Resampling for Power Quality VI

Owning Palette: Preprocessing VIs

Requires: Electrical Power Toolkit

Resamples even-time-spaced voltage and current signals into even-angle-spaced signals. The output signals are synchronous with the line frequency with a constant number of samples per cycle. Use the FPGA Resampling VI if you want to perform resampling on FPGA targets.

This VI supports measuring single-line and multiple-line systems.

Details  Examples

	reset? specifies whether to reset the resampling process. The default is FALSE. When you call this VI for the first time, the resampling process resets automatically.
	data in specifies the even-time-spaced voltage and current signals. 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.
	reference channel index specifies the channel of the input data that this VI uses as a reference to detect the resampling time and frequency. The default is 0. reference channel index must be less than the array size of data in.
	system info in specifies the basic configuration of the electrical power system. Use the Initialize System VI to generate the basic configuration information.
	error in describes error conditions that occur before this node runs. This input provides standard error in functionality.
	resampled data returns the resampled signal and its information. resampled signal returns the even-angle-spaced voltage and current signals. sample rate returns the instantaneous sample rate, in hertz, of the resampled signal. timestamp returns the timestamp of the end of the resampled signal.
	system info out returns information about the basic configuration of the electrical power system.
	error out contains error information. This output provides standard error out functionality.

Resampling for Power Quality Details

Related Information
Line and Bus Configurations

Examples

Refer to the following VIs for examples of using the Resampling for Power Quality VI:

• labview\examples\Electrical Power\Power Quality\Applications (DAQmx)\Power Quality Applications (DAQmx).lvproj
• labview\examples\Electrical Power\Power Quality\Calibration (DAQmx)\Calibration for Power Quality Measurement (DAQmx).lvproj
• Advanced Motor Monitoring VI: labview\examples\Electrical Power\Motor Monitoring