Compute total harmonic distortion (THD) of signal
Control and Measurements/Measurements
The THD block computes the total harmonic distortion (THD) of a periodic distorted signal. The signal can be a measured voltage or current.
The THD is defined as the root mean square (RMS) value of the total harmonics of the signal, divided by the RMS value of its fundamental signal. For example, for currents, the THD is defined as
The THD has a null value for a pure sinusoidal voltage or current.
Specify the frequency, in hertz, of the fundamental signal.
Specify the sample time of the block, in seconds. Set to 0 to implement a continuous block.
|Sample Time||Specified in the Sample Time parameter|
Continuous if Sample Time = 0
|Scalar Expansion||Yes, of the parameters|
The model sample time is parameterized by the Ts variable set to a default value of 50e-6 s. Set Ts to 0 in the command window to simulate the model in continuous mode.