| 多相无刷励磁系统励磁机定子电流谐波特性 |
| |
| 引用本文： | 郝亮亮,王善铭,邱阿瑞,刘为群,吴龙,牟伟.多相无刷励磁系统励磁机定子电流谐波特性[J].清华大学学报(自然科学版),2011(1):58-62. |
| |
| 作者姓名： | 郝亮亮 王善铭 邱阿瑞 刘为群 吴龙 牟伟 |
| |
| 作者单位： | 清华大学电机工程与应用电子技术系电力系统及发电设备控制和仿真国家重点实验室;南京南瑞继保电气有限公司; |
| |
| 摘 要： | 由于无刷励磁旋转整流器与转子一起旋转,整流器的故障无法得到直接的监测,但依据故障在定子励磁绕组中反映的特征来实现监测是一种有效的途径。为此,首先分析了正常运行及旋转整流器一管开路时多相无刷励磁机的电枢电流及其产生的电枢反应磁势,进而得到了2种运行状态下多相无刷励磁机定子电流谐波特性;最后对系统进行了仿真,通过谐波分析得到了励磁机定子电流的谐波特征,仿真结果与理论分析相符。该方法为分析旋转整流器不同运行状态对励磁机定子电流谐波特性的影响奠定了基础,可应用到对多相无刷励磁系统旋转整流器故障诊断的进一步研究中。
|
| 关 键 词： | 无刷励磁系统 旋转整流器 谐波特性 故障诊断 |
Exciter stator current harmonics of multi-phase brushless excitation system |
| |
| HAO Liangliang,WANG Shanming,QIU Arui,LIU Weiqun,WU Long,MU wei.Exciter stator current harmonics of multi-phase brushless excitation system[J].Journal of Tsinghua University(Science and Technology),2011(1):58-62. |
| |
| Authors: | HAO Liangliang WANG Shanming QIU Arui LIU Weiqun WU Long MU wei |
| |
| Institution: | HAO Liangliang1,WANG Shanming1,QIU Arui1,LIU Weiqun2,WU Long2,MU wei2(1.State Key Laboratory of Control and Simulation of Power System and Generation Equipments,Department of Electrical Engineering,Tsinghua University,Beijing 100084,China,2.Nanjing NARI-RELAYS Electric Co,Ltd,Nanjing 211102,China) |
| |
| Abstract: | Rectifier faults in brushless exciter systems are difficult to detect because the rectifier is rotating,while the harmonic characteristics of the stator field winding are more easily measured for fault detection.The fault characteristics of a rotating rectifier in a multi-phase brushless exciter system were determined by predicting the armature current and the magnetic motive force(MMF) for normal and open circuit faults of a single diode.The results were used to describe the harmonic characteristics of the... |
| |
| Keywords: | brushless excitation system rotary rectifier harmonic characteristics fault diagnosis |
| 本文献已被 CNKI 等数据库收录！ |
|
