Results 51 to 60 of about 2,596,360 (213)

The Surface Potential Restoration Algorithm of Electrostatic Capacitance Probe During On‐Line Measurement

open access: yesHigh Voltage, EarlyView.
ABSTRACT The surface charge accumulation on insulators is one of the important factors that limit the development of high‐voltage direct current (HVDC) gas insulated transmission line (GIL), and the accurate measurement of surface charge is the basis to explore its physical mechanism.
Lei Zhang   +3 more
wiley   +1 more source

Micro Partial Discharge Characteristics of SF6 Under DC Voltage

open access: yesHigh Voltage, EarlyView.
ABSTRACT In gas‐insulated high‐voltage direct current (HVDC) devices, micro partial discharges (PD) caused by micro‐protrusions or surface roughness on conductors or enclosures may not cause immediate insulation system failure due to their weak discharge intensity.
Geng Chen   +4 more
wiley   +1 more source

Review on DC transmission systems for integrating large‐scale offshore wind farms

open access: yesEnergy Conversion and Economics, 2021
The exploitation of offshore wind power has increased rapidly in recent years. To gain more wind power energy, offshore wind farms move farther from onshore.
Zhengxuan Li   +5 more
doaj   +1 more source

Construction and Application of Online Vibration Frequency Response Analysis Method for Converter Transformer Winding

open access: yesHigh Voltage, EarlyView.
ABSTRACT The harmonic current and vibration of a converter transformer are effective pieces of information for detecting mechanical faults in the winding. In this paper, the ratio of vibration acceleration to the current squared is defined as the vibration frequency response function (VFRF) of the winding, and then, a novel online vibration frequency ...
Shuyu Wu, Fan Zhang, Shengchang Ji
wiley   +1 more source

Quality Management System and Maturity Evaluation of Overseas Flexible HVDC Transmission Project

open access: yes发电技术, 2020
There are certain differences between the quality management of overseas flexible HVDC transmission project and domestic engineering quality management. In the management process, it is necessary to establish a correct quality management concept based on
Jiaqi CUI
doaj   +1 more source

HVDC power transmission technology assessment [PDF]

open access: yes, 1997
The purpose of this study was to develop an assessment of the national utility system`s needs for electric transmission during the period 1995-2020 that could be met by future reduced-cost HVDC systems. The assessment was to include an economic evaluation of HVDC as a means for meeting those needs as well as a comparison with competing technologies ...
Hauth, Ronald L.   +5 more
openaire   +2 more sources

Planning of Grid‐Interactive Flexibility Resources Under Carbon‐Emission Constraints

open access: yesIET Smart Energy Systems, EarlyView.
High renewable penetration drives the transition of power system planning; this study finds that carbon pricing promotes photovoltaic expansion, whereas deep decarbonisation necessitates diverse technologies and enhanced cross‐regional transmission. ABSTRACT High renewable penetration and stringent decarbonisation targets are reshaping power system ...
Shichang Cui   +6 more
wiley   +1 more source

Effects of Conditional Changes on High-Voltage Direct Current Transmission Line Characteristic

open access: yesJournal of Electrical and Computer Engineering, 2022
The high-voltage direct current (HVDC) transmission system, which links the Gurun Substation of the National Electric Authority of Malaysia (Tenaga Nasional Berhad, TNB) with the Khlong Ngae Station of the Electricity Generating Authority of Thailand ...
Chaichan Pothisarn   +6 more
doaj   +1 more source

A Call to Industry: Unearthing Synergies in Subsurface Storage Technologies

open access: yesGreenhouse Gases: Science and Technology, EarlyView.
ABSTRACT Subsurface storage technologies (SSTs), including geological CO2 sequestration, underground hydrogen storage, compressed‑air energy storage and thermal energy storage, are emerging as a scalable route for industry to achieve the terawatt‑hour storage flexibility and permanent carbon removal that evolving energy systems demand.
Julien Mouli‐Castillo   +2 more
wiley   +1 more source

Application Analysis of MMC-HVDC AC Tie Line Transmission in New Energy Power Generation

open access: yesJournal of Control Science and Engineering, 2022
In order to solve the problem of new energy power generation, the author proposes an application analysis method based on MMC-HVDC AC tie line transmission in new energy power generation.
Ruijuan Sun, Xiaoyuan Dang, Jiayi Yang
doaj   +1 more source

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