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Fault Response of a DFIG-based Offshore Wind Power Plant Taking into Account the Wake Effect
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 Title & Authors
Fault Response of a DFIG-based Offshore Wind Power Plant Taking into Account the Wake Effect
Kim, Jinho; Lee, Jinsik; Suh, Yongsug; Lee, Byongjun; Kang, Yong Cheol;
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 Abstract
In order to meet the low voltage ride-through requirement in a grid code, a wind power plant (WPP) has to stay connected to a grid, supporting the voltage recovery for a grid fault. To do this, a plant-level controller as well as a wind generator (WG) controller is essential. The dynamic response of a WPP should be analyzed in order to design a plant-level controller. The dynamic response of a WPP for a grid fault is the collective response of all WGs, which depends on the wind speed approaching the WG. Thus, the dynamic response of a WPP should be analyzed by taking the wake effect into consideration, because different wind speeds at WGs will result in different responses of the WPP. This paper analyzes the response of a doubly fed induction generator (DFIG)-based offshore WPP with a grid fault taking into account the wake effect. To obtain the approaching wind speed of a WG in a WPP, we considered the cumulative impact of multiple shadowing and the effect of the wind direction. The voltage, reactive power, and active power at the point of common coupling of a 100 MW DFIG-based offshore WPP were analyzed during and after a grid fault under various wind and fault conditions using an EMTP-RV simulator. The results clearly demonstrate that not considering the wake effect leads to significantly different results, particularly for the reactive power and active power, which could potentially lead to incorrect conclusions and / or control schemes for a WPP.
 Keywords
DFIG;Voltage control;Wake effect;LVRT requirement;Crowbar and Grid fault;
 Language
English
 Cited by
1.
Hierarchical Voltage Regulation of a DFIG-based Wind Power Plant Using a Reactive Current Injection Loop with the Maximum Voltage Dip for a Grid Fault, The Transactions of The Korean Institute of Electrical Engineers, 2016, 65, 8, 1334  crossref(new windwow)
2.
Adaptive Hierarchical Voltage Control of a DFIG-Based Wind Power Plant for a Grid Fault, IEEE Transactions on Smart Grid, 2016, 7, 6, 2980  crossref(new windwow)
3.
Adaptive Q–V Scheme for the Voltage Control of a DFIG-Based Wind Power Plant, IEEE Transactions on Power Electronics, 2016, 31, 5, 3586  crossref(new windwow)
4.
Transient voltage control of a DFIG-based wind power plant for suppressing overvoltage using a reactive current reduction loop, Journal of International Council on Electrical Engineering, 2016, 6, 1, 140  crossref(new windwow)
5.
Doubly fed induction generator wind turbines: A novel integrated protection circuit for low-voltage ride-through strategy, Journal of Renewable and Sustainable Energy, 2014, 6, 5, 053129  crossref(new windwow)
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