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
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.
胡书举，孟岩峰，龚文明，王玲玲. 非理想电网条件下双馈式风电机组的运行控制策略[J]. 电工技术学报, 2013, 28(5): 99-104.
Hu Shuju,Meng Yanfeng,Gong Wenming,Wang Lingling. Operation Control Strategy of DFIG Wind Turbine under Non-Ideal Grid Conditions. Transactions of China Electrotechnical Society, 2013, 28(5): 99-104.
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2013, Vol. 28 
