The principle and mathematic model of the Brushless Doubly-Fed Electrical Variable Transmission

In this paper, we are going to introduce a new kind of electrical variable transmission (EVT), which is called Brushless Doubly-Fed Electrical Variable Transmission (BL-DF-EVT). The structures of the BL-DF-EVT are given in detail. And the operational principles in different conditions are discussed. We also established the mathematic model, and the simulation by using Matlab will prove the feasibility of this machine.