| 励磁功率单元模型参考故障诊断方法 |
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| 引用本文： | 肖志怀,张诚. 励磁功率单元模型参考故障诊断方法[J]. 水电自动化与大坝监测, 2002, 26(6): 10-13 |
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| 作者姓名： | 肖志怀 张诚 |
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| 作者单位： | 1. 武汉大学动力与机械学院,湖北省武汉市,430072
2. 福建范厝水电站,福建省将乐县,353300 |
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| 摘 要： | 介绍了模型参考故障诊断的基本原理，考虑到同步发电机励磁系统功率单元的非线性特性，为了提高模型的准确性和可观测性，采用分布式物理图网建模方法建立励磁功率单元系统模型，阐述了模型参考诊断方法在励磁系统功率单元的具体应用。仿真结果表明，该方法能够有效地诊断同步发电机励磁系统功率单元的主要故障。
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| 关 键 词： | 励磁 功率单元 故障诊断 仿真 同步发电机 |
| 修稿时间： | 2002-07-21 |
MODEL-BASED FAULT DIAGNOSIS APPROACH FOR POWER UNIT OF EXCITATION CONTROL SYSTEM |
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| Xiao Zhihuai ,Zhang Cheng. MODEL-BASED FAULT DIAGNOSIS APPROACH FOR POWER UNIT OF EXCITATION CONTROL SYSTEM[J]. HYDROPOWER AUTOMATION AND DAM MONITORING, 2002, 26(6): 10-13 |
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| Authors: | Xiao Zhihuai Zhang Cheng |
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| Affiliation: | Xiao Zhihuai 1,Zhang Cheng 2 |
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| Abstract: | The basic principle of model based fault diagnosis is briefly introduced. Considering the nonlinear characteristics of the power unit in the excitation control system of the synchro generator, the distributed physical net modeling method is applied to the improvement of the observability and accuracy of the model. The application of the model based fault diagnosis to the power unit of an excitation control system is described. The simulation result shows that the method can effectively detect typical faults in a power unit of an excitation control system. |
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| Keywords: | excitation power unit model fault diagnosis simulation |
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