The Study Of Doubly Salient Permanent Magnet Motor For Hybrid Electric Vehicle

As the global quantity of vehicles growing up, energy crisis and environment pollution are going to be the choke point of world auto industry. However, the developing Hybrid electric vehicles (HEV) are appearing with great efficiency and low pollution. Because of the "Hybrid", the performance of motor for HEV concerns the performance and fuel economy of HEV directly.Doubly salient permanent magnet motor (DSPM) is a new Electro-mechanic system, which was coming out with the developing of power-electronics and micro-electronics in 1990s. Owning to the advantages, such as simple structure, flexible control, quick response, excellent timing, high efficiency, the research on DSPM has been a quite new trend for HEV motors.According to the requirements of HEV motors' power and torque as well as the new characters of DSPM's structure, in this thesis, it compares and chooses the layouts of DSPM in HEV. It brings forward a method called "divide-overlap" based on the custom method used in motors engineering, and analyses the magnetic field of DSPM theoretically. Moreover, comparing the design of Switched reluctance motors, it works out the structural parameters of the DSPM. It analyses the two-dimensional Finite element of the DSPM's magnetic field by ANSYS. Through the calculation and analysis of the static magnetic field, it elicits the rules of the magnetic field distribution in several typical positions of DSPM's rotor, so it verifies the electromagnetism of the model motor.Finally it gets quite a lot of experiment data by experimenting on the model, and checks out the performance and disadvantages of the model, thus it achieves the purpose on studying and exploring of the DSPM.