Power (dq0, Instantaneous)
Three-phase instantaneous active and reactive power.
blockType: SubSystem
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Path in the library: |
Description
Block Power (dq0, Instantaneous) calculates three-phase instantaneous active and reactive power from a periodic set of three-phase voltages and currents expressed in the coordinate system .
Calculations are performed using the following formulas:
The Inputs Vdq0 and Idq0 (straight axis, quadrature axis and zero sequence components) of the three-phase voltage and current are usually connected to the outputs of the conversion unit Park Transform. According to these formulas, the current flowing in the RL circuit creates a positive value P and a positive value Q. The calculated instantaneous reactive power is accurate only for balanced and harmonic-free three-phase voltages and currents.
Ports
Input
#
Vdq0
—
voltage signal expressed in the reference frame
scalar
Details
Voltage signal expressed in the reference frame .
| Data types |
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| Complex numbers support |
No |
#
P
—
three-phase instantaneous active power
scalar
Details
Three-phase instantaneous active power P, in W.
| Data types |
|
| Complex numbers support |
No |
Output
#
Idq0
—
current signal expressed in the reference frame
scalar
Details
Current signal expressed in the reference frame .
| Data types |
|
| Complex numbers support |
No |
#
Q
—
three-phase instantaneous reactive power
scalar
Details
Three-phase instantaneous reactive power Q, in VAR.
| Data types |
|
| Complex numbers support |
No |