Average Value Inverter

Compute three-phase AC voltage from inverter DC voltage

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  • Motor Control Blockset / Electrical Systems / Inverters

Description

The Average Value Inverter block models an average-value and full-wave inverter. It computes the three-phase AC voltage output from inverter DC voltage by using the duty cycle information.

Equations

The following equations describe the computation of the three-phase AC voltage by the block.

D0=(Da+Db+Dc)3

Va=Vdc×(Da−D0)

Vb=Vdc×(Db−D0)

Vc=Vdc×(Dc−D0)

where:

  • Da, Db, and Dc are the modulation indices ranging between 0 and 1.

  • Vdc is the DC bus voltage of the inverter (Volts).

  • Va, Vb, and Vc are the output three-phase voltages (Volts).

Ports

Input

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Normalized duty cycle [0, 1] for the three-phase voltage supply that runs the motor.

Data Types: single | double | fixed point

DC bus voltage input to the inverter.

Data Types: single | double | fixed point | uint8 | uint16 | uint32

Output

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Three-phase voltage (Volts) corresponding to the input duty cycle that runs the motor.

Data Types: single | double | fixed point

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