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Hybrid Cooling System for HVDC Convertor Valves
Applied Mechanics and Materials, 2014High Voltage Direct Current Transmission (HVDC), known as a future energy "highway", plays a key role in the history of electric power system development. In this paper, the present status and future prospect of HVDC convertor valves cooling system in china is analyzed.
Yu Liang Wen +4 more
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Hybrid Series-connected HVDC System Faults Analysis
2019 4th IEEE Workshop on the Electronic Grid (eGRID), 2019Multi-infeed cascaded hybrid series-connected DC transmission technology combines the advantages of line commutated converters and voltage sourced converters. Hybrid DC transmission is expected to play an important role in future power transmission systems. It is of great importance to understand the system's behavior under steady and transient states.
Bin Chang +5 more
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Hybrid HVDC system for power transmission to island networks
2003 IEEE PES Transmission and Distribution Conference and Exposition (IEEE Cat. No.03CH37495), 2004A hybrid system, comprising a line commutated thyristor HVDC converter and a STATCOM, is proposed in this paper for the connection of networks with no synchronous generation to a main grid. The proposed system combines the robust performance and low capital cost and power loss of a line-commutated HVDC converter, with the fast dynamic performance of a ...
Andersen, B., Xu, L.
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Modeling and simulation analysis of Hybrid Bipolar HVDC system based on LCC-HVDC and VSC-HVDC
2018 IEEE 3rd Advanced Information Technology, Electronic and Automation Control Conference (IAEAC), 2018In recent years, it's mature that the traditional Line Commutated Converter High Voltage Direct Current (LCC-HVDC) in Chinese power system. As power electronic devices become more and more sophisticated and even perfect in practical engineering applications, Voltage Source Converter based on High Voltage Direct Current (VSC-HVDC) has also been applied ...
Shuping Gao +3 more
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Application of Hybrid Multi-terminal HVDC Transmission System
2017 International Conference on Computer Technology, Electronics and Communication (ICCTEC), 2017Hybrid HVDC is a new topology which contains line commutated converter (LCC) and the voltage source converter (VSC). This paper discusses the technical characteristics of flexible HVDC, multi-terminal high-voltage DC (MTDC), and Hybrid HVDC. And it offers an application method of the multi-terminal Hybrid HVDC transmission System, which has large ...
Yi Liu +5 more
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Efficient modeling of hybrid MMCs for HVDC systems
2017 IEEE Energy Conversion Congress and Exposition (ECCE), 2017Modular multilevel converters (MMCs) have become the most promising converter technologies for medium/high-power applications, specifically for high-voltage direct current (HVDC) transmission systems. For the analysis of the large-scale MMCs-embedded power systems, i.e., multiterminal dc (MTDC) systems and dc grids, modeling and simulation plays an ...
Lei Zhang +3 more
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Power control method on VSC-HVDC in a hybrid multi-infeed HVDC system
2012 IEEE Power and Energy Society General Meeting, 2012Multi-infeed HVDC (MIDC) system connected with VSC-HVDC links and LCC-HVDC links is a new structure in modern power systems, which can be called hybrid multi-infeed HVDC (HMIDC) system. The paper presents the voltage stability analysis of a HMIDC system modeled from a possible future Danish power system and proposes a power control method to improve ...
Yan Liu, Zhe Chen
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Research on the Protection of Hybrid HVDC System
2018 International Conference on Power Generation Systems and Renewable Energy Technologies (PGSRET), 2018The traditional and conventional HVDC system has the advantages of lower installing cost and it is a mature state of the art, but it also has some drawbacks like huge reactive power absorption and commutation fault in the system. Similarly, HVDC based on VSC (Voltage Source Converter) is easily operational and flexible in control but it needs high cost
Muhammad Tanveer Riaz +5 more
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Improved controls for LCC-VSC hybrid HVDC system
2013 International conference on Circuits, Controls and Communications (CCUBE), 2013High Voltage Direct Current (HVDC) transmission systems continue to be an excellent asset in modern power systems. The classical HVDC system and VSC-HVDC system showed greater advantages in power transmission and industry. Meanwhile major disadvantages like commutation failure, reactive power requirement in classical system and high cost, high ...
Premila Manohar +3 more
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Reliability evaluation of hybrid multiterminal HVDC subtransmission systems
IEE Proceedings - Generation, Transmission and Distribution, 2002An approach to determining the reliability of a hybrid multiterminal HVDC sub-transmission system is presented. The performance analysis of a multiterminal HVDC subtransmission system is divided into three main segments: the rectifiers, the inverters and the underground cable system.
R. Billinton +2 more
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