It is desired to design a power electronic system referred t

It is desired to design a power electronic system, referred to as \'the device\' in below, which has the following specifications: The device is supplied from a single-phase wall outlet which has a 240 V mis. 50 Hz specification (through terminals II, 12). The device can generate a fixed plusminus5 V dc (through terminals 01. 02, 03). The device can also produce a variable 0 to 20 V dc (through terminals 04. 05). The device can also produce two fixed 60 V 50 Hz ac outputs, that can even be connected in series to produce a fixed 120 V ac (through terminals 06, 07.08). The device can also produce a variable 0-60 V, 50 Hz or 60 Hz ac output (through terminals 09, Ol0). There will be a up/down button on the device to select either 50 or 60 Hz. The device will only have one of its outputs functioning at a time (i.e., it will not be loaded through multiple outputs simultaneously). The device should be able to supply a load (a variable resistor with a minimum resistance of 10 ohms), when connected to either of its output terminals. Your Task: Design the circuit and select the appropriate components for that circuit to fulfill the requirements of the device. Verify your design by MATLAB simulations. (Note that different sections of the design can be simulated separately to make the simulation faster.)

Solution

MATLAB PROGRAM

v01 = [0 20 5]

vo2 = [0 50 5]

vo3= [0 60 5]

v= sum(vo1 vo2 vo3)

vref = 240;

f=50;

r= 2

vdevice = vo1 or vo2 or vo3

p= vdevice*vdevice/r

p= pload

grid on