Fault Ride-Through Capability Enhancement of VSC HVDC connected Offshore Wind Power Plants

Ranjan Sharma, Qiuwei Wu, Seung-Tae Cha, Kim Høj Jensen, Tonny Wederberg Rasmussen, Jacob Østergaard

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

This paper presents a feed forward direct current (DC) voltage control based fault ride-through (FRT) scheme for voltage source converter (VSC) high voltage DC (HVDC) connected offshore wind power plants (WPPs) in order to achieve active control of the WPP collector network AC voltage magnitude, and to improve the FRT capability. During steady state operation, an open loop AC voltage control is implemented at the WPP side VSC of the HVDC system such that any possible control interactions between the WPP side VSC and the wind turbine VSC are minimized. Whereas during any grid faults, a dynamic AC voltage reference is applied based on both the DC voltage error and the AC active-current from the WPP collector system which ensures fast and robust FRT of the VSC HVDC connected offshore WPPs. Under unbalanced fault conditions in the host power system, the resulting oscillatory DC voltage is directly used into the WPP side VSC AC voltage controller such that the unbalance in the main grid is also reflected at the WPP collector system voltage. Time domain simulations have been carried out to verify the efficacy of the proposed feed forward DC voltage control based FRT scheme. The time domain simulation results have shown satisfactory FRT responses of the VSC HVDC connected offshore WPP under balanced and unbalanced faults in the host power system, and under a severe fault at the WPP collector network.
Original languageEnglish
JournalDianli Xitong Zidonghua/Automation of Electric Power Systems
Volume39
Issue number3
Pages (from-to)14-22
ISSN1000-1026
DOIs
Publication statusPublished - 2015

Keywords

  • Fault ride through
  • Feed forward DC voltage control
  • Offshore wind power
  • VSC HVDC

Cite this

@article{c9c0a1da9d2c4347a9d73cf061d4c33a,
title = "Fault Ride-Through Capability Enhancement of VSC HVDC connected Offshore Wind Power Plants",
abstract = "This paper presents a feed forward direct current (DC) voltage control based fault ride-through (FRT) scheme for voltage source converter (VSC) high voltage DC (HVDC) connected offshore wind power plants (WPPs) in order to achieve active control of the WPP collector network AC voltage magnitude, and to improve the FRT capability. During steady state operation, an open loop AC voltage control is implemented at the WPP side VSC of the HVDC system such that any possible control interactions between the WPP side VSC and the wind turbine VSC are minimized. Whereas during any grid faults, a dynamic AC voltage reference is applied based on both the DC voltage error and the AC active-current from the WPP collector system which ensures fast and robust FRT of the VSC HVDC connected offshore WPPs. Under unbalanced fault conditions in the host power system, the resulting oscillatory DC voltage is directly used into the WPP side VSC AC voltage controller such that the unbalance in the main grid is also reflected at the WPP collector system voltage. Time domain simulations have been carried out to verify the efficacy of the proposed feed forward DC voltage control based FRT scheme. The time domain simulation results have shown satisfactory FRT responses of the VSC HVDC connected offshore WPP under balanced and unbalanced faults in the host power system, and under a severe fault at the WPP collector network.",
keywords = "Fault ride through, Feed forward DC voltage control, Offshore wind power, VSC HVDC",
author = "Ranjan Sharma and Qiuwei Wu and Seung-Tae Cha and Jensen, {Kim H{\o}j} and Rasmussen, {Tonny Wederberg} and Jacob {\O}stergaard",
year = "2015",
doi = "10.7500/aeps20140119001",
language = "English",
volume = "39",
pages = "14--22",
journal = "Dianli Xitong Zidonghua",
issn = "1000-1026",
publisher = "Guowang Dianli Kexue Yanjiuyuan Qikan Zhongxin",
number = "3",

}

Fault Ride-Through Capability Enhancement of VSC HVDC connected Offshore Wind Power Plants. / Sharma, Ranjan; Wu, Qiuwei; Cha, Seung-Tae; Jensen, Kim Høj; Rasmussen, Tonny Wederberg; Østergaard, Jacob.

In: Dianli Xitong Zidonghua/Automation of Electric Power Systems, Vol. 39, No. 3, 2015, p. 14-22.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Fault Ride-Through Capability Enhancement of VSC HVDC connected Offshore Wind Power Plants

AU - Sharma, Ranjan

AU - Wu, Qiuwei

AU - Cha, Seung-Tae

AU - Jensen, Kim Høj

AU - Rasmussen, Tonny Wederberg

AU - Østergaard, Jacob

PY - 2015

Y1 - 2015

N2 - This paper presents a feed forward direct current (DC) voltage control based fault ride-through (FRT) scheme for voltage source converter (VSC) high voltage DC (HVDC) connected offshore wind power plants (WPPs) in order to achieve active control of the WPP collector network AC voltage magnitude, and to improve the FRT capability. During steady state operation, an open loop AC voltage control is implemented at the WPP side VSC of the HVDC system such that any possible control interactions between the WPP side VSC and the wind turbine VSC are minimized. Whereas during any grid faults, a dynamic AC voltage reference is applied based on both the DC voltage error and the AC active-current from the WPP collector system which ensures fast and robust FRT of the VSC HVDC connected offshore WPPs. Under unbalanced fault conditions in the host power system, the resulting oscillatory DC voltage is directly used into the WPP side VSC AC voltage controller such that the unbalance in the main grid is also reflected at the WPP collector system voltage. Time domain simulations have been carried out to verify the efficacy of the proposed feed forward DC voltage control based FRT scheme. The time domain simulation results have shown satisfactory FRT responses of the VSC HVDC connected offshore WPP under balanced and unbalanced faults in the host power system, and under a severe fault at the WPP collector network.

AB - This paper presents a feed forward direct current (DC) voltage control based fault ride-through (FRT) scheme for voltage source converter (VSC) high voltage DC (HVDC) connected offshore wind power plants (WPPs) in order to achieve active control of the WPP collector network AC voltage magnitude, and to improve the FRT capability. During steady state operation, an open loop AC voltage control is implemented at the WPP side VSC of the HVDC system such that any possible control interactions between the WPP side VSC and the wind turbine VSC are minimized. Whereas during any grid faults, a dynamic AC voltage reference is applied based on both the DC voltage error and the AC active-current from the WPP collector system which ensures fast and robust FRT of the VSC HVDC connected offshore WPPs. Under unbalanced fault conditions in the host power system, the resulting oscillatory DC voltage is directly used into the WPP side VSC AC voltage controller such that the unbalance in the main grid is also reflected at the WPP collector system voltage. Time domain simulations have been carried out to verify the efficacy of the proposed feed forward DC voltage control based FRT scheme. The time domain simulation results have shown satisfactory FRT responses of the VSC HVDC connected offshore WPP under balanced and unbalanced faults in the host power system, and under a severe fault at the WPP collector network.

KW - Fault ride through

KW - Feed forward DC voltage control

KW - Offshore wind power

KW - VSC HVDC

U2 - 10.7500/aeps20140119001

DO - 10.7500/aeps20140119001

M3 - Journal article

VL - 39

SP - 14

EP - 22

JO - Dianli Xitong Zidonghua

JF - Dianli Xitong Zidonghua

SN - 1000-1026

IS - 3

ER -