JAJU450D November   2015  – March 2020

 

  1.   改訂履歴

3.1.2.3.3.3 Running the Code

  1. Click TIDM-HV-1PH-DCAC icon_RunProjByClicking_TIDUB21.png to run the project.
  2. Raise the input DC bus to 50 V.
  3. Set the AC voltage of the supply connected to the output of the inverter to 20 VRMS and 60 Hz. This supply provided the current to the resistive load connected at the output of the inverter.
  4. Set rlyConnect to 1 to connect the relay.
  5. Set invIoRef to 0.01.
  6. Set clearInvTrip to 1. The inverter provides some current to the resistive load, and the current from the AC power supply drops slightly.
  7. Raise the DC bus to 380 V.

    8. NOTE

    As the inverter is operating at very low power, observe any spikes around the zero crossing. Ignore these spikes for now as they reduce once operating at rated current and voltage. An audible buzz may also be heard.
  8. Increase the output AC voltage to 110 VRMS.
  9. Increase the current command so that more current is provided by the inverter. Increase the step size by 0.01 until approximately 0.07 per unit scaling.
  10. Make sure that the current for the AC source never goes to zero, as many AC sources do not accept four quadrant operation.
  11. Watch for any inadvertent events, such as the DC bus of the inverter input rising, or very high current draw. These events may point to a problem in the setup of the inverter.
  12. Revisit Section 3.1.2.3.1 and Section 3.1.2.3.2 to verify that everything is correct before proceeding.
  13. Observe the current that is shared on the load by the inverter, and the AC source. Spiking around the zero crossing can occur. These spikes may be mitigated by the user by selecting a different inverter configuration, or using a different modulation scheme.
  14. The verification of the grid connected mode of operation is complete.
  15. Disengage the relay setting by setting rlyconnect to zero to stop the inverter.
  16. Reduce the DC bus and the AC source to zero to completely de-energize the hardware setup.
  17. Fully halting the MCU when in real-time mode is a two-step process:
    1. Click the Halt Button on the toolbar, TIDM-HV-1PH-DCAC icon_Toolbar_TIDUB21.png, or use Target → Halt to stop the processor.
    2. Click TIDM-HV-1PH-DCAC icon_EnableSilivonReal-time_Mode_TIDUB21.png to take the MCU out of real-time mode.
  18. Click TIDM-HV-1PH-DCAC icon_MCU_TIDUB21.png to reset the MCU.
  19. Click the Terminate Debug Session button, TIDM-HV-1PH-DCAC icon_TerminateDebugSess_TIDUB21.png, or go to Target → Terminate All to close the CCS debug session.