CAJ | 학술논문

本文对双馈电机在磁路饱和状态下的运行性能进行研究.通过多项式拟合的方式建立了双馈风电机考虑磁路饱和的非线性数学模型,并以转子侧变换器为研究对象,采用典型的定子磁链定向矢量控制策略对所建立的非线性数学模型的稳态与故障状态的运行情况分别进行仿真,并与在相同条件下采用线性数学模型的仿真结果进行比较分析,结果表明,磁路饱和对双馈风电机的稳态运行性能影响不大,但是对其故障状态的运行性能影响很大,不容忽视.
본문대쌍궤전궤재자로포화상태하적운행성능진행연구.통과다항식의합적방식건립료쌍궤풍전궤고필자로포화적비선성수학모형,병이전자측변환기위연구대상,채용전형적정자자련정향시량공제책략대소건립적비선성수학모형적은태여고장상태적운행정황분별진행방진,병여재상동조건하채용선성수학모형적방진결과진행비교분석,결과표명,자로포화대쌍궤풍전궤적은태운행성능영향불대,단시대기고장상태적운행성능영향흔대,불용홀시.
The operating performances of DFIG considering flux saturation are investigated in this paper. A nonlinear model of DFIG accounting for flux saturation is set up using curve fitting methods. And focusing on the rotor side converter, the stator flux oriented vector control strategy is utilized and the operating performances of the DFIG at steady-state and fault conditions are analyzed and simulated. Simulation results are compared to the linear model at same conditions. Simulation results show that the flux saturation has little influence on the performances of DFIG under steady state conditions, however, it has significant influence on the performances of DFIG under fault conditions.