Results 211 to 220 of about 65,219 (255)
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IEEE Transactions on Power Systems, 2021
Line-commutated converter based high-voltage direct-current (LCC-HVDC) has been extensively applied in power system. LCC-HVDC is prone to continuous commutation failure (CCF), which consequently causes numerous active and reactive impacts, thereby ...
J. Ouyang +5 more
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Line-commutated converter based high-voltage direct-current (LCC-HVDC) has been extensively applied in power system. LCC-HVDC is prone to continuous commutation failure (CCF), which consequently causes numerous active and reactive impacts, thereby ...
J. Ouyang +5 more
semanticscholar +1 more source
Research on Power Modulation Strategy for MMC-HVDC and LCC-HVDC in Parallel HVDC System
2019 IEEE 3rd Conference on Energy Internet and Energy System Integration (EI2), 2019Due to the difference between MMC-HVDC and LCC-HVDC control characteristics and the mutual influence of parallel connection, its power modulation strategy is different from that of LCC-HVDC. Coordinated control strategy of parallel system of MMC-HVDC and LCC-HVDC is analyzed.
Yihua Zhu +5 more
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Impedance Modeling and Analysis of MMC-HVDC for Offshore Wind Farm Integration
IEEE Transactions on Power Delivery, 2020The offshore ac side impedance model of the modular multilevel converter (MMC) based high voltage direct current (HVdc) system is essential for analyzing the interaction stability between MMC-HVdc and the offshore wind power plants.
Ke Ji, G. Tang, Hui Pang, Jie Yang
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Special HVDC controls for TNB/EGAT HVDC interconnection system
Proceedings. International Conference on Power System Technology, 2003The actual controls system of TNB/EGAT HVDC interconnection system is implemented in a high-speed graphically programmable digital control system. This paper describes the features and operations of the controllers by giving a brief description of the pole control functional environment that is employed in the TNB/EGAT HVDC interconnection system. This
A.E. Ariffin +3 more
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Overview of DC–DC Converters Dedicated to HVdc Grids
IEEE Transactions on Power Delivery, 2019HVdc grids are a promising alternative for the expansion of the existing ac grid. They are interesting for the integration of large-scale renewable energy sources, connecting high power offshore windfarms, interconnecting new market areas, including ...
J. Páez +4 more
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IEEE Transactions on Power Delivery, 2021
This paper proposes a new fault location method for transmission lines in MMC-HVDC grids based on dynamic state estimation (DSE) and gradient descent. The method only requires a short data window of 5 ms after the occurrence of the fault and therefore is
Binglin Wang +4 more
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This paper proposes a new fault location method for transmission lines in MMC-HVDC grids based on dynamic state estimation (DSE) and gradient descent. The method only requires a short data window of 5 ms after the occurrence of the fault and therefore is
Binglin Wang +4 more
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HVDC line protection for the proposed future HVDC systems
2004 International Conference on Power System Technology, 2004. PowerCon 2004., 2005The paper reviews the ability of present protection systems to provide adequate protection for proposed future HVDC systems. This initial study reviews current protection systems used for DC line protection and highlights both the advantages and disadvantages of these systems including the factors that adversely influence their performance.
D. Naidoo, N.M. Ijumba
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IEEE transactions on industrial electronics (1982. Print), 2021
Stability analysis of the point-to-point high-voltage dc (HVdc) transmission systems is crucial for planning and operational purposes. However, due to the protection of trade secret and user privacy, it is difficult to have access to detailed information
Haitao Zhang +5 more
semanticscholar +1 more source
Stability analysis of the point-to-point high-voltage dc (HVdc) transmission systems is crucial for planning and operational purposes. However, due to the protection of trade secret and user privacy, it is difficult to have access to detailed information
Haitao Zhang +5 more
semanticscholar +1 more source
IEEE transactions on power electronics, 2019
With proper control methods, grid-connected power converters can mimic the dynamics of conventional synchronous generators (SGs), i.e., acting as virtual synchronous machines (VSMs), for improving the grid frequency stability and ensuring a smooth ...
Linbin Huang, H. Xin, Zhen Wang
semanticscholar +1 more source
With proper control methods, grid-connected power converters can mimic the dynamics of conventional synchronous generators (SGs), i.e., acting as virtual synchronous machines (VSMs), for improving the grid frequency stability and ensuring a smooth ...
Linbin Huang, H. Xin, Zhen Wang
semanticscholar +1 more source
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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