 This paper proposes a novel approach to solving the problem of successfully launching a mainline diesel locomotive. It involves combining a supercapacitor with a battery to provide sufficient power for the locomotive start-up system. The simulation results demonstrate that this combination is more efficient than using a supercapacitor alone. Furthermore, the booster stabilizer scheme is used to ensure that the locomotive starts up quickly and reliably. This article was authored by Boris V. Malozyimov, Nikita V. Mardyachev, Viktor Alekseevich Kukartsev, and others.