ABC to Alpha-Beta-Gamma Transform VI

Owning Palette: Transform VIs

Requires: Electrical Power Toolkit

Transforms signals from the ABC reference frame to the alpha-beta-gamma reference frame. You must manually select the polymorphic instance you want to use.

Details  Example

ABC to Alpha-Beta-Gamma Transform (Magnitude Invariant)

	A specifies the signal of A. t0 specifies the start time of the waveform. dt specifies the time interval, in seconds, between data points in the waveform. Y specifies the data values of the waveform.
	B specifies the signal of B. t0 specifies the start time of the waveform. dt specifies the time interval, in seconds, between data points in the waveform. Y specifies the data values of the waveform.
	C specifies the signal of C. t0 specifies the start time of the waveform. dt specifies the time interval, in seconds, between data points in the waveform. Y specifies the data values of the waveform.
	error in describes error conditions that occur before this node runs. This input provides standard error in functionality.
	alpha returns the signal of alpha. t0 returns the start time of the waveform. dt returns the time interval, in seconds, between data points in the waveform. Y returns the data values of the waveform.
	beta returns the signal of beta. t0 returns the start time of the waveform. dt returns the time interval, in seconds, between data points in the waveform. Y returns the data values of the waveform.
	gamma returns the signal of gamma. t0 returns the start time of the waveform. dt returns the time interval, in seconds, between data points in the waveform. Y returns the data values of the waveform.
	error out contains error information. This output provides standard error out functionality.

ABC to Alpha-Beta-Gamma Transform (Power Invariant)

	A specifies the signal of A. t0 specifies the start time of the waveform. dt specifies the time interval, in seconds, between data points in the waveform. Y specifies the data values of the waveform.
	B specifies the signal of B. t0 specifies the start time of the waveform. dt specifies the time interval, in seconds, between data points in the waveform. Y specifies the data values of the waveform.
	C specifies the signal of C. t0 specifies the start time of the waveform. dt specifies the time interval, in seconds, between data points in the waveform. Y specifies the data values of the waveform.
	error in describes error conditions that occur before this node runs. This input provides standard error in functionality.
	alpha returns the signal of alpha. t0 returns the start time of the waveform. dt returns the time interval, in seconds, between data points in the waveform. Y returns the data values of the waveform.
	beta returns the signal of beta. t0 returns the start time of the waveform. dt returns the time interval, in seconds, between data points in the waveform. Y returns the data values of the waveform.
	gamma returns the signal of gamma. t0 returns the start time of the waveform. dt returns the time interval, in seconds, between data points in the waveform. Y returns the data values of the waveform.
	error out contains error information. This output provides standard error out functionality.

ABC to Alpha-Beta-Gamma Transform Details

The equations for transforming voltage also apply to current. This section takes the voltage equations for an example.

This VI uses the following equations to transform signals from the ABC reference frame to the alpha-beta-gamma reference frame:

Magnitude Invariant

where

        [v_a, v_b, v_c] represents signals in the ABC reference frame

        [v_α, v_β, v_γ] represents signals in the alpha-beta-gamma reference frame

Power Invariant

where

        [v_a, v_b, v_c] represents signals in the ABC reference frame

        [v_α, v_β, v_γ] represents signals in the alpha-beta-gamma reference frame

Example

Refer to the Transforms VI in the labview\examples\Electrical Power\EV Power Test\Transforms directory for an example of using the ABC to Alpha-Beta-Gamma Transform VI.