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This paper presents results of a study concerning operating modes of brushless DC machine (BLDCM) used in the hybrid drive designed for unmanned aerial vehicle (UAV). A mathematical model of the machine and a simulation model of the whole drive system are proposed. Structure of the parallel hybrid drive system is discussed. Results of simulations are presented for three different operation modes provided...
The paper presents an analysis of a brushless dc motor (BLDC) design solution to be used in the hybrid drive for an unmanned aerial vehicle (UAV), where the designed machine can be operated as the combustion engine starter, generator, and motor. Solutions with external rotor are preferred due to necessity of minimization of the machine weight. Relatively low value of the supply voltage requires that...
The paper presents results of simulations and laboratory tests of a switched reluctance motor (SRM) designated to a high-speed drive. As the solution, a two-phase 4/2 motor has been proposed with asymmetric magnetic circuit of the rotor. The asymmetry was introduced intentionally in order to obtain the possibility to start the motor from any rotor position. Starting the motor from various initial...
The paper presents analysis of a 4/2 switched reluctance motor design solution with reduced stator pole-arc. The analyzed model is designed to be used in a high-speed (45,000 rpm) drive. The stator pole-arc value change was accompanied by asymmetric structure of rotor magnetic circuit to allow start the motor from any rotor position. Static characteristics of the designed motor have been determined...
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