Models

The example includes these models:

You can use these models for both simulation and code generation. You can use the "open_system" command to open the Simulink® model. For example, use this command for a F28069M based controller:

open_system('mcb_open_loop_control_f28069M_DRV8312.slx');

For the model names that you can use for different hardware configurations, see the Required Hardware topic in the Generate Code and Deploy Model to Target Hardware section.

Required MathWorks® Products

To simulate model:

1. For the models: mcb_open_loop_control_f28069M_DRV8312 and mcb_open_loop_control_f28069MLaunchPad

2. For the model: mcb_open_loop_control_f28379d

To generate code and deploy model:

1. For the models: mcb_open_loop_control_f28069M_DRV8312 and mcb_open_loop_control_f28069MLaunchPad

2. For the model: mcb_open_loop_control_f28379d

Pre-requisites

1. Update the motor parameters in the model initialization script associated with the target models. For instructions to update the script, see Estimate Control Gains from Motor Parameters

2. For BOOSTXL-DRV8323, use these steps to update the model:

3. For BOOSTXL-3PHGANINV, use these steps to update the model:

NOTE: When using BOOSTXL-3PHGANINV inverter, ensure that proper insulation is available between bottom layer of BOOSTXL-3PHGANINV and the LAUNCHXL board.

Simulate Model

This example supports simulation. Follow these steps to simulate the model.

1. Open a model included with this example.

2. Click Run in the Simulation tab to simulate the model.

3. Click Data Inspector in the Simulation tab to view and analyze the simulation results.

Generate Code and Deploy Model to Target Hardware

This section instructs you to generate code and run the motor by using open-loop control.

The example uses a host and a target model. The host model is a user interface to the controller hardware board. You can run the host model on the host computer. The pre requisite to use the host model is to deploy the target model to the controller hardware board. The host model uses serial communication to command the target Simulink® model and run the motor in a closed-loop control.

Required Hardware

This example supports these hardware configurations. Use the target model name (highlighted in bold) to open the model for the corresponding hardware configuration, from the MATLAB® command prompt.

For connections related to the preceding hardware configuration, see F28069 control card configuration.

For connections related to the preceding hardware configurations, see LAUNCHXL-F28069M and LAUNCHXL-F28379D configurations.

NOTE:

1. Navigate to this path in the model: /Open Loop Control/Control_System/VabcCalc/.

2. Update the gain "Correction_Factor_sinePWM" as 20%.

3. For safety reasons, regularly monitor the motor shaft, motor current, and motor temperature.

Generate Code and Run Model to Implement Open-loop Control

1. Simulate the target model and observe the simulation results.

2. Complete the hardware connections.

3. Open the target model for the hardware configuration that you want to use. If you want to change the default hardware configuration settings for the target model, see Model Configuration Parameters.

4. Load a sample program to CPU2 of LAUNCHXL-F28379D, for example, program that operates the CPU2 blue LED by using GPIO31 (c28379D_cpu2_blink.slx), to ensure that CPU2 is not mistakenly configured to use the board peripherals intended for CPU1.

5. Click Build, Deploy & Start in the Hardware tab to deploy the target model to the hardware.

NOTE: Ignore the warning message "Multitask data store option in the Diagnostics page of the Configuration Parameter Dialog is none" displayed by the model advisor, by clicking the Always Ignore button. This is part of the intended workflow.

6. Click the host model hyperlink in the target model to open the associated host model. You can also use the "open_system" command to open the host model. For example, use this command for a F28069M based controller:

open_system('mcb_open_loop_control_host_model.slx');

For details about the serial communication between the host and target models, see Communication between Host and Target.

7. In the Host Serial Setup block mask of the host model, select a Port name.

8. Click Run in the Simulation tab to run the host model.

9. Change the Start / Stop Motor switch position to On, to start running the motor.

10. After the motor runs, observe the ADC counts for the and currents in the Time Scope.

If the motor does not run, change the Start / Stop Motor switch position to Off, to stop the motor and change the Reference Speed in the host model. Afterwards, change the Start / Stop Motor switch position to On, to run the motor again.

Generate Code and Run Model to Calibrate ADC Offset

1. Simulate the target model and observe the simulation results.

2. Complete the hardware connections.

3. Disconnect the motor wires for three phases, from the hardware board terminals.

4. Open the target model for the hardware configuration that you want to use. If you want to change the default hardware configuration settings for the target model, see Model Configuration Parameters.

5. Load a sample program to CPU2 of LAUNCHXL-F28379D (for example, program that operates the CPU2 blue LED using GPIO31) to ensure that CPU2 is not mistakenly configured to use the board peripherals intended for CPU1.

6. Click Build, Deploy & Start in the Hardware tab to deploy the target model to the hardware.

NOTE: Ignore the warning message "Multitask data store option in the Diagnostics page of the Configuration Parameter Dialog is none" displayed by the model advisor, by clicking the Always Ignore button. This is part of the intended workflow.

7. Click the host model hyperlink in the target model to open the associated host model.

8. In the Host Serial Setup block mask of the host model, select a Port name.

9. Click Run in the Simulation tab to run the host model.

10. Observe the ADC counts for the and currents in the Time Scope. The average values of the ADC counts are the ADC offset corrections for the currents and . You can use these steps to obtain the average (median) values of ADC counts: * In the Scope window, navigate to Tools > Measurements, and select the Signal Statistics option to display the Trace Selection and Signal Statistics areas.

For the Motor Control Blockset examples, update the computed ADC (or current) offset value in the inverter.CtSensAOffset and inverter.CtSensBOffset variables in the model initialization script linked to the example. For instructions to update the script, see Estimate Control Gains from Motor Parameters.