Permanent Magnetic Brushless Synchronous Motor Design Used In Electric Vehicle Drive Base On Ansoft

As energy use tightly, petroleum rise in price, as well as ecological environment questions are day by day prominent, automobile industry faced with a new challenge. The electric vehicle is a vehicle which takes the battery as a power, used electrical motor drive wheel, and also satisfies the road safety laws. Its development is product with request inevitable to the petroleum crisis and to the environment for the people. In order to advance permanent magnetism synchronous motor to actuate in the electric automobile application, and satisfies the demand of traction in the electric vehicle. A 35kw permanent magnetism synchronous motor (PMSM) was studied and designed in electric vehicle drive.Firstly, in the review of permanent magnetic machine structure characteristics, with the help of the ANSOFT, a finite element commercial software, inductance parameter calculate method was studied in interior permanent magnetic synchronous machine (PMSM). It offered data foundation for the PMSM parameter design. On the basis, with the combination of synchronous machine double reaction theory, a parameter optimization design method was proposed for Power type permanent magnetism synchronous machine.Secondly, from the request of the electrical vehicle engineering for the dive motor, a PMSM was designed by field-road combination method, which, considering on the PMSM characteristic, took proper wind type, polar arc coefficient, electrical and magnetic load.Thirdly, steady state performance of PMSM designed was simulated. The result indicated that PMSM designed meet the demand of electrical vehicle under the different operating conditions. It also shows that below the rated load, because of the parameters were linear, the calculated value fit well with the simulation data, and that operating over the rated load, parameters were saturated, and big errors were formed between simulate and calculation. By the finite element method (FEM), the accurate performance was corrected.Finally the hundred kilometers power consumptions and Driving Range of the electric vehicle was estimated, which show its high economic value.