Results 41 to 50 of about 294 (180)

Morphology Engineering of Fe‐Doped NiCoP for Enhanced Water Splitting

Advanced Sustainable Systems, Volume 10, Issue 6, June 2026.
Engineering lattice asymmetry via Fe‐doping, resulting in an optimized a/c ratio of 1.734, triggers a morphological transition to a hierarchical nanoflake‐on‐nanoneedle heterostructure. This architectural design yields a massive ECSA of 1370 cm2, driving exceptional bifunctional activity and durability for high‐current industrial water splitting ...
Maysha Tahsin, Seung Joon Choi, Ge Li
wiley   +1 more source

Differential Analysis of Fault Currents in a Power Distribution Feeder Using abc, αβ0, and dq0 Reference Frames

Energies, 2022
This paper proposes a methodology to monitor the instantaneous value of the current and its derivative in the abc, αβ0, and dq0 reference frames to act in the detection of fault current in medium-voltage distribution systems.
Edmilson Bermudes Rocha Junior, Oureste Elias Batista, Domingos Sávio Lyrio Simonetti   +2 more
doaj   +1 more source

800 kV Fast Circuit Breaker: Mechanical Coupling Modelling, Buffer Design and Development

High Voltage, Volume 11, Issue 3, Page 715-724, June 2026.
ABSTRACT The 800 kV fast circuit breaker (CB) used in ultra‐high voltage (UHV) converter transformer can reduce the total breaking time to 25 ms. It significantly improves the action speed and breaking capacity of the CB, with promising broad application prospects.
Enyuan Dong, Sheng Yin, Yu Tian, Liyan Zhang, Ruilei Gong, Kejia Xie, Zhibing Li   +6 more
wiley   +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

Multiterminal High‐Voltage Direct Current Projects: A Comprehensive Assessment and Future Prospects

High Voltage, Volume 11, Issue 2, Page 317-344, April 2026.
ABSTRACT Multiterminal high‐voltage direct current (MT‐HVDC) systems are an important part of modern power systems, addressing the need for bulk power delivery and efficient renewable energy integration. This paper provides a comprehensive overview of recent advances in MT‐HVDC technology, including launched projects and ongoing initiatives.
Mohammad Hossein Mousavi, Hassan Moradi, Kumars Rouzbehi, Vijay K. Sood   +3 more
wiley   +1 more source

High Voltage DC Active Current Injection to Simulate Geomagnetically Induced Currents in New Zealand

Space Weather, Volume 24, Issue 3, March 2026.
Abstract This study investigates the effects of geomagnetically induced currents (GIC) on New Zealand's electrical infrastructure via an intentional ground injection of direct current (DC) from a high voltage DC converter station. GIC manifests as quasi‐DC currents within power systems, potentially causing transformer saturation, increased reactive ...
Soren Subritzky, Andrew Lapthorn, Stewart Hardie, Paul Agger, Mike Dalzell, Mark A. Clilverd, Neil Cobbett, Ciaran Beggan, Juliane Hübert, Eliot Eaton, James B. Brundell, Craig J. Rodger   +11 more
wiley   +1 more source

A Hybrid Ultra‐High Voltage DC Transformer With Digital Twin‐Driven Operation and Control

Digital Twins and Applications, Volume 3, Issue 1, January/December 2026.
This study introduces a digital twin‐driven hybrid ultra‐high‐voltage DC transformer (UHVDCT) that combines high‐capacity LCCs with low‐capacity MMCs at the UHV side. This innovative topology reduces MMC requirements by 32.9% while ensuring stable power flow and dynamic reactive balance through real‐time virtual‐physical synchronization.
Ling Xu, Le Zhao, Xiaohu Zhang, Hanlin Guo, Jie Fang, Zheren Zhang, Zheng Xu   +6 more
wiley   +1 more source

Thyristor Controlled Series Capacitor based on TLBO

International Journal of Recent Technology and Engineering, 2019
Thyristor Controlled Series Capacitor is main of the FACTS controller is an impedance compensation. The voltage power system should dependably in the reasonable range of ensure stability. A powerful technique of optimization is known as ‘Teaching–Learning-Based Optimization’. The New approach depends upon the impact of teacher on the output of learners
openaire   +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

Research on Voltage Regulation Methods for Flexible On‐Load Tap‐Changing Transformers

Electrical Materials and Applications, Volume 3, Issue 1, January/December 2026.
The control system determines whether the output voltage magnitude of the voltage source converter (VSC) is high, low or constant and generates the corresponding pulse signals. Each pulse is generated at the valve‐triggering instant, with its width corresponding to the commutation angle.
Weimei Zhao, Qiao Guangyao
wiley   +1 more source