AC Timing System Based On DSP And Simulink

This paper is divided into two parts, one part mainly introduces a new method of voltage space vector and a new type of frequency conversion timing system with a new kind of chip DSP(digital signal processor)-TMS320LF2407A The other one introduces a new method of reducing flux and torque ripples.In the first chapter, the development and application of the technology of speed regulation system in AC motor are introduced. The aim of research and central work is put forward.In the second chapter, high-powered chip of DSP is introduced which is used to control motor. A low price and high-[powered kind of chip-TMS320LF2407A is especially described which is newly produced by the company TI.In the fourth chapter, the main circuit and control circuit are choosed according to performance target. The design course is detailedly introduce, including the design of assistant liner power circuit , main circuit , protective circuit and control circuit.In the fifth chapter, the keystone of Direct Torque Control system is introduced. The simulations about the flux of hexagon and circle are ptesented.Ih the sixth chapter, a new method is presented because of flux and torque ripples. The simulations show the validity of the new method.In the last part, the summarization about the paper is made.