自控原理英文版分析

1-1 What is a control system?
Temperature control system
Desired temperature
Fra Baidu bibliotekthermometer
furnace
operator
gas
valve
air
mixer
1-1 What is a control system?
water level control system
1-3 What is an automatic control system?
UR
UT
Amplifier
Amplifier
Thermocouple Furnace
Potentiometer Motor
Valve
Gas Air
Mixer
Temperature automatic control system
1-1 What is a control system?
examples
Control of Traffic Lights
1-1 What is a control system?
Furnace temperature control system
Switch Power
Heater
Furnace
2. According to whether the system is satisfied the superposition principle
Linear Systems versus Nonlinear System
A linear system satisfies the properties of superposition and Homogeneity: (Principle of Superposition).
Continuous Systems versus Discrete Systems 5. According to the number of I/O
SISO Systems versus MIMO Systems 6. According to the structure of the system
1-3 What is an automatic control system?
water level automatic control system
1-4 types and Basic components of control systems.
1. According to the form of given signal Regulator Systems versus Servo Systems (恒值系 统和随动系统）
1-4 types and Basic components of control systems.
Principle of superposition
Superposition Property
r1
system
y1
r1 r2
system
y1 y2
r2
system
y2
Homogeneity Property
由相互关联的部件按一定的结构构成的 系统，能够提供预期的系统响应。
1-2 Why are control systems important?
(1)控制系统无处不在. (2)提高产量，降低成本. (3)提高精度、可靠性. (4)能够在许多人不到达的场所发挥作用.
1-3 What is an automatic control system?
Desired temperature
thermometer
operator
gas
valve
air
furnace
mixer
1-3 What is an automatic control system?
Definition of automatic control system
A control system without people involved is called automatic control system.
Chapter 1:
Introduction to Automatic Control
重点掌握: •控制系统的基本组成 •基本的控制方式及反馈控制系统的特点 •控制系统的性能要求
Main contents
1-1 What is a control system? 1-2 Why are control systems important? 1-3 What is an automatic control system? 1-4 Basic components and types of control system. 1-5 How to evaluate a automatic control system? 1-6 The development of automatic control theory.
Open-loop system, closed-loop system (feedback control systems), Compound Control systems
1-4 types and Basic components of control systems.
1-1 What is a control system?
Definition of a control system
An interconnection of components forming a system configuration that will provide a desired system response.
r
system
y
ar
system
ay
1-4 types and Basic components of control systems.
3. According to whether the system’s parameters are changed with time
Time-Invariant Systems versus Time-varying System 4. According to the form of the signal