Application in Deciding of Control System Stability Based on Matlab

The paper introduces the control system stability idea.It expounds the difference and relation of the algebra stability criterion,the foot locus law and Bode′s chart in the classics control theory.It introduces Lyapunov′s law application in the contemporary control theory in deciding of control system stability,proposes in the way of Matlab software to apply in the algebra stability criterion,foot locus law,Bode′s chart and Lyapunov′s law in deciding of control system stability.It decides the means simply as to the different in deciding of control system stability.Algebra stability criterion,foot locus law,Bode′s chart and Lyapunov′s law,the application gives out correlation instance,order and relevant figure.Expounding to decide the stability means on the basis of Matlab′s computational solution.