FEATURES OF THE INTEGRATED STARTER-GENERATOR OPERATION IN THE GENERATOR MODE AT HIGH EXTERNAL TEMPERATURES

Abstract

In connection with the aircraft electrification, it becomes necessary to provide an electric start of anaircraft engine. At the same time, the electric start of an aircraft engine must be stable under variousflight conditions. Given that one of the key technologies within the concepts of a more electric aircraftand a fully electriашув aircraft is, it is advisable to consider in detail the process of starting anaircraft engine using an integrated starter-generator. In this paper, the fundamentals of the theory ofstarting a bypass turbojet engine using an integrated starter-generator were presented. Starting curvesfor a bypass turbojet engine were given, an expression was obtained for preliminary determinationof the power of an integrated starter-generator in the propulsion mode, power balance equationswere compiled when starting a bypass turbojet engine. It was found that starting a bypass turbojetengine using an integrated starter-generator is a complex multidisciplinary process, which needs tobe further investigated in order to develop approaches to the design of an integrated starter-generatorthat minimize the risks of not being able to start a bypass turbojet engine using an integrated startergenerator.