Results 31 to 40 of about 691 (181)

Analysis of Deloaded Wind Power in Hybrid AC/HVDC Systems by Frequency Stability Constrained Optimal Power Flow

open access: yesIEEE Access, 2023
This paper investigates the relationship between the frequency support by voltage-source converter based high-voltage direct current (VSC-HVDC) systems and the deloaded wind power operation considering the frequency stability constraints.
Sangwon Kim
doaj   +1 more source

Surge arrester allocation for lightning protection of VSC based HVDC prototype

open access: yesEngineering Science and Technology, an International Journal, 2023
High-voltage direct current (HVDC) systems, based on voltage source converters (VSC), enable asynchronous interconnection of grids with different frequencies and contribute to grid stability by controlling power quickly and precisely.
Ali Burhan Haliloglu, Ires Iskender
doaj   +1 more source

VSC-HVDC for Frequency Support (a review) [PDF]

open access: yes13th IET International Conference on AC and DC Power Transmission (ACDC 2017), 2017
To reduce CO2 emissions produced by electricity generation, conventional fossil fuel power plants are being decommissioned. Renewable energy sources (RES) and interconnectors are replacing these old power plants but have different operating characteristics.
Fradley, John   +2 more
openaire   +1 more source

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

open access: yesHigh 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

Research on protection adaptability and optimization scheme of VSC/LCC DC parallel hybrid system

open access: yesAIP Advances, 2023
With the continuous development of high-voltage direct current (HVDC) technology and the relative concentration of power load and power, the HVDC parallel hybrid system will inevitably appear again.
A. Ting Wang   +5 more
doaj   +1 more source

DC Admittance Model of VSCs for Stability Studies in VSC-HVDC Systems

open access: yesEnergies, 2023
High-voltage direct current (HVDC) systems linked to AC grids with converters are promising energy transmission systems. These systems present complex AC- and DC-side dynamic interactions. Impedance-based stability studies have recently been proposed to assess DC-side dynamics from DC-side characterization of voltage source converters (VSCs ...
Pedra Durán, Joaquim   +2 more
openaire   +4 more sources

Comprehensive Design and Experimental Validation of 30 kV Ultra‐Fast Flexible Controllable Arresters for HVDC Systems

open access: yesHigh Voltage, EarlyView.
ABSTRACT To effectively suppress transient overvoltages in HVDC systems, the design and experimental validation of a multi‐module series controllable arrester are presented. The voltage‐limiting performance, series voltage equalisation capability, and robustness under fault conditions in high‐voltage scenarios require further research.
Tai Yang   +4 more
wiley   +1 more source

Power hardware in the loop validation of fault ride through of VSC HVDC connected offshore wind power plants

open access: yesJournal of Modern Power Systems and Clean Energy, 2014
This paper presents the power hardware in the loop (PHIL) validation of a feed forward DC voltage control scheme for the fault ride through (FRT) of voltage source converter (VSC) high voltage DC (HVDC) connected offshore wind power plants (WPPs). In the
Ranjan Sharma   +5 more
doaj   +1 more source

A Review of Transient Support and Security‐Stability Enhancement Control Strategies for Grid‐Forming Voltage Source Converter‐Based High Voltage Direct Current Transmission

open access: yesHigh Voltage, EarlyView.
ABSTRACT Amid the ongoing global energy transition, the short‐circuit ratios of AC power grids are continuously decreasing. Grid‐forming voltage source converter‐based high voltage direct current transmission (GFM VSC‐HVDC) systems have therefore come to the forefront of attention.
Cheng Peng   +7 more
wiley   +1 more source

Optimization of Wind‐PV Co‐Generation Systems Using Artificial Bee Colony and Back‐to‐Back Voltage Source Converter

open access: yesIET Smart Energy Systems, EarlyView.
The Graphical Abstract depicts the proposed Artificial Bee Colony algorithm‐based optimal tuning of PI controllers for back‐to‐back Voltage Source Converters in a hybrid wind–PV system. ABSTRACT This paper proposes a hybrid model‐based back‐to‐back voltage‐source converter (B2B‐VSC) system comprising a Photovoltaic (PV) array and a Permanent Magnet ...
Ch. Sreenu   +3 more
wiley   +1 more source

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