一种小功率组合式航空发电机

先进的飞行控制系统和机载电子系统设备对轻型飞机电源系统的要求越来越高，电源系统的可靠性将直接影响到轻型飞机的安全性。本文提出了一种适用于轻型飞机的小功率组合式航空发电机方案。这种新型的“永磁─—内封闭导磁体”组合发电机既有永磁发电机的体积小、重量轻、无电刷等优点，又有内封闭导磁体发电机电压可调的优点。在发电机体积重量增加不多的情况下，免除了复杂的直流变换器，使电源系统体积最小、重量最轻，并且提高了系统的可靠性。同时采用晶体管脉宽调制激磁控制方式，使电源系统的稳压性得到提高。

A Low-Power Integrated Aircraft Generator

With the development of national economy,light aircraft has widely been used in many fields. The advanced flight control system and aircraft electronic equipments make higher demands on the electrical power system. The reliability of electrical power system will directly affect the safety of light aircraft. A new type of low-power integrated generator suitable for light aircraft is proposed.It combines the advantage of permanent-magnet generator (small size,light weight,brushless)and inductor generator (voltage regulaton). At the expense of increasing a little larger size and weight of the generator,the electrical power system eliminates a complex full power DC convertor,resulting in the least size and weight,and increasing the reliability of the system. The voltage regulation performance of electrical power system is improved by using transistor PWM excitation control method.