The Adaptive Starter-Generator System for Aircraft

The article presents the starter-generator system of an aircraft based on the cycloconverter with natural commutation. A feature of the system is the use of the cycloconverter with natural commutation as the main converter of electrical energy as part of the starter-generator system. At the same time the cycloconverter with natural commutation allows the starter-generator system to operate both in the mode of generating electrical energy and in the mode of electrical starting of airborne auxiliary power unit or primary motor using a synchronous generator. The scheme of the starter-generator system of the aircraft is proposed. The article presents the result of computer modeling of the studied system. The oscillograms of the output voltage and current of the system under study were obtained. The spectra of the output voltage of the system under study and the current of the cycloconverter are presented when the voltage inverter is connected in parallel. The total harmonic distortion of the output voltage is determined when the voltage inverter is connected in parallel.