Modified Method for Controlling the Switching of the Starter-Generator Phases

The purpose of this article is to provide an increase in the efficiency of a starter generator (STG) with a reduced supply voltage of 27 V by modifying the phase switching control method. In this article, a comparison of two methods of phase switching, traditional and with a modified angle, was presented, as a result of which the difference and prospects, as well as the effectiveness of the chosen solution, were clearly shown. Thermal calculations were also performed, which confirmed that the temperature values of the active elements of the starter generator did not exceed the permissible values for the materials used in all operating modes.