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| Operation Control Strategy of DFIG Wind Turbine under Non-Ideal Grid Conditions |
| Hu Shuju1,2,Meng Yanfeng1,2,Gong Wenming1,2,Wang Lingling1,2 |
1. Institute of Electrical Engineering Chinese Academy of Sciences Beijing 100190 China
2.Key Lab of Wind Energy Utilization Chinese Academy of Sciences Beijing 100190 China |
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Abstract The proportion of wind power in power grid is increasing,then DFIG wind turbine is necessary to accommodate some non-ideal conditions of grid,such as harmonics,voltage sag. For grid voltage harmonics,a PI+resonant controller is developed to restrain the low-order harmonic components in stator current. For low voltage ride trough (LVRT) capability,the transient process during voltage sags and the influence of Crowbar resistor are analyzed,then the Crowbar resistor value is corrected,and the switch control method of Crowbar circuit is improved. The validity of the proposed control strategies is verified by a DFIG wind turbine simulation system integrated in a power system laboratory of dynamic simulation.
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Received: 18 September 2012
Published: 11 December 2013
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作者简介
胡书举 男,1978年生,博士,副研究员,研究方向为风力发电控制技术。孟岩峰 男,1980年生,助理研究员,研究方向为风力发电控制技术。 |
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2013, Vol. 28 
