Simulate a single-phase AC voltage controller and plot its voltage and current waveforms
using coding in the command window. The plot should be of minimum 300 dpi clarity.
Also include the FFT harmonic spectra of the current.
Ac voltage controller s a circuit used to convert fixed ac to variable ac without changing the frequency . This conversion with the advent of power electronic devices such as SCR, IGBT, MOSFET, etc. is made very efficiently and flexibly .
The control strategies available to vary fixed ac n ac voltage controller circuits are
Circuit diagram for simulation is shown below
Input and output wave forms
The expression for rms value of output voltage for resistive load is given by:
where, Value of input supply voltage
MATLAB circuit simulation diagram
Phase angle control input and output waveforms