Rectifier6pulseFFTExample of FFT block 
This information is part of the Modelica Standard Library maintained by the Modelica Association.
This example is based on a 6pulse rectifier example, calculating the harmonics with the FFT block.
As expected, one can see the 5^{th}, 7^{th}, 11^{th}, 13^{th}, 17^{th}, 19^{th}, 23^{th}, 25^{th}, ... harmonic in the result.
V 
Value: 100 * sqrt(2 / 3) Type: Voltage (V) Description: Amplitude of starvoltage 

f 
Value: 50 Type: Frequency (Hz) Description: Frequency 
RL 
Value: 0.4 Type: Resistance (Ω) Description: Load resistance 
C 
Value: 0.005 Type: Capacitance (F) Description: Total DCcapacitance 
VC0 
Value: sqrt(3) * V Type: Voltage (V) Description: Initial voltage of capacitance 
transformerData1 
Value: Type: TransformerData 
source 
Type: SineVoltage 


starAC 
Type: Star 

groundAC 
Type: Ground 

currentSensor 
Type: CurrentSensor 

diode1 
Type: IdealDiode 

star1 
Type: Star 

diode2 
Type: IdealDiode 

star2 
Type: Star 

load 
Type: Resistor 

cDC1 
Type: Capacitor 

cDC2 
Type: Capacitor 

groundDC 
Type: Ground 

transformerData1 
Type: TransformerData 

transformer1 
Type: Dy01 

realFFT 
Type: RealFFT 