摘要
介绍了辨识理论在发电机励磁系统建模中的应用,并以某电厂的励磁系统为例,通过FFT/LSE和遗传算法两种不同辨识方法,对其参数进行辨识。然后从相位裕度和增益裕度两个方面对辨识结果进行理论分析,最后通过Matlab的仿真结果和现场试验结果的对比来验证辨识结果的有效性和可靠性。
This paper expounds the application of identification theory in generator excitation system parameters testing and illustrates the measurement for the parameters identification of power plant. The parameters satisfying modeling excitation system request can be finally obtained by FFT/LSE and genetic algorithm. Moreover, the result of identification from phase margin and gain margin is analyzed. The identification results of both a simulation system in Mattab and a real excitation system show that the result of identification is able to obtain the accurate parameters of the excitation system.
出处
《电力系统保护与控制》
EI
CSCD
北大核心
2010年第7期52-55,共4页
Power System Protection and Control
基金
甘肃教育厅科研项目资助
关键词
电力系统
励磁系统模型
频域法
遗传算法
power system
excitation system model
frequency domain method
genetic algorithm
