Results 41 to 50 of about 36,815 (251)

New Stationary Frame Control Scheme for Three Phase PWM Rectifiers Under Unbalanced Voltage Dips Conditions [PDF]

, 2010
A new stationary frame control scheme for three-phase pulsewidth-modulation (PWM) rectifiers operating under unbalanced voltage dips conditions is proposed in this paper.
BOJOI, IUSTIN RADU, Bojoi, R., Limongi, L.R., L. R. LIMONGI, Roiu, Daniel, Tenconi, Alberto   +5 more
core   +1 more source

A Review on Real-Size Epoxy Cast Resin Insulators for Compact High Voltage Direct Current Gas Insulated Switchgears (GIS) and Gas Insulated Transmission Lines (GIL)—Current Achievements and Envisaged Research and Development

Energies, 2020
Due to the ever-increasing demand for electricity in the one hand and the environmental constraints to use clean energy on the other hand, the global production of energy from remote renewable sources, particularly from large hydropower plants and ...
N. Zebouchi, Manu A. Haddad
semanticscholar   +1 more source

Advanced Control Strategies of VSC Based HVDC Transmission System: Issues and Potential Recommendations

IEEE Access, 2018
The converters and their control strategies play an important role in converting, transmitting, and improving the performance of high-voltage direct current (HVDC) system. There are different types of converter and their control strategies being employed
M. A. Hannan, I. Hussin, P. J. Ker, M. M. Hoque, M. S. Hossain Lipu, A. Hussain, M. S. Abd. Rahman, C. W. M. Faizal, F. Blaabjerg   +8 more
doaj   +1 more source

Analysis of Subsynchronous Torsional of Wind–Thermal Bundled System Transmitted via HVDC Based on Signal Injection Method

Energies, 2021
With the development of large-scale new energy, the wind–thermal bundled system transmitted via high-voltage direct current (HVDC) has become the main method to solve the problem of wind power consumption.
Junxi Wang, Qi Jia, Gangui Yan, Kan Liu, Dan Wang   +4 more
doaj   +1 more source

Characteristics of electrostatic discharges between metallic objects in the ion-flow field under HVDC lines

The Journal of Engineering, 2019
Metallic objects under high-voltage direct current (HVDC) transmission lines will produce certain induced voltages due to the charging of ion flow. Electrostatic discharge (ESD) may occur between two objects at different potentials when they are close ...
Xueshan Li, Donglai Wang, Tiebing Lu
doaj   +1 more source

Research on DC Protection Strategy in Multi-Terminal Hybrid HVDC System

Engineering, 2021
Multi-terminal hybrid high-voltage direct current (HVDC) systems have been developed quickly in recent years in power transmission area. However, for voltage-source converter (VSC) stations in hybrid HVDC systems, no direct current (DC) filters are ...
Yuping Zheng, Jiawei He, Bin Li, Tonghua Wu, Wei Dai, Ye Li   +5 more
doaj   +1 more source

A Review of Overcurrent Protection in Smart Grids Under Cyber‐Physical Threats With a Cyber‐Physical Evaluation Framework

Energy Science &Engineering, EarlyView.
By manipulating current and voltage measurements, an assailant can induce unwanted relay action while attempting to avoid detection. Detecting advanced cyber intrusions in power protection environments requires specialised data analysis and anomaly detection methods.
Feras Alasali, Anas AlMajali, Naser Naily, Hassen Loukil, Salah AbuGhalyon, William Holderbaum, Abdelaziz Salah Saidi   +6 more
wiley   +1 more source

Inertia emulation control strategy for VSC-HVDC transmission systems

, 2013
There is concern that the levels of inertia in power systems may decrease in the future, due to increased levels of energy being provided from renewable sources, which typically have little or no inertia.
Roscoe, Andrew, Bright, C.G., Adam, Grain Philip, Zhu, Jiebei, Booth, Campbell   +4 more
core   +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

Reactive power sensitivity-based novel overvoltage suppression strategy for parallel VSC-and-LCC-HVDC transmission system

International Journal of Electrical Power & Energy Systems
The rapid deployment of both line-commutated converter-based high-voltage direct current (LCC-HVDC) and voltage source converter-based high-voltage direct current (VSC-HVDC) does not only prolificate AC/DC grid coupling but also form new DC transmission ...
Yi Hao, Lujie Yu, Chuanjie Nie, Fengdi Li, Heyu Luo   +4 more
doaj   +1 more source