| 1. | And we can diagnose the condition of the rotating rectifier with harmonics amplitude
并以此为判据对旋转整流器运行状态进行判别。 |
| 2. | Rotating rectifier brushless generators are one of the important solutions to modern isolated electrical power generating system
采用旋转整流器式无刷交流发电机是现代独立电源系统的重要方案之一。 |
| 3. | Because of canceling slip rings and carbon brushes , it is impossible to measure directly the rotating rectifier ' s current and voltage . so , it is very difficult to monitor and protect the rotating rectifier
但是，取消了滑环和炭刷，旋转整流器的电压和电流不可能直接测量，使其监视与保护十分困难。 |
| 4. | As compared with the simple bp network , this diagnosis result is avoiding getting in local - minimum , more accurately and reliably . it also avoids the omitting and mistakes diagnosis of the rotating rectifier faults
与纯bp神经网络相k腿免bp网络涨陷入的局部极小，诊断结果更力dwh和可靠，有效防止了旋转整流器故障的误判和u 。 |
| 5. | In brushless excitation system , rotating rectifier is likely to occur several faults . but there is not clear linearity relation between the cause of fault and corresponding symptom . and it is difficult to describe their relation with mathematics model
在无刷励磁系统中旋转整流器可能出现各种故障，但故障原因和相应的症状之间往往没有明确的线性关系，也就很难距历g洲精确的数学模型来描述。 |
| 6. | Firstly , the voltage sample signals from ac exciter stator coil were de - noised and filtered by means of decomposition of the wavelet function . secondly , the character frequency region of the rotating rectifier fault was selected clearly with wavelet package decomposition and reconstruction
先对交流励磁机定子磁极线圈电压采样信号进行消噪滤波，再通过小波包分解和重构进行特征频率提取，建立了表征旋转整流器故障的特征向量。 |
| 7. | Wavelet theory has the special ability to express the signal local characters in the time and frequency region . in this paper , the signals of rotating rectifier normal or fault conditions have been analyzed by wavelet transform , and the eigenvector , which includes useful information , has been obtained
小波理论在时域和频域同时具有良好的表征信号局部特征的能力，本文采用小波变换来对各种故障情况下的信号进行分析，提取含有丰富的故障信息作为特征向量。 |
| 8. | This paper theoretically analyses the armature current and magnetomotive force in ac exciter of brushless synchronous machine with rotating rectifier . under the normal or fault conditions of rotating rectifier , the mathematical expressions of the armature current , the m . m . f and induced electromotive force are approached
本文通过对旋转整流器在正常与故障状态下的交流励磁机电枢电流和电枢电势作了初步的理论分析，推导出旋转整流器在正常与故障状态下电枢电流、空间谐波合成磁势及其感应电势的数学表达式。 |
