Equivalent Circuit Model of Novel Solid Rotor Induction Motor with Toroidal Winding

Solid rotor induction motor (SRIM) is widely used in many fields due to its sturdy construction, low maintenance costs, and soft mechanical characteristic. A novel SRIM with toroidal winding (N-TWSRIM) is proposed and its equivalent circuit model (ECM) is established herein. The structure of N-TWSRIM is introduced and its operating principle is analyzed according to the movement of armature magnetic field at different times. The main structural parameters of N-TWSRIM are given, an equivalent circuit model is established to analyze performance of motor, and the results of ECM and two-dimension finite element model (FEM) are compared. Finally, to validate the correctness of operating principle and equivalent circuit model, a prototype of N-TWS-RIM has been built and experimented. It shows that the experimental results are consistent with the finite element and analytical results.