Results 71 to 80 of about 6,910 (228)

Engineering practices for the integration of large-scale renewable energy VSC-HVDC systems

Global Energy Interconnection, 2020
With the continuous development of power electronic devices, intelligent control systems, and other technologies, the voltage level and transmission capacity of voltage source converter (VSC)-high-voltage direct current (HVDC) technology will continue to
Yan Li, Hongzhi Liu, Xiaojie Fan, Xinshou Tian   +3 more
doaj   +1 more source

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

Journal 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

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

A VSC transmission system using flying capacitor multilevel converters and selective harmonic elimination pWM control

, 2005
A transmission system based on voltage-source three-level flying capacitor (FC) multilevel converters with selective harmonic elimination pulse-width modulation (SHE-PWM) control is presented in this paper.
Lie Xu, Agelidis, V.G., V.G. Agelidis, Xu, L.   +3 more
core   +1 more source

A Thermal‐Dependent Conductivity Coating for Surface Charge and Electric Field Mitigation Under Electrothermal Coupling Field

High Voltage, EarlyView.
ABSTRACT The problem of gas–solid interface charge accumulation is an important reason for distorting the surface electric field and then inducing surface discharge. The temperature gradient distribution formed on the spacer during the operation of a gas‐insulated transmission line (GIL) will aggravate the surface charge accumulation, further ...
Jianyi Xue, Bowen Xing, Weiming Wang, Jianzhao Sang, Ning Yang, Tao Wen, Lijian Ding   +6 more
wiley   +1 more source

A pan-European-North African HVDC grid for bulk energy transmission - a model-based analysis

, 2022
S.763-767The usage of renewable energy is gaining importance due to national and international targets for reduction of CO2 emissions and consumption of fossil fuels and respective renewable energy deployment goals.
Bohn, Sven, Ragwitz, Mario, Marten, Anne-Katrin, Boie, Inga, Agsten, Michael, Westermann, Dirk   +5 more
core   +1 more source

Recyclable insulation material for HVDC cables in Global Energy Interconnection

Global Energy Interconnection, 2018
With the development of modern power systems, especially that of the global energy internet, high-voltage, direct current (HVDC) cable power transmission will play an important role in the future.
Yao Zhou, Chao Yuan, Qi Li, Qing Wang, Jinliang He   +4 more
doaj   +1 more source

DC Side Impedance Modelling of an Actual Line Commutated Converter High Voltage Direct Current System and DC Resonance Characteristics

High Voltage, EarlyView.
ABSTRACT The stability analysis of Line Commutated Converter High Voltage Direct Current (LCC‐HVDC) is of considerable engineering importance. Establishing its analytical mathematical model helps to analyse stability and the factors that affect stability of the system.
Juanjuan Wang, Juntao Liu, Qingming Xin, Ze Mo, Baixian Ye, Yuekun Liu, Chuang Fu   +6 more
wiley   +1 more source

Assessment of technical and economic elements for HVAC-to-HVDC OHL conversion in Sicilian grid

, 2023
The present paper reports several network analyses and provides technical and economic elements regarding the potential conversion of a transmission line from HVAC (High Voltage Alternating Current) to HVDC (High Voltage Direct Current).
Sessa, Sebastian Dambone, L'Abbate, Angelo, Vitulano, Lorenzo Carmine, Calisti, Roberto, Sanniti, Francesco   +4 more
core   +1 more source

Proposing a Rule for VSC-HVDC Optimal Placement to Improve Transient Stability of Power System [PDF]

International Journal of Research and Technology in Electrical Industry
Transient stability indicates the system's ability to dampen the rotor oscillations of synchronous generators after severe faults. The transient instability causes considerable damage to the generator and reduces the production capacity in the network ...
Ali Abrishami Moghaddam, Alireza Sobbouhi, Abolfazl Vahedi   +2 more
doaj   +1 more source