examination syllabus

First, the content of the exam

Correctly understand the related concepts in the course of automatic control principle.

Master the equivalent transformation method of structure diagram and Mason formula. Can skillfully calculate the transfer function of the system according to the structure diagram.

Master algebraic stability criterion and its application method in judging system stability; Master the analysis and calculation method of system steady-state error; Grasp the characteristics of typical response of first-order and second-order systems and the relationship between model parameters and dynamic performance; Understand the influence of additional closed-loop zero poles on the dynamic performance of the system; Proficient in related analysis and calculation.

Proficient in drawing system root locus (including generalized root locus) and analyzing the variation law of system performance with parameters, and mastering relevant calculation methods.

Master the frequency characteristics of typical links, be able to draw the open-loop frequency characteristics of the system skillfully, and determine the transfer function from the frequency characteristics; Master frequency domain stability criteria; Understand the meaning of three frequency bands, and master the methods of stability margin calculation and system performance estimation; Correctly understand the closed-loop frequency characteristics and corresponding characteristic quantities.

Master frequency domain series correction methods; Master feedback correction and compound correction methods.

Master the difference equation and skillfully derive the pulse transfer function of discrete systems. Master the stability criterion and steady-state error calculation method of discrete systems.

Understand the characteristics of nonlinear system motion, and emphatically introduce the method of analyzing the stability and natural vibration of nonlinear system by description function method. Generally master the phase plane method.

Pay attention to the integration of concepts in each chapter and the comprehensive application of problem-solving methods.

Second, the bibliography

Lu Jingchao, Editor-in-Chief, Principles of Automatic Control (2nd Edition), Xi: Northwestern Polytechnical University Press.

Hu Shousong, Principles of Automatic Control (5th Edition), Beijing: Science Press.