Results 41 to 50 of about 8,930,858 (215)
High Voltage, EarlyView.ABSTRACT Damage degradation of epoxy resin insulating materials by free radicals triggered by the ultraviolet irradiation environment at high altitude has become a key issue that restricts the reliability of the bridge arm reactor at high altitude.
Liang Zou +5 more
wiley +1 more source
Power electronics options for large wind farm integration : VSC-based HVDC transmission [PDF]
, 2006 This paper describes the use of voltage source converter based HVDC transmission (VSC transmission) system for grid integration of large wind farms over long distance.
Xu, Lie +8 more
core +1 more source
Evolution of the HVDC Link Connecting Offshore Wind Farms to Onshore Power Systems
Energies, 2020 This paper presents an overview of the DC link development and evolution dedicated to HVDC structure for connecting offshore wind power plants to onshore power systems.
Roland Ryndzionek, Łukasz Sienkiewicz
doaj +1 more source
System Identification of Classic HVDC Systems
SAIEE Africa Research Journal, 2011 Determining models from observations and studying the models' properties is essentially the functionality of science. Models attempt to link observations into some pattern. System identification is the art of building mathematical models of dynamic systems based on observed data from the systems.
L. Chetty, N.M. Ijumba
openaire +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 +5 more
wiley +1 more source
High 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
Small-Signal stability analysis of MMC-HVDC system with saturated transformer
International Journal of Electrical Power & Energy SystemsTransformer saturation has a significant impact on the stability of HVDC systems. While traditional research has primarily focused on LCC-HVDC systems, studies on MMC systems remain limited. Given the anticipated dominance of MMC technology in the future,
Hanwen Wang +6 more
doaj +1 more source
Overview of Frequency-Control Technologies for a VSC-HVDC-Integrated Wind Farm
IEEE Access, 2021 In modern power systems, the increasing penetration of renewable energy resources has reduced the overall system inertia. However, the intermittent nature of wind power generation reduces frequency stability, which is a crucial issue.
Chung-Han Lin, Yuan-Kang Wu
doaj +1 more source
Distributed Controllers for Multiterminal HVDC Transmission Systems [PDF]
IEEE Transactions on Control of Network Systems, 2017 arXiv admin note: substantial text overlap with arXiv:1406.5839, arXiv:1311 ...
Martin Andreasson +3 more
openaire +4 more sources
High 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