A Beginner’s Guide

By

Melvin Koshy

E-mail:

11kvac@gmail.com

melvinkoshy@gmail.com

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 panel

Double click each element to change the values. Right-click to rotate an element.

Connect the elements by ‘wire’ tool.

Before starting simulation, 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.

Close simulation control window

Click “Run Simulation” or press F8

On running the simulation the SIMVIEW window will be opened automatically.

If it does not open automatically, 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