《现代控制工程（第5版）（英文版）》为自动控制系统的经典教材，详细介绍了连续控制系统（包括电气系统、机械系统、流体动力系统和热力系统）的数学模型建模方法，动态系统的瞬态和稳态分析方法，根轨迹分析和设计方法，频率域的分析和设计方法，以及PID控制器和变形PID控制器的设计方法；同时还比较详细地介绍了现代控制理论中的核心内容，状态空间分析和设计方法。最后还简要地介绍了20世纪80~90年代发展起来的称为“后现代控制理论”的鲁棒控制系统。全书自始至终，贯串了用MATLAB工具分析和设计各类控制系统问题。

Chapter 1 Introduction to Control Systems
1.1 IntrOduction
1.2 Examples of Control Systems
1.3 Closed.Loop Control Versus Open.Loop Contr01
1.4 Design and Compensation of Control Systems
1.5 Outline of the Book
Chapter 2 Mathematical Modeling of Control Systems
2.1 Introduction
2.2 Transfer Function and Impulse.Response Function
2.3 Automatic Control Systems
2.4 Modeling in State Space
2.5 State.Space Representation of Scalar Differential Equation Systems
2.6 Transformation of Mathematical Models with MATLAB
2.7 Linearization of Nonlinear Mathematical Models
Example Problems and Solutions
Problems
Chapter 3 Mathematical Modeling of Mechanical Systems and Electrical Systems
3.1 Introduction
3.2 Mathematical Modeling of Mechanical Systems
3.3 Mathematical Modeling of Electrical Systems
Example Problems and Solutions
Problems.
Chapter 4 Mathematical Modeling of Fluid Systems and Thermal Systems
4.1 Introduction
4.2 Liquid.Level Systems
4.3 Pneumatic Systems
4.4 Hydraulic Systems
4.5 Thermal Systems
……
Chapter 5
Chapter 6
Chapter 7
Chapter 8
Chapter 9
Chapter 10

精彩书摘

Because this theory requires mathematical background at the graduate level。inclu-sion of robust control theory in this book is limited to introductory aspects only．Thereader interested in details of robust control theory should take a graduate·level controlcourse at an established college or university． Definitions．Before we can discuss control systems，some basic terminologies mustbe defined． Controlled Variablend Control Signal or Manipulated Variabl~The controlledvariable is the quantity or condition that is measured and controlled．The control signalor manipMated variable is the quantity or condition that is varied by the controller soas to affect the value of the controlled variable．Normally,the controlled variable is theoutput of the system．Control means measuring the value of the controlled variable ofthe system and applying the control signal to the system to correct or limit deviation ofthe measured value from a desired value． In studying control engineering，we need to define additional terms that are neces'sary to describe control systems． Plants．A plant may be a piece of equipment，perhaps just a set of machine partsfunctioning together，the purpose of which is to perform a particular operation．In thisbook，we shall call any physical object to be controlled(such as a mechanical device，aheating furnace，a chemical reactor，or a spacecraft)a plant． Processes．The Merriam二webster Dictionary defines a process to be a natural，pro-gressively continuing operation or development marked by a series of gradual changesthat succeed one another in a relatively fixed way and lead toward a particular result orend；or an artificial or voluntary,progressively continuing operation that consists of a se。ries of controlled actions or movements systematically directed toward a particular re-sult or end．In this book we shall call any operation to be controlled a process．Examplesare chemical，economic，and biological processes． Svstems． A system is a combination of components that act together and performa certain objective．A system need not be physical．The concept of the system can be applied to abstract．dynamic phenomena such as those encountered in economics．Theword system should，therefore，be interpreted to imply physical，biological，economic，andthe like，systems． Disturbances． A disturbance is a signal that tends to adversely affect the valueof the output of a system．If a disturbance is generated within the system，it is calledinternal,while an external disturbance is generated outside the system and is an input． Feedback Control Feedback control refers to an operation that．in the presence of disturbances，tends to reduce the difference between the output of a system and some reference input and does so on the basis of this difference．Here only unpredictable dis-turbances are so specified，since predictable or known disturbances can always be com-pensated for within the system．
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