1, professional introduction
Control Science and Engineering: (the first-level discipline enrolls about 40 students every year) The automation specialty of our school was founded in 1959, and it is one of the earliest universities in China. 1986 awarded a master's degree in automation (now control theory and control engineering). In 2003, it was allowed to independently set up a doctoral program in chemical equipment and process control. In 2006, it was awarded a doctoral program in control theory and control engineering and a master's degree in control science and engineering. This subject has been engaged in scientific research and engineering application research in production process modeling and simulation, advanced control and optimization, computer measurement and control technology, power system automation and so on, and has done a lot of pioneering work in advanced control and real-time optimization of petrochemical industry. The research results have been applied in many domestic catalytic cracking, atmospheric and vacuum distillation and ethylene plants, and good social and economic benefits have been achieved. 10 years, it has won many national and provincial scientific and technological progress awards, including the second prize of national scientific and technological progress 1, the third prize of national scientific and technological progress 1, the first prize of China Petrochemical Scientific and Technological Progress Award, the second prize, the third prize and the national invention patent authorization 1.
2. The employment of this major is still relatively wide, and it is needed in the upper, middle and lower reaches of petroleum. For example, upstream oil mining machinery, exploration equipment, middle-stream oil production and gathering equipment, and downstream oil refining equipment all need talents in this field. In previous years, this major was in the middle of the school, so you can try to learn.
3. If it is upstream, go to the site, that is, the well site; Go to midstream gathering and transportation station and oil production brigade; Downstream of the refinery. Of course, it will be more stable if you can go to a scientific research unit. If the treatment is very different, scientific research is greater than production; International is greater than domestic; The central government is greater than the local government.
Attachment: Outline of Control Engineering Foundation Examination
Course Name: Fundamentals of Control Engineering
Applicable major: mechanical and electronic engineering
Bibliography: Control Engineering Foundation Higher Education Press, Wang Jiwei.
System Analysis and Control, Sun Zengqi, Tsinghua University Publishing House, 1994.
Examination content requirements
The first chapter is introduction.
Master the basic composition, feedback control principle and basic requirements of automatic control system.
The basic concept of control system, the structure and classification of control system and the composition of feedback control system.
Chapter II Mathematical Model
Familiar with the establishment of differential equation of electromechanical system, master the concept, modeling method and transformation of mathematical model of control system, and learn block diagram representation and its equivalent transformation.
Write equations of motion, Laplace transform and inverse transform, Laplace transform to solve differential equations, transfer function, structural diagram representation and equivalent transformation, simplification, impulse response and step response, simple mechanical, circuit and electromechanical system modeling.
Chapter III Time Domain Analysis Method
Familiar with the dynamic response of typical links, master the time domain analysis of system stability, system steady state and dynamic performance indicators.
Time response solution, stability criterion, stability region of parameters, steady-state performance analysis and static error, dynamic performance index and second-order single-output system analysis.
Chapter IV Frequency Domain Analysis Method
Master the basic concept of frequency domain characteristics of the system, skillfully draw the Nissl diagram and Bode diagram of the system, master the frequency domain analysis method, and analyze the system characteristics according to the open-loop performance.
Frequency characteristic function, image of frequency characteristic function, frequency characteristic diagram of basic unit, Bode diagram of complex frequency characteristic, relationship between closed-loop frequency and open-loop frequency characteristic function, Nyquist stability criterion, stability margin of control system, relationship and analysis of control system performance index, and dynamic performance analysis of closed-loop system based on open-loop frequency characteristic.
Chapter V Design and Calibration of Control System
PID control law, frequency series correction and design, master the concept of parallel correction and compound correction principle.
Chapter six. Sampling control system
Composition of sampling control system, sampler and holder, difference equation and Z transform, discrete transfer function, stability of sampling system. Discrete PID controller and its algorithm implementation.