Tool/software:
I am using the F280039C control card along with the 10kW TIDA-01606 E5 version purchased earlier this year.
The user guide mentions:
"Space Vector modulation together with control of the middle point of the DC link capacitors can be used. Notice that the neutral of the grid must be disconnected from the grid. By changing the following user settings parameters, the two new control techniques can be operated:
– #define TINV_THIRD_HARMONIC_INJECTION_STATUS TINV_THIRD_HARMONIC_INJECTION_ENABLE
– #define TINV_MIDDLE_POINT_CONTROL_STATUS TINV_MIDDLE_POINT_CONTROL_ENABLE"
I have a few questions:
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If I enable third harmonic injection and middle point control, does that mean the inverter will switch from SPWM to SVPWM control?
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Can third harmonic injection and middle point control be used independently?
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Following up on question 2, if they can be used independently, do both techniques still require the disconnection of the grid neutral from the power card neutral? If the neutral is disconnected, how will the PLL function operate in that case?
Thank you!
