CAJ | 학술논문

为研究直驱永磁同步风力发电机（ DPMSG）在电网频率发生变化情况下的暂态特性，建立了电网中风力发电系统数学模型，网侧和机侧变换器分别采用基于电网电压定向和电流前馈补偿的定子磁链定向矢量控制。根据建立的模型仿真分析电网频率下降情况下风机的输出特性进行仿真分析，仿真结果与实测数据对比验证了模型的正确性。利用该模型对电网频率升高时直驱永磁发电机功率、直流电压、转速进行了进一步研究分析，研究结果为分析风电场在电网频率变化期间直驱永磁风力发电系统实际运行、出力变化情况提供了有效依据。
위연구직구영자동보풍력발전궤（ DPMSG）재전망빈솔발생변화정황하적잠태특성，건립료전망중풍력발전계통수학모형，망측화궤측변환기분별채용기우전망전압정향화전류전궤보상적정자자련정향시량공제。근거건립적모형방진분석전망빈솔하강정황하풍궤적수출특성진행방진분석，방진결과여실측수거대비험증료모형적정학성。이용해모형대전망빈솔승고시직구영자발전궤공솔、직류전압、전속진행료진일보연구분석，연구결과위분석풍전장재전망빈솔변화기간직구영자풍력발전계통실제운행、출력변화정황제공료유효의거。
In order to study the transient characteristics of directly driven permanent magnet synchronous generator ( DPMSG) with grid frequency variation , the mathematic model of a wind power generation system is established .The converter in grid side and the converter in machine side adopt stator flux linkage oriented vector control respectively based on grid voltage orien -tation and current feed -forward compensation .The output characteristics of wind turbine are analyzed under the decreases of grid frequency , and the correctness of the established model is verified by the comparison of simulation results with the meas -ured data .Further researches are carried out for the power , DC voltage and rotating speed of directly driven permanent magnet synchronous generator when grid frequency increases by this established model .The presented results provide reference data for output characteristics of DPMSG during grid frequency changes .