某型组合传动发电机频率调节异常故障分析

Fault analysis of frequency abnormal regulation of the Integrated Drive Generator

组合传动发电机与电压调节器、控制和保护装置、电流互感器等机载设备组成飞机的交流电源系统,保证向机上电路提供电压和频率稳定的三相交流电能。频率是组合传动发电机重要的技术参数,是交流电源系统关键的技术指标,是用电设备正常工作不可缺少的必要条件。在试验过程中,会出现频率调节异常的故障现象。针对此类现象,本文从故障状况、原因分析、定位故障、检查故障源和故障排除几方面进行阐述。

The Integrated Drive Generator,voltage regulator,control and protection device,current transformer and other on-board equipment constitute the AC power supply system of aircraft,which ensures the supply of three-phase AC power with stable voltage and frequency to the on-board circuits.Frequency is an important technical parameter of Integrated Drive Generator,a key technical character of AC power system,and a requirement for normal operation of electrical equipment.Abnormal frequency regulation may happen during testing.In view of this fault,this article illustrates the fault status,analysis of causes,localization of fault,check fault source and troubleshooting and so on.