沈峰;贺仁睦;谢永红;

• 1:电力系统保护与动态安全监控教育部重点实验室(华北电力大学)
• 2:电力系统保护与动态安全监控教育部重点实验室(华北电力大学)
• 3:电力系统保护与动态安全监控教育部重点实验室(华北电力大学) 北京市昌平区102206
• 4:北京市昌平区102206

摘要(Abstract)：

利用Matlab/Simulink搭建了待辨识励磁系统及单机仿真系统模型,分别采用M序列伪随机信号、机端电压阶跃信号及系统扰动作激励,利用遗传算法辨识励磁系统参数。首先利用多窗口法对不同激励信号进行频谱分析,论证了基于实测扰动的励磁系统参数的可辨识性;然后基于同样扰动,分别以不同采样频率及记录时间(数据长度)进行参数辨识,研究信号采样频率及记录时间对参数辨识结果的影响。结果表明采样频率及记录时间互相配合可以得到较好的辨识精度。

关键词(KeyWords)： 励磁系统;系统辨识;信号;功率谱;多窗口法;遗传算法(GA)

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 沈峰;贺仁睦;谢永红;

Email:

DOI:

参考文献(References)：

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