《机电传动控制》陈军中国矿业大学出版社
Introduction
Electromechanical Drive in generalis the system，in which the motor is the prime mechanism to drive the machinery.(联系课本p1图0-1和机械设计PPTThe composition of a machine 相关知识)
In addition to study The basic principles and characteristics of the motor, this course 启动 制动
Electric machinery 电机=Generator发电机+Motor电动机（二者原理上可逆，electrical energy电能，mechanical energy机械能，turnXintoX）
The basic knowledge
1. Concepts
Mechanical properties机械特性——The relationship 转矩(T) and (n) on the same shaft. We can show it by Formulas n=f(T) and n—T diagram.
2. Motor state电机状态:Stable operation稳定运行,start ,speed control and brake
3. Type of motor:
1) DC motor,
2) AC motor——Asynchronous异步 electric motor, Synchronous同步 electric
motor
（control motor: servo motor伺服电机，stepping motor步进电机。有交流也有直流。Widely used in Automatic Control Systems.）
4. Equation of motion运动方程
Single axis——课本p7公式1、2，p7图1-5 (direction：课本p8图1-6) →several axis——课本p11公式1、2，p9图1-8
→effect：can calculate the start or braking time（课本p14~15）
DC motor(direct current)
1. Feature：easy to control，but the structure is Complex and expensive
2. The structure：(课本p23图2-11)
1) Stator定子——磁场, support motor，主磁极，
2) Rotor/armature转子——Producing and 感应电动势，including rotor core转子铁芯，
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