140 / 2016-05-03 12:03:40

The Effect Analysis of Single-Double Layers Concentrated Winding on Squirrel Cage Induction Motor

loss,motor,high order harmonics,time stepping finite element method

As the key component of the electromagnetic energy conversion in the motor, the type of winding has an important influence on the high order harmonics and loss. In order to study single-double layers concentrated winding for high order harmonics and loss reduction, taking a 2.2kW squirrel cage induction motor as an example, the analysis model was established based on the time stepping finite element method(T-S FEM), and the variation of air gap flux density of single-double layers concentrated winding and double-layer lap winding is compared and analyzed, pointed out that single-double layers concentrated winding can effectively reduce the high harmonics. Further, on the premise of original starting performance, the variation of stator copper loss, iron loss and rotor copper loss is computed and compared, and the efficiency of motor improved about 3.1%.