CAJ | 학술논문

　　为了准确分析双馈式风力发电系统及其在电网中的运行特性，建立了该系统的机电暂态模型。应用机理建模方法建立了风力机、机械转动装置和双馈异步发电机等双馈式风力发电系统各组件的数学模型和桨距角控制模型。基于电磁暂态模型结合机电运行特性建立了转子侧和网侧的变流器控制系统模型。在此基础上，在PSASP7.0建模系统中构建了完整的双馈式风力发电系统的UD模型。将该UD模型应用于含双馈式风力发电的单机无穷大系统中，对风速变化和电网故障等情形进行了仿真分析，结果表明所建模型能正确反映系统的机电暂态特性和运行特性。
　　위료준학분석쌍궤식풍력발전계통급기재전망중적운행특성，건립료해계통적궤전잠태모형。응용궤리건모방법건립료풍력궤、궤계전동장치화쌍궤이보발전궤등쌍궤식풍력발전계통각조건적수학모형화장거각공제모형。기우전자잠태모형결합궤전운행특성건립료전자측화망측적변류기공제계통모형。재차기출상，재PSASP7.0건모계통중구건료완정적쌍궤식풍력발전계통적UD모형。장해UD모형응용우함쌍궤식풍력발전적단궤무궁대계통중，대풍속변화화전망고장등정형진행료방진분석，결과표명소건모형능정학반영계통적궤전잠태특성화운행특성。
For analyzing doubly-fed wind power generation system and its operation characteristics in power grid accurately, its electromechanical transient models are developed. The mathematical model and pitch angle control model are established for components of doubly-fed wind power generation system including the wind turbine, mechanical device and doubly-fed induction generator. Based on its electrical-magnetic model, the models of converters control system of rotor and network sides are obtained, considering electromechanical operation characteristics. On this basis, the user defined (UD) models of doubly-fed wind power generation system in PSASP are constructed. The UD models are applied in the single machine infinite bus system for simulation. The results show that the models developed can reflect the transient characteristics of the system.