Results 71 to 80 of about 508 (157)

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
doaj   +1 more source

Modelling and control of a back-to-back MMC–HVDC system using ADPSS

The Journal of Engineering, 2019
Back-to-back modular multilevel converter–high-voltage direct current (MMC–HVDC) can realise the asynchronous interconnection of two regional power grids. It can effectively solve the power grid stability problems caused by AC–DC power transfer and avoid
Pucheng Cai, Wang Xiang, Jinyu Wen
doaj   +1 more source

Technology and engineering application of cross area HVDC interconnection system high-precision simulation modeling based on ADPSS

Global Energy Interconnection, 2018
In recent years, a large number of high voltage direct current (HVDC) transmission projects have been connected to AC systems. This has started to have an impact on AC/DC hybrid power grids, particularly receiving terminal power grids.
Weijie Zheng, Jianfeng Yan, Xujiang Chen, Shuwen Xu, Yalou Li   +4 more
doaj   +1 more source

Study on overvoltage of hybrid LCC-VSC-HVDC transmission

The Journal of Engineering, 2018
Hybrid line commutation converter-voltage-source converter high-voltage direct current transmission (LCC-VSC-HVDC) power transmission has unique technical advantages, but its overvoltage study is not sufficient at present.
Dizhen Xu, Xiaobin Zhao, Yuxin Lu, Kang Qin, Long Guo   +4 more
doaj   +1 more source

Series Hybrid Modular Multilevel Converter for HVDC Transmission Systems

IEEE Access
In this paper, a multilevel Voltage Source Converter for HVDC transmission systems is proposed. The topology is based on a string of full-bridge submodules in addition to an unfolder on the converter’s AC-side. Compared to the modular multilevel converter, it has fewer components and has the advantage that almost two third of the switches ...
Ramiar Alaei, S. Ali Khajehoddin
openaire   +2 more sources

A fault property identification scheme for the restarting of hybrid HVDC system

International Journal of Electrical Power & Energy Systems
The hybrid HVDC system will be widely used in the future. Since transient faults account for the majority of all overhead line faults, the system restart is essential to restoring the power supply of the hybrid HVDC system.
Ke Han, Yu Chen, Minghao Wen, Ruizhi Ma
doaj   +1 more source

Unified Iterative Algorithm for Power Flow of AC/DC System with Multi-Type DC Links

CSEE Journal of Power and Energy Systems
As an emerging trend in power grid development, the AC/DC hybrid power grid presents the characteristics of multi-type DC links and large-scale AC/DC interconnection.
Zhiqiang Song, Yaohui Huang, Jianzhong Xu, Chengyong Zhao, Xiufang Jia, Huashi Zhao   +5 more
doaj   +1 more source

Enhancing electrical and thermal stress capabilities of hybrid CBs in VSC based MT HVDC grids using thyristor based FCL topology. [PDF]

Sci Rep
Khan B, Yousaf MZ, Khalid S, Shakeel MA, Guerrero JM, Sivanraju R.   +5 more
europepmc   +1 more source

Real time frequency and voltage stabilization in multi area hybrid power systems using hybrid MGOAO optimized PID and FOPID controllers. [PDF]

Sci Rep
Abhishek U, Injeti SK, Maineni V, Kumar PP, Nuvvula RSS, Shezan SA, Khan B, Rajkumar S.   +7 more
europepmc   +1 more source

Fault Ride-Through Optimization Scheme for Hybrid AC/DC Transmission Systems on the Same Tower. [PDF]

Sensors (Basel)
Chu X, Liu Q, Fu L, Yu S, Wang W.
europepmc   +1 more source