Designation of interactive virtual simulation software for PID control

This paper describes a kind of interactive learning software of PID control and it's design method.This software can be used for assistant teaching,virtual experiment,self-study in teaching "The principle of automatic control" and "Process control" etc.The development of this virtual simulation software is based on Visual C++,Matlab/simulink and Matlab/RTW.By using it,many kinds of simulation experiment about PID control can be done.It help students to directly comprehend the physical meaning and working principle of PID control,and trains students' ability of research and synthetically application.