摘要
对励磁机定子励磁电流的谐波特征进行理论分析,分析发现旋转二极管故障时励磁机定子励磁电流将出现不同于正常运行时的谐波分量;进一步在MATLAB/SIMULINK下建立了包括旋转二极管在内的无刷励磁系统的仿真模型,对二极管各种故障下的励磁机定子励磁电流进行了仿真计算,验证了理论分析的正确性。研究表明:依据励磁机定子励磁电流监测分析可对旋转二极管故障进行有效在线监测。
This article first to the exciter excitation current of the stator harmonic characteristics of the theoretical analysis. The results reveal that rotating diode failure will appear different from normal exciter rotor excitation current harmonic component at runtime; further under the MATLAB/SIMULINK is established, including rotating diode simulation model of brushless excitation system, exciter of diode under various fault of the stator exciting current has carried on the simulation computation, verify the correctness of theoretical analysis. Studies have shown that： exciter based on stator field current can be realized for the various fauhs of rotating diode effective on- line monitoring.
出处
《云南电力技术》
2014年第2期92-97,共6页
Yunnan Electric Power
关键词
无刷励磁
旋转整流器
故障
在线监测
brushless exciter, rotating rectifier, fauh, online monitoring
