Study On Asynchronous Motor With Double Rotor

Asynchronous motor is widely applied, because of its simple structure, easy making, robustness, easy servicing, and convenient use. It accounts for over 85 percent of total electric rotating machinery. Asynchronous motor, which is a primary load of power system, consumes the most national generated energy, about 60 to 70 percent. So designing a new type of motor which can save energy and improve economic benefit has great significance. For this purpose, the paper put forth a new type of motor——asynchronous motor with double rotor.Firstly, this paper introduces the designing idea, basic structure, working principle and characteristics of the asynchronous motor with double rotor. Secondly, considering every part of the motor as a magnetic conductor element, we can get the Magnetic Equivalent Circuit Network Model (MECNM) of asynchronous motor with double rotor by the method of Magnetic Equivalent Circuit, and do analysis and calculation on this model. Thirdly, this paper introduces the method of calculating the electromagnetic field by using finite element method, and it analyzes the distribution of magnetic field in Asynchronous motor with Double Rotor in detail with the help of the software of ANSYS, then the dimension of permanent magnet has been obtained by simulation.Finally, after the experimentation, we can get the parameters of the asynchronous motor with double rotor. And comparing with ordinary asynchronous motor, this new type of motor has higher efficiency and power factor obviously. So it is a kind of ideal asynchronous motor of high efficiency and energy saving.