Results 101 to 110 of about 36,514 (225)

Melt Grafting of Geometry‐Tailored Voltage Stabilizers for High‐Performance Polypropylene Insulation

Advanced Functional Materials, Volume 36, Issue 30, 13 April 2026.
A scalable one‐step melt grafting strategy is developed to enhance the dielectric properties of isotactic polypropylene by covalently incorporating thermally stable aromatic voltage stabilizers. This solvent‐free approach improves volume resistivity and DC breakdown strength through deep trap formation and charge localization, offering a sustainable ...
Nazirul Mubin bin Normansah, Taehoon Kwon, Hana Kim, Shin‐Ki Hong, Seung Won Lee, Se Hee Lee, Ik‐Su Kwon, Masahiro Kozako, Minhee Kim, Seunggun Yu   +9 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

Design and implementation of 30kW 200/900V LCL modular multilevel based DC/DC converter for high power applications [PDF]

, 2016
This paper presents the design, development and testing of a 30kW, 200V/900V modular multilevel converter (MMC) based DC/DC converter prototype. An internal LCL circuit is used to provide voltage stepping and fault tolerance property.
Aboushady, A., Ahmed, K.H., Fazeli, S.M., Jovcic, D.   +3 more
core   +2 more sources

Mesh‐Based Charge Simulation Method and Its Applications to Electrostatic Electric Field Computation

High Voltage, Volume 11, Issue 2, Page 399-409, April 2026.
ABSTRACT The charge simulation method (CSM) is a well‐established numerical technique employed in electrostatic field calculations, primarily due to its simplicity and computational efficiency. However, conventional CSM face challenges when applied to complex geometries, as they necessitate meticulous manual placement of simulation charges and matching
Tahan Wang, Kun He, Fangyuan Cao, Bo Chen, Li Xie, Jiayu Lu   +5 more
wiley   +1 more source

System Constrained Active Power Loss Minimization in Practical Multi-terminal HVDC Systems through GA

Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2018
In this paper, a novel optimal reactive power flow solution approach inmulti-terminal HVDC (High Voltage Direct Current) systems is studied. ULTCs’(under load tap changer transformers) full equivalent model for the DCconverters’ are taken into account in
Faruk Yalçın, Uğur Arifoğlu
doaj   +1 more source

Distributed Secondary Frequency Control through MTDC Transmission Systems

, 2015
In this paper, we present distributed controllers for sharing primary and secondary frequency control reserves for asynchronous AC transmission systems, which are connected through a multi-terminal HVDC grid.
Andersson, Göran, Andreasson, Martin, Dimarogonas, Dimos V., Johansson, Karl H., Wiget, Roger   +4 more
core   +2 more sources

System configuration, fault detection, location, isolation and restoration: a review on LVDC Microgrid protections [PDF]

, 2019
Low voltage direct current (LVDC) distribution has gained the significant interest of research due to the advancements in power conversion technologies. However, the use of converters has given rise to several technical issues regarding their protections
Bououden, Burt, Callavik, Dong Chen, Mitchell, Mohamed Emad Farrag, Oudalov, Waqas Javed, Wu, Xue, Yan Xu, Zhong   +11 more
core   +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

Research of optimized sorting algorithm of capacitor voltage for MMC

Gong-kuang zidonghua, 2014
The paper researched primary cause of increasing of switching frequency of modular multilevel converter led by traditional capacitor voltage sorting algorithm according to operation principle of the converter. It proposed an improved sorting algorithm of
SONG Pinggang, JIANG Lang, LI Yunfeng, DUAN Chengting   +3 more
doaj   +1 more source

Monitoring contamination level on insulator materials under dry condition with a microwave reflectometer [PDF]

, 2016
Current techniques used for monitoring the levels of contamination on high voltage insulators, such as leakage current and infrared, are not effective in dry conditions since they require the surface of the insulator to be wetted by fog, rain or snow. If
Jiang, Y., Judd, M.D., McMeekin, S.G., Nekahi, A., Reid, A.J., Wilson, A.   +5 more
core   +1 more source