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Power (Phasor)

Compute active and reactive powers using voltage and current phasors

Library

Control and Measurements/Measurements

Description

The Power (Phasor) block computes the active power P and reactive power Q of a pair of voltage-current signals. P and Q are computed as follows:

I* = complex conjugate of I.

Sign conventions are defined as

Dialog Box and Parameters

The block has no parameters.

Inputs and Outputs

V

The phasor (complex signal) voltage, in volts peak.

I

The phasor (complex signal) current, in amperes peak.

P

Returns the active power, in watts.

Q

Returns the active power, in vars.

Characteristics

Direct FeedthroughYes
DimensionalizedYes

Example

The power_PhasorPowerMeasurementspower_PhasorPowerMeasurements example shows the use of the Power (Phasor) block.

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