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Analysis of a miniature DC Motor operating on the polarized armature principle
Gallery spotlightMotors & Generators
This application focuses on a simple DC Motor which operates on the polarized armature principle. The motor is analysed using the MagNet Transient 2D with Motion solver. The analysis starts with the rotor stationary and no current in the coils. At t=0 a voltage source is switched on which causes the motor to accelerate gradually.
METHODS and RESULTS
CIRCUIT MODEL
The model of the circuit is easy to create by virtue of the commutator circuit component which automatically handles the position dependent switching of the coils. The connection to the coils is simplified by positioning the rotor to match the sectors in the circuit symbol.
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TORQUE RIPPLE
The torque ripple as a function of time.
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CURRENT in the THIRD COIL
The current in the third coil as a function of time.
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