某型飞机交流电源系统改造研究

某系列飞机采用了一台变频发电机，为满足该系列飞机改造的要求，研究了采用变速恒频技术将该机的单相变频交流电源改造为恒频三相交流电源的方案。本文介绍了新型交流电源系统的设计方案和主要设计参数，包括总体方案、发电机工作点选取、功率和电磁部件设计、控制器构成和系统的工作逻辑。采用本文方案研制的电源系统作为某型飞机改型验证机的主交流电源得到了实际应用，该电源系统工作稳定可靠，满足了加装电子设备的需求。

Alteration of AC Electrical Power Generating System for a X-Type Aircraft

A variable frequency generator is used for a X-type air craft. By adapting the improving requirements of the fighter, the alteration sch eme of the AC electrical power generating system is researched. The one-phase v ariable frequency AC system is improved in three-phase constant frequency syste m based on the variable speed constant frequency technology. The converter is de signed as the more LRUs type and the LRUs are installed in the frames where the formerly generator voltage regulator and control unit are installed. The design scheme of the new system and the main design parameters include the system struc ture, the operation point of the generator, the design of the power stage and el ectromagnetism part, the composing of the control unit and the system running pr ocess. The developed system based on the scheme is used in an improved aircraft. The new system is reliable and meets the requirements of the enhanced electroni c equipments.