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THD

Symbol

Description

Calculate the THD value of the input signal. The THD value is evaluated at the specified frequency.

output = \frac{\sqrt{input_{rms}^2-input_1^2}}{input_1}

where input_{rms} is the RMS of the input and input_1 is the fundamental of the input

Important

A sampling time must be specified for the THD model to work. Otherwise, an error is thrown.

Library

Control > Discrete

Pins

Name Description
In Input
Out Output

Parameters

Name Description
Frequency Frequency in Hz
SamplingTime -none or 0: No sampling. The system will be solved in the Newton loop (default).
-auto: Inherit the sampling time of its source device.
-Sampling Period: defined in seconds.