Modeling and Simulation of Random Control System Based on MATLAB/Simulink

In the paper the composing of the random control system is introduced firstly.Then the mathematic models of different proportions such as servo motor,PWM servo amplifier and encoder are established,and the whole mathematic model is founded.Secondly,the PID parameters of different taches on different mathematic models are designed.Last but not least,through the simulation based on MATLAB/Simulink,the whole system simulation structure、response and error curve of different frequent input signals are founded.Through simulation,the correctness and feasibility of the controlling project are proved,and the project satisfied the designed inputting requirements.