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对星接自激异步发电机三相不对称稳态运行进行分析计算,重点研究发电机电压变化情况.分析过程以 Z 参数的二端口网络和对称分量法为基础,推导发电机负载端的二端口网络模型及参数,该二端口网络输入端、输出端分别与异步发电机的正、负序等效电路相接合,建立异步发电机不对称稳态运行的等效电路.通过电路方法分析自激异步发电机不对称稳态运行性能,计算过程中实现了两个求解量的解耦.新分析方法通用性强,能大大提高计算速度.针对自激异步发电机带多种不同组合的三相不对称负载进行实验,实验值与计算值吻合好,由此验证了分析方法的有效性和准确度.“,”The steady-state performance of a Y-connected three-phase self-excited induction generator (SEIG) with unbalanced loads was analyzed, which focuses on the voltage variations of the SEIG. Based on the Z-parameter two-port network and the symmetrical component method, a two-port network model at load terminal was derived. By combining two-port network input port and output port, respectively, with positive sequence equivalent circuit and negative sequence equivalent circuit of the induction generator, a novel equivalent circuit model for supplying unbalanced loads was developed. The universally combined equivalent circuit was utilized to analyze asymmetrical steady state performance of a three-phase SEIG, which decoupled two variables and was of less operation time. The calculated values are in agreement with the experimental values for a sampled SEIG, which verifies the validity and accuracy of the presented method.