Results 81 to 90 of about 17,685 (234)
HVDC for frequency stability under RES penetration. The Sardinia island case
, 2019 High Voltage Direct Current (HVDC) transmission has been increasingly deployed in modern power systems, over long distances in asynchronous interconnections and offshore wind integration, due to lower investment costs, lower losses and higher ...
Vergine C. +5 more
core +2 more sources
Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2018 In this paper, a novel optimal reactive power flow solution approach inmulti-terminal HVDC (High Voltage Direct Current) systems is studied. ULTCs’(under load tap changer transformers) full equivalent model for the DCconverters’ are taken into account in
Faruk Yalçın, Uğur Arifoğlu
doaj +1 more source
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
Research of optimized sorting algorithm of capacitor voltage for MMC
Gong-kuang zidonghua, 2014 The paper researched primary cause of increasing of switching frequency of modular multilevel converter led by traditional capacitor voltage sorting algorithm according to operation principle of the converter. It proposed an improved sorting algorithm of
SONG Pinggang +3 more
doaj +1 more source
Hybrid HVDC for supply of power to offshore oil platforms
, 2004 A HVDC hybrid system, comprising a line commutated thyristor HVDC converter and a STATCOM, is proposed in this paper for supplying power to offshore oil platforms that do not have their own generation. The proposed system combines the robust performance,
Cartwright, P., Andersen, B., Xu, L.
core
Availability Assessment Methods for HVDC Systems: a Review
, 2019 In this paper, an overview of the most effective availability assessment methods, applicable to HVDC (High Voltage Direct Current) transmission systems, is presented.
Sebastian Dambone Sessa +7 more
core +1 more source
The Alternate Arm Converter: A New Hybrid Multilevel Converter With DC-Fault Blocking Capability [PDF]
, 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
Engineering Reports, Volume 8, Issue 6, June 2026.Due to complex wind farm conditions, a coordinated control system was designed. It manages DC power surges during AC faults by temporarily storing excess energy and regulating voltages. This strategy optimizes unbalanced power and enables effective fault recovery, resulting in minimal voltage fluctuations and superior performance.
Lei Chen, Qi Han
wiley +1 more source
Design and Application of an Intelligent Monitoring System in HVDC Valve Hall
南方能源建设, 2019 [Introduction] To overcome some shortcoming such as labor-intensity and inefficient-inspection in manual inspection, which is commonly adopted in the maintenance of the equipment in a HVDC valve hall, a intelligent monitoring system could be established.
LIU Yanhua +3 more
doaj +1 more source
HVDC tie links in smart power grids: A versatile control strategy of VSC converters
, 2021 The forced switching converters are the kernel of the modern paradigm of VSC-HVDC system. It is widely recognized that appropriate control laws make these converters more advantageous than the traditional line commutated ones.
Mottola F. +5 more
core +1 more source