Results 81 to 90 of about 512 (127)

A Hybrid Current Source Converter-Based HVDC System with Power Coordination Control for Enhanced Reactive Power Support

Applied Sciences
HVDC technologies based on fully controlled devices offer numerous technical advantages, such as flexible active and reactive power control and black-start capability, making them highly promising for large-scale renewable energy integration and long ...
Xin Guan, Niancheng Zhou, Yongjie Luo, Luona Xu, Raisz Dávid Márk, Yunfan Wu   +5 more
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Investigation of Leakage Current Behaviour on Artificially Contaminated Insulators Under Superimposed HVDC Voltage Stress and Hybrid HVDC/HVAC Transmission Conditions

Energies
High-voltage direct current (HVDC) transmission systems are increasingly used for long-distance power transmission and the integration of renewable energy sources. In such systems, outdoor insulators are exposed to combined electrical stresses, including
Julian Hanusrichter, Frank Jenau
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Hybrid AC/DC Collection and HVDC Transmission Topology for Large-scale Offshore Wind Farms

CSEE Journal of Power and Energy Systems
Conventional offshore wind integration systems use 33kV or 66kV AC cables to collect wind energy and employ high voltage direct current (HVDC) transmission technology to deliver wind power to onshore grids.
Wang Xiang, Rui Tu, Mingyu Han, Jinyu Wen   +3 more
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Offshore HVDC og Hybrid Transmisjonsnett

Denne oppgaven har utforsket utfordringer knyttet til lovverk, drift, vedlikehold og beredskap ved et offshore hybrid HVDC-anlegg for Statnett SF. Oppgaven undersøker også hvordan anlegget bidrar til å møte FNs bærekraftsmål. Det er gjennomført litteraturstudie, intervjuer, e-postkommunikasjon og telefonsamtaler med TSOer, aktører og fagfolk innenfor ...
Røros, Martin, Gottheim, Steffen Engum, Thomassen, Vegard Mathias, Nilsen, Ulf-Arne Jungård   +3 more
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Design aspects of hybrid HVDC system

CSEE Journal of Power and Energy Systems, 2021
Hong Rao, Yuebin Zhou, Changyue Zou, Shukai Xu, Yan Li, Liu Yang, Weihuang Huang   +6 more
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A Novel Coordinated Control Approach for Commutation Failure Mitigation in Hybrid Parallel-HVDC System with MMC-HVDC and LCC-HVDC

Electric Power Components and Systems, 2017
This paper proposes a novel coordinated control approach for the hybrid parallel-HVDC system that is composed of a line commutated converter-based high-voltage direct current (LCC-HVDC) link and a ...
Chunyi Guo, Chengyong Zhao
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Hybrid simulation for HVDC

2020
Power system transient simulation is an important approach to study the system's dynamic behaviors and guide its daily operation schedule. It can be classified into the following two categories based on the different scales of time step: electromagnetic transient (EMT) simulation and transient stability analysis (TSA). EMT has time step in microseconds,
null Wenchuan Wu, null Yizhong Hu
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Research on hybrid HVDC

2004 International Conference on Power System Technology, 2004. PowerCon 2004., 2005
Based on analysis of the development, technology characteristics and application scope of conventional HVDC and voltage source converter based HVDC (VSC-HVDC), an alternative form of HVDC transmission, named hybrid HVDC, is presented in this paper. At first the fundamental principle and technology characteristics of hybrid HVDC are analyzed, then the ...
null Li Guangkai, null Li Gengyin, null Liang Haifeng, null Yin Ming   +3 more
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A Hybrid Simulation Model for VSC HVDC

IEEE Transactions on Smart Grid, 2016
The motivation for the presented research is based on the needs to develop new methods and tools for obtaining the information required to evaluate the mutual influence of HVDC and HVAC systems. This paper presents the specialized concept of a hybrid simulation for advanced modeling of VSC HVDC.
Yury S. Borovikov, Alexandr S. Gusev, Almaz O. Sulaymanov, Ruslan A. Ufa, Aleksey S. Vasilev, Mikhail V. Andreev, Nikolay Yu. Ruban, Aleksey A. Suvorov   +7 more
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The hybrid model of VSC HVDC

Electrical Engineering, 2019
The trend in semiconductor developments has made the high-voltage direct current (HVDC) technologies based on voltage source converters feasible. This type of convertor has a number of potential advantages compared with “classic” HVDC, but deep analysis should be carried out before its integration in electric power system. In this paper, the results of
Ruslan Ufa, Mikhail Andreev, Nikolay Ruban, Aleksey Suvorov, Alexander Gusev, Igor Razzhivin, Alisher Askarov, Yuly Bay, Anton Kievets, Natalya Lozinova, Olga Suslova   +10 more
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