Research Of Speed Regulate System Of Three Phase BLDCM Based On DSP

The structure of BLDCM is similar to traditional DC motor,At the same time, it has the advantages of high efficiency and easily adjusting speed of AC motor. It has been widely used.On the basis of the summary for the development and application of permanent magnet brushless DC motor speed-variable system, this thesis introduces a control system, which uses DSP to control the commutation and speed of BLDCM. The basic structure, operational principle and design method of this system are set forth in this thesis. The thought of hardware design and software programming is introduced as well. At last, the experimental results are presented.In the end, I simulate the BLDCM using Matlab/simulink software which proved that the control system works well as it was expected.