High Voltage Ride through Strategy of Wind Farm Considering Generator Terminal Voltage Distribution
When wind power is transmitted via high-voltage direct current (HVDC), the problem of high-voltage ride-through (HVRT), caused by direct-current (DC) blocking must be seriously taken into account. All the wind turbines in a wind farm are usually equivalent to a single turbine in the existing researc...
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doaj-d8ff3823d4a54fedacc426d5dcc260832021-01-30T00:04:36ZengMDPI AGApplied Sciences2076-34172021-01-01111248124810.3390/app11031248High Voltage Ride through Strategy of Wind Farm Considering Generator Terminal Voltage DistributionYanhui Qin0Zeyu Cao1Zhichao Yang2Bingtuan Gao3Xuetao Dong4School of Electrical Engineering, Southeast University, Nanjing 210096, ChinaSchool of Electrical Engineering, Southeast University, Nanjing 210096, ChinaSchool of Electrical Engineering, Southeast University, Nanjing 210096, ChinaSchool of Electrical Engineering, Southeast University, Nanjing 210096, ChinaXinjiang Electric Power Research Institute, Urumqi 830000, ChinaWhen wind power is transmitted via high-voltage direct current (HVDC), the problem of high-voltage ride-through (HVRT), caused by direct-current (DC) blocking must be seriously taken into account. All the wind turbines in a wind farm are usually equivalent to a single turbine in the existing research on HVRT, which ignores the generator terminal voltage distribution in a wind farm. In view of the fact that the severity of fault voltage felt by each wind turbine in the field is different, an improved HVRT strategy considering voltage distribution is proposed in this article. First, this article analyzes the mechanism of voltage swell failure caused by DC blocking, and the characteristics of the generator terminal voltage distribution in wind farms. Second, the reactive power characteristic equations of the synchronous condenser and the doubly-fed induction generator (DFIG) are derived. Third, based on the extraction of the key node voltage, this article takes the key node voltage as the compensation target, and put forwards a HVRT strategy combining the synchronous condenser and wind turbine. Finally, the simulation is carried out to demonstrate the effectiveness of the proposed strategy in improving the HVRT capability of all wind turbines.https://www.mdpi.com/2076-3417/11/3/1248wind power transmissionDC blockingdoubly fed induction generatorsynchronous condenserhigh voltage ride through |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Yanhui Qin Zeyu Cao Zhichao Yang Bingtuan Gao Xuetao Dong |
spellingShingle |
Yanhui Qin Zeyu Cao Zhichao Yang Bingtuan Gao Xuetao Dong High Voltage Ride through Strategy of Wind Farm Considering Generator Terminal Voltage Distribution Applied Sciences wind power transmission DC blocking doubly fed induction generator synchronous condenser high voltage ride through |
author_facet |
Yanhui Qin Zeyu Cao Zhichao Yang Bingtuan Gao Xuetao Dong |
author_sort |
Yanhui Qin |
title |
High Voltage Ride through Strategy of Wind Farm Considering Generator Terminal Voltage Distribution |
title_short |
High Voltage Ride through Strategy of Wind Farm Considering Generator Terminal Voltage Distribution |
title_full |
High Voltage Ride through Strategy of Wind Farm Considering Generator Terminal Voltage Distribution |
title_fullStr |
High Voltage Ride through Strategy of Wind Farm Considering Generator Terminal Voltage Distribution |
title_full_unstemmed |
High Voltage Ride through Strategy of Wind Farm Considering Generator Terminal Voltage Distribution |
title_sort |
high voltage ride through strategy of wind farm considering generator terminal voltage distribution |
publisher |
MDPI AG |
series |
Applied Sciences |
issn |
2076-3417 |
publishDate |
2021-01-01 |
description |
When wind power is transmitted via high-voltage direct current (HVDC), the problem of high-voltage ride-through (HVRT), caused by direct-current (DC) blocking must be seriously taken into account. All the wind turbines in a wind farm are usually equivalent to a single turbine in the existing research on HVRT, which ignores the generator terminal voltage distribution in a wind farm. In view of the fact that the severity of fault voltage felt by each wind turbine in the field is different, an improved HVRT strategy considering voltage distribution is proposed in this article. First, this article analyzes the mechanism of voltage swell failure caused by DC blocking, and the characteristics of the generator terminal voltage distribution in wind farms. Second, the reactive power characteristic equations of the synchronous condenser and the doubly-fed induction generator (DFIG) are derived. Third, based on the extraction of the key node voltage, this article takes the key node voltage as the compensation target, and put forwards a HVRT strategy combining the synchronous condenser and wind turbine. Finally, the simulation is carried out to demonstrate the effectiveness of the proposed strategy in improving the HVRT capability of all wind turbines. |
topic |
wind power transmission DC blocking doubly fed induction generator synchronous condenser high voltage ride through |
url |
https://www.mdpi.com/2076-3417/11/3/1248 |
work_keys_str_mv |
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