Results 181 to 190 of about 18,123,397 (208)

Model of a VSC HVDC terminal attached to a weak AC system

Proceedings of 2003 IEEE Conference on Control Applications, 2003. CCA 2003., 2004
This paper presents an analytical non-linear model of the power controlling terminal of a VSC HVDC (Voltage Source Converter High Voltage Direct Current) transmission system attached to a weak (high impedance) AC network. In contrast to the standard 2 state model of a VSC, the proposed model explicitly includes the behaviour of the Phased Locked Loop ...
Durrant, Martyn, Werner, Herbert, Abbott, Keith   +2 more
openaire   +1 more source

Analysis of VSC-HVDC system connected to a weak AC system

2013 Annual IEEE India Conference (INDICON), 2013
Modeling of a VSC-HVDC system is an important step in analyzing the performance of the VSC-HVDC system. In this paper, the modeling details of the converters and the DC transmission line connected to a weak AC system are presented. The weak AC system considered is an island system comprised of synchronous generators and some passive loads.
R. S. Geetha, Ravishankar Deekshit, G. Lal   +2 more
openaire   +1 more source

The Concept and Technical Analysis on Cryogenic VSC-HVDC System

2006 International Conference on Power System Technology, 2006
Cryogenic operation of power converter will result in improved control speed and power handling capability, so a concept and layout of cryogenic VSC-HVDC is proposed to link AC networks. The bipolar coaxial HTS DC cable is described in details. The PWM control strategy based on the change of DC voltages is analyzed.
M. Qiu, Y. Lin, H. Zhao, M. Liu, Y. Zhang, J. Fang, L. Lin, L. Xiao   +7 more
openaire   +1 more source

Modelling and control of VSC-HVDC connected to island systems

IEEE PES General Meeting, 2010
The recently proposed power-synchronization control for grid-connected voltage-source converters (VSCs) has been shown to be a feasible solution for high-voltage dc (HVDC) transmission connected to high-impedance weak ac systems. In this paper, power-synchronization control is investigated for VSC-HVDC connected to another type of weak ac system, i.e.,
null Lidong Zhang, Lennart Harnefors, Hans-Peter Nee   +2 more
openaire   +1 more source

Offshore VSC-HVDC Networks

2017
The transition towards a sustainable society calls for the massive deployment of renewable energy sources such as large wind parks located far offshore. High-voltage direct current transmission based on voltage sourced converter technology (VSC-HVDC) offers a wide range of technological benefits that foster the grid integration of offshore wind parks ...
openaire   +3 more sources

Large-Signal Stability Analysis of DC Side of VSC-HVDC System Based on Estimation of Domain of Attraction

IEEE Transactions on Power Systems, 2022
Jie Cai, Xufeng Yuan, Pengju Sun
exaly  

Study on Start-Up and Operation of VSC-HVDC System

2012
In this paper, a new technology is proposed for HVDC start-up and operation using VSC-HVDC system according to the characteristics of the HVDC and VSC-HVDC system. The new concept of the technology is to start HVDC when it has been shut down due to shortage of AC system voltage source for the commutation.
openaire   +1 more source

Observer and Nonlinear Control Design of VSC-HVDC Transmission System

International Journal of Electrical Power and Energy Systems, 2023
Kissaoui Mohammed, Rachid Lajouad, Ilyass El Myasse   +2 more
exaly  

Overcurrent Suppression Control for Hybrid LCC/VSC Cascaded HVDC System Based on Fuzzy Clustering and Identification Approach

IEEE Transactions on Power Delivery, 2022
Jingxuan Hu, Shuo Yang, Chunyi Guo
exaly  

Sub-Synchronous Oscillation Characteristics and Analysis of Direct-Drive Wind Farms With VSC-HVDC Systems

IEEE Transactions on Sustainable Energy, 2021
Frede Blaabjerg, Yongheng Yang, Bingbing Shao   +2 more
exaly