Abstract The Electrical variable transmission (EVT) is an electromechanical energy conversion device, which structure of inner machine (IM) and outer machine (IM) is concentric distribution. The outer rotor of EVT is the common magnetic circuit of IM and OM, which resulting in the serious magnetic coupling between them. In this paper, the internal magnetic field coupling problem of EVT is studied, which based on induction motor principle. Firstly, the finite element method (FEM) simulation is used to study the distribution discipline of the magnetic coupling and its influence on the inductances. The range of the self- and mutual-inductance of IM and OM is calculated quantitatively. Then, the mathematical model of EVT is deduced, then the winding phase current of IM and OM are simulated and analyzed with reference to the variable inductance parameters model. The variable parameter model is reasonable, which consistent with the expected results. Finally, the correctness of the variable parameter decoupling algorithm is verified by the prototype experiment.
Study on the Magnetic Coupling and Decoupling Algorithm of Electrical Variable Transmission
2017-01-01
10 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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