Research on modeling and several other prospective problems of dual rotor machine

After introduced several common hybrid systems, the article gives out a new hybrid system typology which uses a dual rotor machine as an electrical variable transmission. The article briefly introduces the basic working principles of the machine, then analysis the mathematical model of a novel machine in the outer rotor synchronous reference frame, it gives out the equivalent circuit as well. According to the differences between a novel machine and a real machine, the article gives out the revise method of the mathematical model and equivalent circuit of a real machine. At last, we discuss several prospective problems of this machine.