scholarly journals Coordinating fault ride through strategy for connection of offshore wind farms using VSC-HVDC under single polar fault

2019 ◽  
Vol 2019 (16) ◽  
pp. 2670-2676
Author(s):  
Siyang Ge ◽  
Kaipei Liu ◽  
Liang Qin ◽  
Xiaohong Ran ◽  
Gang Li ◽  
...  
Keyword(s):  
Wind Farms ◽  
Offshore Wind ◽  
Offshore Wind Farms ◽  
Fault Ride Through

Advanced Fault Ride-Through Management Scheme for VSC-HVDC Connecting Offshore Wind Farms

2016 ◽  
Vol 31 (6) ◽  
pp. 4923-4934 ◽  
Author(s):  
Ahmed Moawwad ◽  
Mohamed Shawky El Moursi ◽  
Weidong Xiao
Keyword(s):  
Wind Farms ◽  
Offshore Wind ◽  
Offshore Wind Farms ◽  
Management Scheme ◽  
Fault Ride Through

scholarly journals Parameter Estimation of Chopper Resistor in Medium-Voltage-Direct-Current during Grid Fault Ride through

Energies ◽  
2018 ◽  
Vol 11 (12) ◽  
pp. 3480 ◽  
Author(s):  
Hyeong-Jin Lee ◽  
Jin-Su Kim ◽  
Jae-Chul Kim
Keyword(s):  
Parameter Estimation ◽  
Wind Farms ◽  
Offshore Wind ◽  
System Capacity ◽  
Offshore Wind Farms ◽  
Voltage Rise ◽  
Dc Voltage ◽  
Medium Voltage ◽  
Wind Generators ◽  
Fault Ride Through

Offshore wind farms with good wind quality are exponentially increasing. To take advantage of this, the offshore wind farms and the grid are connected using the MVDC. In the event of a grid fault, the traditional wind generators and the MVDC are disconnected from the grid fault to protect the devices. However, the wind generators and the MVDC must support the recovery of the grid fault because the disconnection of large capacity wind farms will cause a grid collapse. To prevent this problem, the LVRT requires maintaining the connection between the wind generators and the grid to contribute to the recovery of the grid fault. In this situation, the DC voltage of the MVDC rises due to the unbalanced power of the input and output. Several methods have been proposed to suppress the DC voltage rise of the MVDC. Among various methods, the CR is an effective method to suppress the DC voltage rise of the wind generators and the MVDC. However, the conventional CR designs only consider rated voltage and system capacity. Therefore, this paper proposes the parameter estimation of the CR considering the important factors. The proposed method is verified by PSCAD/EMTDC.

scholarly journals Efficiency and Fault Ride-Through Performance of a Diode-Rectifier- and VSC-Inverter-Based HVDC Link for Offshore Wind Farms

2013 ◽  
Vol 60 (6) ◽  
pp. 2401-2409 ◽  
Author(s):  
Soledad Bernal-Perez ◽  
Salvador Ano-Villalba ◽  
Ramon Blasco-Gimenez ◽  
Johel Rodriguez-D'Derlee
Keyword(s):  
Wind Farms ◽  
Offshore Wind ◽  
Offshore Wind Farms ◽  
Fault Ride Through

Fault Ride Through and Grid Support Topology for the VSC-HVDC Connected Offshore Wind Farms

2017 ◽  
Vol 32 (3) ◽  
pp. 1592-1604 ◽  
Author(s):  
Aram Kirakosyan ◽  
Mohamed Shawky El Moursi ◽  
Vinod Khadkikar
Keyword(s):  
Wind Farms ◽  
Offshore Wind ◽  
Offshore Wind Farms ◽  
Fault Ride Through

Simulated Onshore-Fault Ride through of Offshore Wind Farms Connected through VSC HVDC

2008 ◽  
Vol 32 (2) ◽  
pp. 103-113 ◽  
Author(s):  
A. Arulampalam ◽  
G. Ramtharan ◽  
N. Caliao ◽  
J.B. Ekanayake ◽  
N. Jenkins
Keyword(s):  
Wind Farm ◽  
Reactive Power ◽  
Wind Farms ◽  
Offshore Wind ◽  
Voltage Source ◽  
Voltage Source Converter ◽  
Offshore Wind Farm ◽  
Offshore Wind Farms ◽  
Grid Connection ◽  
Fault Ride Through

Effective Onshore-Fault Ride Through was demonstrated by simulation for a Fixed Speed Induction Generator (FSIG) offshore wind farm connected through a Voltage Source Converter HVDC link. When a terrestrial grid fault occurs, power through the onshore converter reduces and the DC link voltage increases. A control system was then used to block the offshore converter. The offshore AC network voltage was reduced to achieve rapid power rejection. Reactive power at the onshore converter was controlled to support the AC network voltage according to the GB Grid Code requirements. Two cases, a 200 ms terrestrial fault and a 50% retained voltage fault of duration 710 ms, at the grid connection point were studied. The simulation results show that power blocking at the offshore converter was effective and the DC link voltage was controlled.

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