SPRUJF4 October   2024

 

  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5.   5
  6. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
    5.     General Texas Instruments High Voltage Evaluation (TI HV EVM) User Safety Guidelines
  7. 2Hardware
    1. 2.1 Hardware Description
      1. 2.1.1 Auxiliary Power Supply
      2. 2.1.2 DC Link Voltage Sensing
      3. 2.1.3 Motor Phase Voltage Sensing
      4. 2.1.4 Motor Phase Current Sensing
        1. 2.1.4.1 Three-Shunt Current Sensing
        2. 2.1.4.2 Single-Shunt Current Sensing
      5. 2.1.5 External Overcurrent Protection
      6. 2.1.6 Internal Overcurrent Protection for TMS320F2800F137
    2. 2.2 Getting Started Hardware
      1. 2.2.1 Test Conditions and Equipment
      2. 2.2.2 Test Setup
  8. 3Motor Control Software
    1. 3.1 Three-Phase PMSM Drive System Design Theory
      1. 3.1.1 Field-Oriented Control of PMSM
        1. 3.1.1.1 Space Vector Definition and Projection
          1. 3.1.1.1.1 ( a ,   b ) ⇒ ( α , β ) Clarke Transformation
          2. 3.1.1.1.2 ( α , β ) ⇒ ( d ,   q ) Park Transformation
        2. 3.1.1.2 Basic Scheme of FOC for AC Motor
        3. 3.1.1.3 Rotor Flux Position
      2. 3.1.2 Sensorless Control of PM Synchronous Motor
        1. 3.1.2.1 Enhanced Sliding Mode Observer With Phase-Locked Loop
          1. 3.1.2.1.1 Mathematical Model and FOC Structure of an IPMSM
          2. 3.1.2.1.2 Design of ESMO for the IPMS
            1. 3.1.2.1.2.1 Rotor Position and Speed Estimation With PLL
      3. 3.1.3 Field Weakening (FW) and Maximum Torque Per Ampere (MTPA) Control
    2. 3.2 Getting Started Software
      1. 3.2.1 Download and Install C2000 Software
      2. 3.2.2 Using the Software
      3. 3.2.3 Project Structure
  9. 4Test Procedure and Results
    1. 4.1 Build Level 1: CPU and Board Setup
    2. 4.2 Build Level 2: Open-Loop Check With ADC Feedback
    3. 4.3 Build Level 3: Closed Current Loop Check
    4. 4.4 Build Level 4: Full Motor Drive Control
    5. 4.5 Test Procedure
      1. 4.5.1 Startup
      2. 4.5.2 Build and Load Project
      3. 4.5.3 Setup Debug Environment Windows
      4. 4.5.4 Run the Code
        1. 4.5.4.1 Build Level 1 Test Procedure
        2. 4.5.4.2 Build Level 2 Test Procedure
        3. 4.5.4.3 Build Level 3 Test Procedure
        4. 4.5.4.4 Build Level 4 Test Procedure
          1. 4.5.4.4.1 Tuning Motor Drive FOC Parameters
          2. 4.5.4.4.2 Tuning Field Weakening and MTPA Control Parameters
          3. 4.5.4.4.3 Tuning Current Sensing Parameters
    6. 4.6 Performance Data and Results
      1. 4.6.1 Load and Thermal Test
      2. 4.6.2 Overcurrent Protection by External Comparator
      3. 4.6.3 Overcurrent Protection by Internal CMPSS
  10. 5Hardware Design Files
    1. 5.1 Schematics
    2. 5.2 PCB Layouts
    3. 5.3 Bill of Materials (BOM)
  11. 6Additional Information
    1. 6.1 Known Hardware or Software Issues
    2. 6.2 Trademarks
    3. 6.3 Terminology
  12. 7References

Build Level 4 Test Procedure

  1. Ensure initial steps listed in Section 4.5.4 have been completed.
  2. If the motor identification routine is being utilized, as described in Section 4.5.2, the motor identification routine begins execution immediately upon setting motorVars_M1.flagEnableRunAndIdentify to "1" in the Expressions window. This process takes about 150 seconds.
    1. Once motorVars_M1.flagEnableRunAndIdentify is equal to "0", the motor parameters have been identified. Record the watch window values with the newly-defined motor parameters in user_mtr1.h as follows:
      • USER_MOTOR1_Rs = motorVars_M1.Rs_Ohm’s value
      • USER_MOTOR1_Ls_d = motorVars_M1.Ls_d_H’s value
      • USER_MOTOR1_Ls_q = motorVars_M1.Ls_q_H’s value
      • USER_MOTOR_RATED_FLUX = motorVars_M1.flux_VpHz’s value
    2. Set userParams_M1.flag_bypassMotorId to "true" after successfully identify the motors parameters, rebuild the project and load the code into the controller.
  3. Set the variables motorVars_M1.speedRef_Hz to a different value and watch how the motor shaft speed follows.
  4. To change the acceleration, enter a different acceleration value for the variables motorVars_M1.accelerationMax_Hzps and motorVars_M1.accelerationMax_Hzps.

TIEVM-MTR-HVINV Build Level 4: Expressions
                    Window at Run Time Figure 4-14 Build Level 4: Expressions Window at Run Time
TIEVM-MTR-HVINV Build Level 4: Rotor Angle,
                    Phase Current of Motor Figure 4-15 Build Level 4: Rotor Angle, Phase Current of Motor

After these initial tests, Build Level 4 is also where any other test conditions and tuning are optionally performed.

  1. Section 4.5.4.4.1
  2. Section 4.5.4.4.2
  3. Section 4.5.4.4.3