6533b82dfe1ef96bd1291bdd

RESEARCH PRODUCT

Electromechanical properties of a disc‐type salient‐pole brushless DC motor with different pole numbers

Marian LukaniszynRafal WrobelMariusz Jagieła

subject

PhysicsUniversal motorApplied MathematicsDC motorAC motorField coilSwitched reluctance motorComputer Science ApplicationsComputational Theory and MathematicsControl theoryBrushed DC electric motorElectrical and Electronic EngineeringSynchronous motorInduction motor

description

A brushless, permanent magnet, three‐phase disc‐type salient‐pole DC motor with co‐axial flux in the stator is considered. Electromechanical properties of a basic eight‐pole motor are compared with those for a 16‐pole one of the same volume, in order to contrast the two potential candidates for variable‐speed, low‐cost drives. As a basis of the comparative analysis, 3D FEM magnetic field modelling and circuit analysis considering an electronic commutator are employed. Increasing the number of poles results in unfavourable raising in the switching frequency. The eight‐pole motor construction has been shown in simulations to have higher efficiency and lower power losses than its 16‐pole counterpart.

https://doi.org/10.1108/03321640310459216