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UM0324 Datasheet(PDF) 3 Page - STMicroelectronics |
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UM0324 Datasheet(HTML) 3 Page - STMicroelectronics |
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3 / 105 page ![]() UM0324 Contents 3/105 Contents 1 Getting started with tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 1.1 Working environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 1.2 Software tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 1.3 Library source code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 1.3.1 Download . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 1.3.2 File structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 1.3.3 Starting the IAR toolchain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 1.4 Customizing the workspace for your STR750X derivative . . . . . . . . . . . . 13 1.4.1 Inkarm_xxx.xcl file (internal/external flash or RAM based project) 13 1.4.2 Extended linker file setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 2 Getting started with the library . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 2.1 Introduction to AC induction motor FOC drive . . . . . . . . . . . . . . . . . . . . . 16 2.2 How to customize hardware and software parameters . . . . . . . . . . . . . . 17 2.2.1 Library configuration file: 75x_MCconf.h . . . . . . . . . . . . . . . . . . . . . . . 18 2.2.2 Drive control parameters: MC_Control_Param.h . . . . . . . . . . . . . . . . 19 Power device control parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19 Flux and torque PID regulators sampling rate . . . . . . . . . . . . . . . . . . . . . . . . . . .19 Speed regulation loop frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19 Speed controller setpoint and PID constants (initial values) . . . . . . . . . . . . . . . .20 Torque and flux controller setpoints and PID constants . . . . . . . . . . . . . . . . . . . .20 Start-up torque ramp parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21 Linear variation of PID constants according to mechanical speed. . . . . . . . . . . .21 2.2.3 Incremental encoder parameters: MC_encoder_param.h . . . . . . . . . 21 2.2.4 Tachogenerator parameters: MC_tacho_prm.h . . . . . . . . . . . . . . . . . . 21 2.2.5 AC induction motor parameters: MC_ACmotor_param.h . . . . . . . . . . 23 2.3 How to define and add a c module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 3 Running the demo program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 3.1 Open loop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 3.2 Closed loop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 3.3 Setting up the system when using ICS sensors . . . . . . . . . . . . . . . . . . . . 30 3.3.1 Connecting the two ICS sensors to the motor and to STR750 . . . . . . . 31 3.3.2 Selecting PHASE_A_CHANNEL and PHASE_B_CHANNEL . . . . . . . . 31 |
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