基于故障字典的旋转整流器故障检测方法

以交流电为主要电源的飞机普遍采用无刷交流发电机作为发电装置，但由于半导体器件抗干扰、抗过载能力差，旋转整流器成为故障发生率较高的部件，文中介绍了利用快速傅里叶变换（FFT）通过对励磁电流的分析来检测可能出现的故障，并利用故障字典快速地判断出故障原因。

Rotating-Rectifier Fault Detecting Method Based on a Fault Dictionary

In aircraft with A. C. power as main source, brushless synchronous a. c. generators are widelyused as generating facility. Since semiconductor is not good at anti-interfering and an and anti-overloadrotating rectifier has a higher fault rate this paper introduces ways to use Fast Fourier Transform (FFT) todetect potential fault by analyzing the excitation current and determining the cause of fault by the use of afault dictionary.