Library

RTE-Drive Measurements

Block

Description

The RTE-Drive ABC-DQ block performs the abc to dq transformation on a set of three-phase signals. It computes the direct axis Vd and quadratic axis Vq quantities in a two-axis rotating reference frame according to the following transformation:

V_d = [ cos(θ) * (2*V_ab+V_bc) + sqrt(3) * V_bc *sin(θ)] / 3

V_q = [ sin(θ) * (2*V_ab+V_bc) - sqrt(3) * V_bc *cos(θ)] / 3

The transformation is the same for the case of a three-phase current; you simply replace the V_a, V_b, V_c, V_d and V_q variables with the I_a, I_b, I_c, I_d, and I_q variables.

Mask

RTE-Drive ABC-DQ Mask

Parameters

N/A.

Input

abc (RTE Double)	Three phases of input voltages (or currents).
θ (Double)	Rotating reference phase θ.

Output

sin, cos (Double)	Sine and cosine of the rotating reference phase.
q,d (Double)	q and d voltage (or current) components.

Characteristics

Direct Feedthrough	Yes
Sample Time	Inherited and fixed discrete.
Work Offline	Yes
Dimensionalized	Yes

Example

N/A.