Nominal Operating Voltage (Vrms LL)

V

Nominal Line-Line voltage of the grid

Rated Apparent Power

VA

The inverter's capacity when expressed in per unit values.

Rated DC Link Voltage

V

The Rated voltage of the DC link when expressed in per unit values and is essential for the dynamic saturation of the current controller.

Output Signal Selection

Select the output reference signal: Inverter Voltage or Duty Ratio.

Current Controller Type

Select the implementation type for the current controller: PI (Proportional Integral) or Custom Transfer Function.

PI Controller Proportional Gain

Proportional gain for the PI current controller, when used.

PI Controller Integral Gain

Integral gain for the PI current controller, when used.

Custom Controller Numerator Coefficients

The custom controller transfer function numerator polynomial coefficients, when used.

Custom Controller Denominator Coefficients

The custom controller transfer function denominator polynomial coefficients, when used.

Output Filter Type

Select the inverter output filter type (L, LC, LCL).

Inverter Side Inductor

H

The value of the inductor corresponding to the inverter side.

Internal Resistance of Inverter Side Inductor

Ohms

The value of internal resistance corresponding to the inverter side inductor.

Grid Side Inductor

H

The value of the inductor corresponding to the grid side.

Internal Resistance of Grid Side Inductor

Ohms

The value of internal resistance corresponding to the grid side inductor.

Islanding Detection Method

Select between General Electric (GE) schemes: none, GE Frequency, GE Voltage, GE Voltage+Frequency.

GE Voltage Scheme Gain

Positive feedback gain in the d current component.

GE Frequency Scheme Gain

Positive feedback gain in the q current component.

Ip

pu

Peak values of the per-phase current components representing the active power.

Iq

pu

Peak values of the per-phase current components representing the reactive power.

Igrid

pu

Three-phase instantaneous current flowing into the grid.

Vdc

pu

DC link voltage.

wt

rad

Voltage phase angle of the grid.

Frequency

Hz

Inverter output voltage frequency.

Vgrid

pu

Instantaneous three-phase grid voltages.

VRTm

Voltage ride-through input to enable momentary cessation (when VTRm = 2, the current reference is set to zero internally).

Reset

Signal used to reset the current controller. When Reset = 1, the controller is reset.

Disable

Signal that controls the output of wave reference block. When Disable = 1, the outputs are forced to 0

Duty Ratio - D

Duty ratio (instantaneous between 0 and 1) reference to control switching converter model through a PWM modulator for each phase.