作　　者： ; (陈斌）;

机构地区： 广东工业大学

出　　处： 《中小型电机》 2000年第5期47-49,共3页

摘　　要： 现代电力系统的发展 ,不断对同步电机的各种动态性能计算提出了新的要求 ,而如何简单有效地测定同步电机参数则是动态计算的关键。通过在抛载试验中引入加权最小二乘参数辨识法 ,处理电枢电压和电枢电流 ,直接得到参数。针对参数辨识的收敛性和多值性问题 ,提出了一些有效的方法 ,如采用动态阻尼因子和动态增益矩阵 ,提高了参数辨识的精度和算法的稳定性。 With the development of modern power system,many new requirements are continuously put forward for various sorts of calculation of dynamic performance of synchronous machine.The simple and effective method to determine parameters of synchronous machine has always been the focus on dynamic calculation.The application of an algorithm based on weighted least squares estimation method measuring and computing parameters of synchronous machine is studied,these parameters can be directly obtained by repeatedly processing the armature voltage and field current data of load rejection tests.Some effective processing methods,e.g using dynamic damping factor and dynamic gain matrix,are presented as to the convergence and multi valuedness of parameter evaluation.The stability of algorithm and precision of parameter evaluation are enhanced.

关 键 词： 同步电机 最小二乘法 参数测量 系统辨识法

领　　域： [电气工程] [理学] [理学]