current and voltage of armature winding and velocity of the rotor. The presented in this paper results of spectral analysis of signals create new possibilities for diagnostics of commutator DC motor.

permanent magnet synchronous motors (PMSMs), and brushless DC motors. Each brings trade-offs in efficiency, cost, and performance. Among the many technologies driving the electric vehicle ...

Abstract: The deep sea oil-filled brushless DC (BLDC) motor operates in an underwater environment. The pressure varies with the working depth. The viscosity of the oil in the motor is sensitive to the ...

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