## VOLTAGE ORIENTED CONTROL – SIMULATION

# ¬ Grid voltage

√

(Line to Line) (Phase to Ground)

√2

(Phase to Ground amplitude)

¬ Minimum DC link voltage The minimum DC link voltage is found with the equation (2.27) of section “2.2.3 Limitations”.

.

This minimum value have been verify in our simulation. In the Simulink simulation, we found a minimum DC link voltage around 660V. Finally, for our simulation we will select

This value is probably a bit low for an experiment. In reality, it will be better to select 15% or 20% more (about 750V or 790V. Refer to “2.2.3 Limitations”).

¬ Inductance value The equation (2.29) of section “2.2.3 Limitations” applied in our system becomes :

3

# As we saw during the voltage controller design, section “3.5.2 Design of voltage controller”

equation (3.18), the d current is calculated by 2

# Then, in steady state we can write the equality of power

(3.62)

# Finally, the current becomes

2

(3.63)

2 3

700

This value is totally verified in the following simulation. We can now calculate the inductance.

3

700 3

We think that this value too high according to results read in some papers. We decided to select the inductance around 3mH (it could be 5mH or 10mH).

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