Permanent Magnet Synchronous Motor Based On Dsp Control Method Study

With the development of high performance permanent-magnet material,electric power and electron technique,large scale integerated circuit and compute technique. Many scholars and researchers of home and oversea have attached importance to permanent-magnet synchronous motor(PMSM) because of its small volume,high power density,high efficiency and power factor. During the development of near twenty years,its manufacture have applied to the fields of industry and agriculture and space technology etc. Then, it has important real significance to research in PMSM and its control method further, The paper mainly study in the control way of PMSM.The main contents and innovations of the paper are as follows:1. Analysis of the configuration and characteristic of PMSM and new research findings of scholars at home and overseas. Study on the three transfers of axes in the theory of PMSM control and list the model of PMSM in the two different coordinate systems . Design of the simulation model and simulate it.2. Analysis of the fundamental principle of SVPWM and DTC and design each simulation model of control system based on them. Study on each characteristic and their difference in the control performance of PMSM.3. Based on the analysis of DTC of PMSM,The paper present two ways to restrain torque ripple which are worked by the selected voltage vector in the transition of the section. Simulation result shows they work well. Study on the the control effect of zero voltage vector in DTC and a modified strategy of DTC of PMSM. The simulation experiment results show that they could restrain torque ripple availably.4. Based on the basic control method,Fuzzy logic control have been used to optimize DTC of PMSM. Design the simulation model of fuzzy logic DTC of PMSM. Simulation result shows fuzzy logic could improve the control performance of DTC effectively.5. Adopt the special chip of TMS320LF2407A to control motor,Design software and hardware circuit of the DTC system of PMSM. This will be a base to study in the future.