Results 21 to 30 of about 22,903,616 (209)

Comparative Analysis of Technical Standards for Offshore Wind Power via VSC-HVDC

open access: yesShanghai Jiaotong Daxue xuebao, 2022
This paper introduces the current situation of domestic and foreign offshore wind power grid-connected via voltage source converter based high voltage direct current(VSC-HVDC) transmission standards, and selects representative standards of offshore wind ...
YU Hao, ZHANG Zhemeng, PENG Sui, ZHANG Zhiqiang, REN Wanxin, LI Canbing
doaj   +1 more source

The Alternate Arm Converter: A New Hybrid Multilevel Converter With DC-Fault Blocking Capability [PDF]

open access: yes, 2013
This paper explains the working principles, supported by simulation results, of a new converter topology intended for HVDC applications, called the alternate arm converter (AAC).
Merlin, Michael MC   +6 more
core   +1 more source

A hybrid multilevel converter for medium and high voltage applications [PDF]

open access: yes, 2010
This paper investigates the suitability of the hybrid multilevel converter for medium and high voltage application. The converter operation, modulation, and capacitor voltage balancing method are described in detail.
Ahmed, Khaled   +4 more
core   +3 more sources

Direct current power system stabilizers for HVDC grids: Current status

open access: yesIET Generation, Transmission & Distribution, 2023
A power system stabilizer (PSS) is a control system integrated into the control structure of specific generation units within AC grids. It monitors current, voltage, and machine shaft speed.
Neda Azizi   +3 more
doaj   +1 more source

High-Voltage Direct Current (HVDC) Transmission: Reliability and applications

open access: yesWorld Journal of Advanced Research and Reviews, 2022
High-Voltage Direct Current (HVDC) transmission has emerged as a transformative technology for long-distance and high-power electrical transmission, addressing the limitations of conventional Alternating Current (AC) transmission systems. HVDC technology is characterized by reduced transmission losses, improved grid stability, and enhanced capability ...
openaire   +1 more source

Minimum Frequency and Voltage Stability Constrained Unit Commitment for AC/DC Transmission Systems

open access: yesApplied Sciences, 2019
An increased use of the high-voltage direct current (HVDC) technologies can have important effects on frequency performance and voltage stability of the receiving-end grid during normal operation as well as during blocking failure.
Ningyu Zhang, Qian Zhou, Haoming Hu
doaj   +1 more source

Dynamic Modeling of HVDC for Power System Stability Assessment: A Review, Issues, and Recommendations

open access: yesEnergies, 2021
High-voltage direct current (HVDC) has received considerable attention due to several advantageous features such as minimum transmission losses, enhanced stability, and control operation.
Tarek Abedin   +7 more
doaj   +1 more source

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

open access: yes, 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.   +5 more
core   +3 more sources

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

open access: yesEnergies, 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   +4 more
doaj   +1 more source

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

open access: yesIEEE 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   +8 more
doaj   +1 more source

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