Аннотация: In this paper, we consider the implementation of electromagnetic excitation in the synchronous generator with the single-tooth winding, intended for use in autonomous power supply systems. The transition to electromagnetic excitation made it possible to abandon expensive semiconductor voltage regulators, which led to a significant simplification and reduction in the cost of the autonomous power supply system. The uniqueness of the work lies in the fact that electric machines with such a combination of electromagnetic excitation and single-tooth winding have not been developed before. The study was carried out on the example of the synchronous generator with the power of 16 kW with the single-tooth winding with excitation from permanent magnets. In the course of the study, the permanent magnets were replaced with poles with an excitation winding, while maintaining the original output parameters of the machine and its geometry.