CAJ | 학술논문

双馈风力发电机（ DFIG）因其具有优良的发电运行性能，在目前的风力发电中得到了广泛地应用。为了研究其不同数学模型在电压跌落故障时的暂态特性，该文以MATLAB／SIMULINK为仿真平台，分别建立了DFIG完整的五阶数学模型及忽略定子磁链暂态变化的三阶模型，在此基础上搭建了相应的风电系统仿真模型，并对风电系统在相同电压跌落幅度时的电磁暂态过程进行了仿真研究。仿真结果表明，DFIG的五阶数学模型在电压跌落时的暂态响应更为清晰和细致，能更精确地表征其在电压跌落时的暂态响应过程。
쌍궤풍력발전궤（ DFIG）인기구유우량적발전운행성능，재목전적풍력발전중득도료엄범지응용。위료연구기불동수학모형재전압질락고장시적잠태특성，해문이MATLAB／SIMULINK위방진평태，분별건립료DFIG완정적오계수학모형급홀략정자자련잠태변화적삼계모형，재차기출상탑건료상응적풍전계통방진모형，병대풍전계통재상동전압질락폭도시적전자잠태과정진행료방진연구。방진결과표명，DFIG적오계수학모형재전압질락시적잠태향응경위청석화세치，능경정학지표정기재전압질락시적잠태향응과정。
DFIG has been widely used in the current wind power generation due to its good operating performance.In order to study the transients characteristics with the different models in the voltage dip, this paper set up the 5th order model and 3th order model which ignored the stator flux linkage transient changes of the DFIG,then built the corresponding wind power system models and simulated the electro-magnetic transient process of the wind power systems based on MATLAB/SIMULINK during the voltage dip.The simulation results show that the 5th order model can provides more clear and detailed transient responses when the voltage drops,it can more accurately characterizes the transient response process un-der the voltage dip faults.