stability of offshore energy islands interconnected by multiple MMC‐HVDC links and reveals a previously unreported sub‐synchronous oscillation (SSO) mechanism caused by multi‐converter coupling through the offshore AC network.
Arash July, Mehdi Savaghebi, Sam Roozbehani, Gen Li, Nicolaos A. Cutululis, Maryam Saeedifard   +5 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