TIDUF60 December   2023

 

  1.   1
  2.   Description
  3.   Resources
  4.   Features
  5.   Applications
  6.   6
  7. 1System Description
    1. 1.1 Terminology
    2. 1.2 Key System Specifications
  8. 2System Overview
    1. 2.1 Block Diagram
    2. 2.2 Design Considerations
    3. 2.3 Highlighted Products
      1. 2.3.1 TMS320F2800137
      2. 2.3.2 MSPM0G1507
      3. 2.3.3 TMP6131
      4. 2.3.4 UCC28881
      5. 2.3.5 TPS54202
      6. 2.3.6 TLV9062
      7. 2.3.7 TLV74033
    4. 2.4 System Design Theory
      1. 2.4.1 Hardware Design
        1. 2.4.1.1 Modular Design
        2. 2.4.1.2 High-Voltage Buck Auxiliary Power Supply
        3. 2.4.1.3 DC Link Voltage Sensing
        4. 2.4.1.4 Motor Phase Voltage Sensing
        5. 2.4.1.5 Motor Phase Current Sensing
        6. 2.4.1.6 External Overcurrent Protection
        7. 2.4.1.7 Internal Overcurrent Protection for TMS320F2800F137
      2. 2.4.2 Three-Phase PMSM Drive
        1. 2.4.2.1 Field-Oriented Control of PM Synchronous Motor
          1. 2.4.2.1.1 Space Vector Definition and Projection
            1. 2.4.2.1.1.1 ( a ,   b ) ⇒ ( α , β ) Clarke Transformation
            2. 2.4.2.1.1.2 α , β ⇒ ( d ,   q ) Park Transformation
          2. 2.4.2.1.2 Basic Scheme of FOC for AC Motor
          3. 2.4.2.1.3 Rotor Flux Position
        2. 2.4.2.2 Sensorless Control of PM Synchronous Motor
          1. 2.4.2.2.1 Enhanced Sliding Mode Observer With Phase-Locked Loop
            1. 2.4.2.2.1.1 Mathematical Model and FOC Structure of an IPMSM
            2. 2.4.2.2.1.2 Design of ESMO for the IPMSM
            3. 2.4.2.2.1.3 Rotor Position and Speed Estimation With PLL
        3. 2.4.2.3 Field Weakening (FW) and Maximum Torque Per Ampere (MTPA) Control
        4. 2.4.2.4 Hardware Prerequisites for Motor Drive
          1. 2.4.2.4.1 Motor Current Feedback
            1. 2.4.2.4.1.1 Three-Shunt Current Sensing
            2. 2.4.2.4.1.2 Single-Shunt Current Sensing
          2. 2.4.2.4.2 Motor Voltage Feedback
  9. 3Hardware, Software, Testing Requirements, and Test Results
    1. 3.1 Getting Started Hardware
      1. 3.1.1 Hardware Board Overview
      2. 3.1.2 Test Conditions
      3. 3.1.3 Test Equipment Required for Board Validation
    2. 3.2 Getting Started GUI
      1. 3.2.1 Test Setup
      2. 3.2.2 Overview of GUI Software
      3. 3.2.3 Setup Serial Port
      4. 3.2.4 Motor Identification
      5. 3.2.5 Spin Motor
      6. 3.2.6 Motor Fault Status
      7. 3.2.7 Tune Control Parameters
      8. 3.2.8 Virtual Oscilloscope
    3. 3.3 Getting Started C2000 Firmware
      1. 3.3.1 Download and Install Software Required for Board Test
      2. 3.3.2 Opening Project Inside CCS
      3. 3.3.3 Project Structure
      4. 3.3.4 Test Procedure
        1. 3.3.4.1 Build Level 1: CPU and Board Setup
          1. 3.3.4.1.1 Start CCS and Open Project
          2. 3.3.4.1.2 Build and Load Project
          3. 3.3.4.1.3 Setup Debug Environment Windows
          4. 3.3.4.1.4 Run the Code
        2. 3.3.4.2 Build Level 2: Open-Loop Check With ADC Feedback
          1. 3.3.4.2.1 Start CCS and Open Project
          2. 3.3.4.2.2 Build and Load Project
          3. 3.3.4.2.3 Setup Debug Environment Windows
          4. 3.3.4.2.4 Run the Code
        3. 3.3.4.3 Build Level 3: Closed Current Loop Check
          1. 3.3.4.3.1 Start CCS and Open Project
          2. 3.3.4.3.2 Build and Load Project
          3. 3.3.4.3.3 Setup Debug Environment Windows
          4. 3.3.4.3.4 Run the Code
        4. 3.3.4.4 Build Level 4: Full Motor Drive Control
          1. 3.3.4.4.1 Start CCS and Open Project
          2. 3.3.4.4.2 Build and Load Project
          3. 3.3.4.4.3 Setup Debug Environment Windows
          4. 3.3.4.4.4 Run the Code
          5. 3.3.4.4.5 Tuning Motor Drive FOC Parameters
          6. 3.3.4.4.6 Tuning Field Weakening and MTPA Control Parameters
          7. 3.3.4.4.7 Tuning Current Sensing Parameters
    4. 3.4 Test Results
      1. 3.4.1 Load and Thermal Test
      2. 3.4.2 Overcurrent Protection by External Comparator
      3. 3.4.3 Overcurrent Protection by Internal CMPSS
    5. 3.5 Migrate Firmware to a New Hardware Board
      1. 3.5.1 Configure the PWM, CMPSS, and ADC Modules
      2. 3.5.2 Setup Hardware Board Parameters
      3. 3.5.3 Configure Faults Protection Parameters
      4. 3.5.4 Setup Motor Electrical Parameters
    6. 3.6 Getting Started MSPM0 Firmware
  10. 4Design and Documentation Support
    1. 4.1 Design Files
      1. 4.1.1 Schematics
      2. 4.1.2 Bill of Materials
      3. 4.1.3 PCB Layout Recommendations
      4. 4.1.4 Altium Project
      5. 4.1.5 Gerber Files
    2. 4.2 Software Files
    3. 4.3 Documentation Support
    4. 4.4 Support Resources
    5. 4.5 Trademarks
  11. 5About the Author
3.3.4.1.4 Run the Code

To run the code, complete the following steps:

  1. Run the project by clicking the button GUID-20210205-CA0I-MBHJ-Q1VP-G5KSK6MTBX5D-low.svg, or click Run → Resume in the Debug tab.
  2. In the Expressions window, set the variables motorVars_M1.flagEnableRunAndIdentify to "1" after systemVars.flagEnableSystem was automatically set to "1" in the watch window.
  3. The project can now run, and the values in the graphs and Expressions window can continuously update as shown in Figure 3-25 while using this project. The windows can be resized according to user preference.
  4. In the watch view, the variables motorVars_M1.flagRunIdentAndOnLine can be set to "1" automatically. The ISRCount is increasing continuously.
  5. Check calibration offsets of the motor, the offset value of the motor phase current sensing can be equal to approximately half of the scale current of ADC as shown in Figure 3-25.
  6. Probe the PWM output for motor drive control with an oscilloscope at J15 as shown in Figure 3-23. All of the PWM duty are set to 50% in this build level, the PWM output waveforms are as shown in Figure 3-26. The PWM switching frequency of motor_1 is 15 kHz.
  7. The controller can now be halted, and the debug connection terminated. Fully halt the controller by first clicking the Halt button GUID-20210410-CA0I-9RHS-JH6R-HGGSQQK0HGJ6-low.svgon the toolbar or by clicking Target → Halt. Finally, reset the controller by clicking on GUID-20210205-CA0I-NRZW-VPNN-F3WWKQZJLPHF-low.svg or clicking Run → Reset.
  8. Erase the code in the controller for the next build level by clicking Tools → On-Chip Flash, and click Erase Flash in the On-Chip Flash tab (make sure that all of the flash banks are checked) as shown in Figure 3-27. This operation erases all of the program code stored in flash. (This step is optional, the user can ignore this step to load the new program code in next build level.)
    Note: Do not click Cancel, turn off the power of the board, or disconnect the emulator when erasing flash.
  9. Close the CCS debug session by clicking the Terminate Debug Session button GUID-20210205-CA0I-W5NW-T57Q-LSMG9XLRGNTV-low.svg or clicking Run → Terminate.
GUID-20231110-SS0I-28T4-5TKK-ZT3M0L68BQ9W-low.pngFigure 3-25 Build Level 1: Expressions Window at Run Time
GUID-20231030-SS0I-VDT3-ZC83-5SCVNZ4PQN9Z-low.pngFigure 3-26 Build Level 1: MCU PWM Output and IPM Output
GUID-20210309-CA0I-TSGH-3VCP-WWH7CLJSW2FS-low.svgFigure 3-27 Build Level 1: Erase Program Code in Flash for Next Build Level