A Beginner’s Guide
By Melvin Koshy E-mail:
[email protected] [email protected]
PSIM interface
Select File / New
All the components are available under the elements menu. Explore it yourself
Let’s start by setting up a simple circuit - HALF WAVE RECTIFIER
Click on components and place it in the work wo rk panel Double click each element to change the values. Right-click to rotate an element. Connect the elements by ‘wire’ tool.
Before starting simulation s imulation,, select simulation control from simulate tab. Place the clock at convenient portion in work panel Specify the time step, total time and other requisite parameters. para meters. Close simulation control window
Click “Run Simulation” or press F8
On running the simulation s imulation the SIMVIEW window will be opened ope ned automatically. If it does not open automatically, a utomatically, click “ click “Run Simview” from Simulation tab or press Alt+F8
Select parameter to be displayed (voltage in this case) to be displayed
SIMULATION RESULTS
CIRCUIT - 2 POSITIVE CLIPPER
SIMULATION RESULTS
CIRCUIT - 3
SIMULATION RESULTS
Note the difference in output. The wave is clipped at +3V. The minimum of the wave is -6V which is due to the voltage divider action of two 1 ohm resistors
CIRCUIT – 4 DOUBLE CLIPPER
SIMULATION RESULTS
CIRCUIT – 5 RL Circuit
SIMULATION RESULTS
CIRCUIT – 6
Single phase half wave controller with R Load
Set Alpha (DC voltage) = 30V Set alpha control (firing angle) to 30 degrees. The firing angle block i.e. alpha controller is available from the elements menu
SIMULATION RESULTS Firing angle = 30 deg The peak value of parameters are shown in the measure window
Firing angle = 90deg Set Alpha (DC voltage) = 90V Set alpha control (firing angle) to 90 degrees.
Firing angle = 120 deg Set Alpha (DC voltage) = 120V Set alpha control (firing angle) to 120 degrees.
Single phase semiconverter with RL
Load
Replace the R load by RL load from the elements tab as shown below
CIRCUIT – 7
Single phase AC voltage controller with R Load
SIMULATION RESULTS