电力系统保护与控制
電力繫統保護與控製
전력계통보호여공제
POWER SYSTM PROTECTION AND CONTROL
2013年
13期
104-109
,共6页
李岩松%郭世繁%任国威%刘君
李巖鬆%郭世繁%任國威%劉君
리암송%곽세번%임국위%류군
风力发电系统%双馈发电机%变流器%矢量控制%机电暂态建模
風力髮電繫統%雙饋髮電機%變流器%矢量控製%機電暫態建模
풍력발전계통%쌍궤발전궤%변류기%시량공제%궤전잠태건모
wind power generation system%doubly-fed induction generator%converter%vector control%electromechanical transient model
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。
為瞭準確分析雙饋式風力髮電繫統及其在電網中的運行特性,建立瞭該繫統的機電暫態模型。應用機理建模方法建立瞭風力機、機械轉動裝置和雙饋異步髮電機等雙饋式風力髮電繫統各組件的數學模型和槳距角控製模型。基于電磁暫態模型結閤機電運行特性建立瞭轉子側和網側的變流器控製繫統模型。在此基礎上,在PSASP7.0建模繫統中構建瞭完整的雙饋式風力髮電繫統的UD模型。將該UD模型應用于含雙饋式風力髮電的單機無窮大繫統中,對風速變化和電網故障等情形進行瞭倣真分析,結果錶明所建模型能正確反映繫統的機電暫態特性和運行特性。
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.