| Science and technology change with each passing day,the digital signal processors( DSP) technology make developments at full speed over the last more than ten years. The ratio of performance to price of DSP raising constantly,DSP have already begun a large amount of applying in each fields of the national economic life . For meeting the needs of market,the TI Inc. put out special-purpose TMS320F2XX series of DSPs for Automation and Motor Control,and has made enormous success .Regard how to structure the control system of sensorless BLDCM with DSP-TMS320F240 as the centre in this paper,the detailed argumentation course of the motor startup,BEMF terminal voltage measurement and control strategy is given out,give and pay concrete details for the software and hardware realization and experimental result.In order to treat the BLDCM control system with DSP clearly,the full paper divides into six chapters altogether:Chapter one,Introduceing the development course,the structure characteristic and operation principle,etc. of BLDCM in the introduction;Chapter two,Directed against the startup issue of BLDCM,the chapter give and publish the rotor measure pulse orients technology for motor startup in detail;Chapter three,Proceed with mathematics model of the BLDCM,expounding the control schemes;Chapter four,Two important devices introducing:DSP( 240 TMS320F) and power invertor control chip (IR2131S);Chapter five,Give and publish the detail of hardwares of control system;Chapter six,By CCS IDE of TI,realize the control schemes in the front chapters with software,offere the procedure flow chart of main subroutine and some key place of programming,the experiment result in addition. |
PDF Full Text Request