Results 81 to 90 of about 1,668 (205)

Sequential Impedance Modeling and Stability Assessment of VSC‐HVDC Systems Connecting Offshore PV Power Stations

open access: yesIET Renewable Power Generation, Volume 20, Issue 1, January/December 2026.
This paper addresses the challenge of generating synthetic power grids that achieve visual clarity, structural fidelity, and diversity comparable to real‐world systems. A central innovation lies in our focus on small‐scale grids to optimize visual interpretability.
Jiahua Ni   +4 more
wiley   +1 more source

Optimizing the roles of unit and non-unit protection methods within DC microgrids [PDF]

open access: yes, 2012
The characteristic behavior of physically compact, multiterminal dc networks under electrical fault conditions can produce demanding protection requirements.
Burt, Graeme   +4 more
core   +1 more source

Analysis of Subsequent Commutation Failures Caused by Valve‐Side Single‐Phase‐to‐Ground Faults in Hybrid Cascaded HVDC Systems and Corresponding Suppression Measures

open access: yesIET Renewable Power Generation, Volume 20, Issue 1, January/December 2026.
The valve‐side single‐phase‐to‐ground (SPG) fault represents one of the most critical issues affecting the safe operation of hybrid cascade HVDC systems. This paper studies the mechanism of subsequent commutation failure caused by SPG faults on the MMC valve side in hybrid cascade HVDC systems and proposes a suppression measure.
Tao Zheng, Yuting Xue
wiley   +1 more source

A transient and non-unit-based protection technique for DC grids based on the rate-of-change (R-o-C) of the fault induced travelling wave components [PDF]

open access: yes, 2019
This paper presents a transient and non-unit-based protection scheme for consideration in DC grids of the future. The technique utilises the rate-of-change (R-o-C) of the associated travelling wave components following the occurrence of a fault to ...
Azizi   +24 more
core   +1 more source

Simulation-based Optimisation of LCC-HVDC Controller Parameters using Surrogate Model Solvers [PDF]

open access: yes2019 20th Workshop on Control and Modeling for Power Electronics (COMPEL), 2019
This paper proposes the use of surrogate model optimisation methods to solve box constrained LCC-HVDC controller tuning problems. The tuning problem is the selection of the proportional-integral controller gains and voltage-dependant current order limiter parameters of an LCC-HVDC link subject to two operational scenarios and a set of large-signal ...
Leavy, Aaron S. C.   +3 more
openaire   +1 more source

HVDC Cable System Testing

open access: yesHigh Voltage, Volume 10, Issue 6, Page 1349-1370, December 2025.
ABSTRACT This paper reviews the existing testing techniques for high voltage direct current (HVDC) cable systems, following as a backbone the structure of CIGRE Technical Brochure (TB) 852:2021 ‘Recommendations for testing DC extruded cable systems for power transmission at a rated voltage up to 800 kV’ because it has a fairly similar structure to ...
Giovanni Mazzanti
wiley   +1 more source

Harmonic State Space Based Impedance Modeling and Virtual Impedance Based Stability Enhancement Control for LCC-HVDC Systems

open access: yesJournal of Modern Power Systems and Clean Energy
Line commutated converter based high-voltage direct-current (LCC-HVDC) transmissions are prone to harmonic oscillation under weak grids. Impedance modeling is an effective method for assessing interaction stability.
Yifeng Liu   +7 more
doaj   +1 more source

Subsynchronous Torsional Interaction of Wind Farms with FSIG Wind Turbines Connected to LCC-HVDC Lines

open access: yesEnergies, 2017
High-voltage direct current (HVDC) lines with line-commutated converter (LCC) are being increasingly employed to transmit bulk wind power over long distance.
Benfeng Gao   +4 more
doaj   +1 more source

Harmonic Analysis of Transmission Scheme for Offshore Wind Farms Based on Diode Rectifier Unit

open access: yesEngineering Reports, Volume 7, Issue 10, October 2025.
This paper builds a general mathematical for the multiple rectifier circuit used in DRU, which is based on the 12‐pulse and 24‐pulse rectifier circuits, and analyzes the harmonics of DRU using different rectifier circuits before and after the installation of AC filters by an offshore wind farm integration project. ABSTRACT The diode rectifier unit (DRU)
Qing Chen   +4 more
wiley   +1 more source

Impact of high level of renewable energy penetration on inter-area oscillation [PDF]

open access: yes, 2011
Many research projects have been focused on the impacts of each type of wind turbines on the stability of the power system. Due to the rapid increase in the penetration level of renewable energy and diverse power generation portfolios, it is vital to ...
Eghbal, Mehdi   +2 more
core  

Home - About - Disclaimer - Privacy