双绕组交直流发电机参数的局部辨识  

PRAMETERS PART IDENTIFICATION OF DOUBLE-WINDING AC-DC GENERATORS

作　　者：吴旭升[1] 马伟明[2] 

机构地区：[1]武汉大学电气工程学院,湖北省武汉市430072 [2]海军工程大学电力电子技术研究所,湖北省武汉市430033

出　　处：《中国电机工程学报》2005年第14期135-140,共6页Proceedings of the CSEE

摘　　要：针对双绕组交直流电机参数不易准确测量的问题,提出了同步电机参数的局部辨识方法,利用由常规法能准确得到的部分参数,再根据参数对电机工况的灵敏度分析,来局部的辨识电机参数,有效地解决了辨识算法的不稳定性等问题。用该方法在一台双绕组交直流发电机上辨识出了实际的参数值,利用这些测试值,对电机进行了仿真分析,仿真结果较好地吻合了实际样机的试验结果,验证了辨识算法的有效性。Unlike ordinary three-phase machines,parameters between different three-phase windings must be considered in the double-winding AC-DC generators, which are difficult to be calculated and measured due to the complicated electromagnetic coupling. With the sensitivity analysis of the parameters to different performance, the part estimation algorithm is proposed in this paper. The mutual parameters between stator and rotor windings, the stator parameters and rotor parameters are estimated by different tests.Thus, the number of estimated parameters is reduced and the convergence and the problem of multi-solution are improved.The methods presented am examined on a realistic 3＆12-phase machine and the simulation of the machine was carried out with the parameters measured. The simulation and test results agree quite well, showing that the methods presented are correct.

关 键 词：双绕组交直流发电机 参数 灵敏度 局部辨识 仿真 试验 

分 类 号：TM32[电气工程—电机]