中文说明：
本文以双馈异步发由机系统为研究对象，根据互联系统阻抗稳定性分析理论，研究了双馈异步电机的输出阻抗建模和并网系统稳定性。
English Description：
Based on the impedance stability analysis theory of interconnected system, this paper studies the output impedance modeling of doubly fed induction generator and the stability of grid connected system.