Results 31 to 40 of about 4,922,386 (131)

A Hybrid Energy Storage‐Based 800 V DC Distribution Architecture and Hierarchical Rolling Scheduling Strategy for Intelligent Data Centres

Energy Internet, EarlyView.
ABSTRACT Intelligent computing loads, which are characterised by high‐power density and impulsive, pose a significant challenge to high‐power impact resilience and fast dynamic response capability of the internal power supply system in data centres. To tackle this challenge, this paper proposes an 800 V HVDC distribution architecture integrated with ...
Yanlin Song, Min Chen, Xiaojun Wang, Mohammad Shahidehpour, Yongqin Qiu   +4 more
wiley   +1 more source

Mechanism of Damage and Micro‐Characterisation of Irradiation‐Induced Free Radicals on the Epoxy Insulation of the Bridge Arm Reactors at High Altitude

High Voltage, EarlyView.
ABSTRACT Damage degradation of epoxy resin insulating materials by free radicals triggered by the ultraviolet irradiation environment at high altitude has become a key issue that restricts the reliability of the bridge arm reactor at high altitude.
Liang Zou, Xinya Luo, Zhiyun Han, Zhen Li, Xiaofeng Ding, Kejie Huang   +5 more
wiley   +1 more source

Comparison between two VSC-HVDC transmission systems technologies : modular and neutral point clamped multilevel converter [PDF]

, 2009
The paper presents a detail comparison between two voltage source converter high voltage dc transmission systems, the first is based on neutral point-clamped (also known as HVDC-Light) and the second is based on innovative modular multilevel converter ...
Anaya-Lara, O., Finney, S.J., Burt, G.M., Adam, G.P., Williams, B.W., McDonald, J.R.   +5 more
core   +2 more sources

Analysis of stable operation region of the hybrid AC/DC distribution systems

The Journal of Engineering, 2020
Hybrid alternating current (AC)/direct current (DC) distribution is a promising technology emerging for future power systems owing to its advantages, such as high controllability and compatibility.
Ming Wu, Rui Li, Linze Yang, Hanwen Gu, Yueqi Wang, Zaibin Jiao   +5 more
doaj   +1 more source

Deterioration Law of Mechanical Properties of Insulation Pressboard Under Multifield Coupled Ageing

High Voltage, EarlyView.
ABSTRACT Converter transformers can experience progressive deterioration of their oil–pressboard insulation under elevated temperature, combined AC–DC electrical stress and persistent mechanical vibration. This study investigates how mechanical vibration affects the mechanical properties of insulation pressboard and clarifies the associated microscopic
Jiayi Chen, Guan Wang, Zihao Li, Zhongyu Zhao, Kuo Yan, Hongshun Liu   +5 more
wiley   +1 more source

Quasi square wave operation of modular multilevel converter based dual active bridge DC–DC converter with inductor energy recovery

IET Power Electronics
The modular multilevel DC–DC transformer (MMDCT) provides a reliable solution to overcome the challenges of conventional dual‐active‐bridge converters in terms of power semiconductors ratings and dv/dt stress on transformer coupling windings.
Peizhou Xia, Chuantong Hao, Paul Judge, Michael Merlin, Stephen Finney   +4 more
doaj   +1 more source

Power Electronic Converters Evolution In Transmission System: HVDC & FACTS Device [PDF]

E3S Web of Conferences
Power electronics have helped achieve this objective of increasing capacity while improving reliability and sustainability and reducing operating costs over the years. They have provided added flexibility and control to power systems.
Rao D. S. N. M., Cenate Theresa C.F., Dhabliya Dharmesh, Alabdeli Haider, Hussein Abbas Hameed Abdul   +4 more
doaj   +1 more source

A NOVEL CONTROL STRATEGY FOR SERIES-SHUNT POWER QUALITY COMPENSATOR [PDF]

, 2015
Advancement and extensive use of power electronic devices such as, fast switching uncontrolled/controlled convertors, invertors and cyclo-converters, high voltage power convertors used in HVDC, high voltage drives in traction system, arc furnaces, modern
PATIL, DADGONDA, RAOKHANDE, DEVENDRA LAXMAN, DEVENDRA LAXMAN RAOKHANDE, DADGONDA PATIL   +3 more
core   +1 more source

Zero‐Current Switching Based Model Predictive Control of a Double‐Extended Overlapped Alternate Arm Converter Used in the VSC–HVDC System

High Voltage, EarlyView.
ABSTRACT The alternate arm converter (AAC) is one of the most efficient multilevel topologies based on voltage source converters (VSCs), which has recently gained attention in various applications, particularly in high voltage direct current (HVDC) systems.
Ehsan Akbari, Milad Samady Shadlu
wiley   +1 more source

Robust sliding mode control for the MMC‐HVDC transmission system with SCR uncertainty

IET Power Electronics
Modular multilevel green converter based high voltage direct current (MMC‐HVDC) transmission system has become a practical solution to interconnect renewable energy sources to main AC grids. Connecting the MMC to a weak AC system is still a challengeable
Farzin Gharaghani, Mehdi Asadi
doaj   +1 more source