位置随动系统设计

论文编号:ZD245 论文字数:20392,页数:50

摘 要

 根据现代直流伺服控制的基本结构，分析设计了功率转换电路、控制电路、驱动电路、保护电路以及辅助电源等各组成部分。文章介绍了直流PWM伺服驱动装置控制原理及特点，PWM系统工程中的有关问题，以及系统静，动态性能设计计算。采用H型双极模式PWM控制变换电路的设计方法，在功率变换电路中使用了GTR开关管等大功率元器件，在控制电路中使用恒频波形发生器，脉宽调制器等控制芯片，采用了电压型PWM及电流型PWM控制模式，构成位置，电压，电流，三闭环反馈控制系统。
 
 关键词：位置随动系统；PWM；校正。

Design on Servocontrol Systerm

Abstract

 This text introduced the basic structure of the modern the servocontrol of d.c., the analysis designed the power convert telephone, control circuit, drive circuit, protection telephone and assistance the power supply etc. the each constituting the fraction.The article introduced the d.c. PWM servo drives device control principle and characteristicses, PWM system engineering inside relevant problem, and system stat, dynamic performance design computing.The method of design that adoption H type duotriode pattern, schema PWM control the transform telephone, used the big power in etc. in tube in switch in GTR a device in power transform telephone, use the  waveform occurrence machine in control circuit, the vein breadth makes machine etc. the control the chip, adopting the voltage type PWM and current type the PWM the control the pattern, schema, composing site, voltage, current, three shut the ring feedback control the system.

 Keyword:PWM;Amplification;GTR;Correction.

目 录

摘要.............................................................Ⅰ
Abstract.............................................. ..........Ⅱ
绪论.............................................. ...............1
第1章  PWM功率转换电路的设计.........................................3
 1.1 伺服系统对PWM驱动装置的要求..................................3
 1.2 功率转换电路形式的选择..........................................4
 1.2.1 H型双极模式PWM控制原理................................4.
 1.3 功率转换电路主要器件的选取......................................6
 1.3.1 PWM功率转换用GTR.......................................6
 1.3.2 三极管的工作特性..........................................7
 1.3.3 GTR存储时间对PWM系统的影响............................8
 1.3.4 GTR的损坏和保护..........................................9
 1.3.5 GTR的二次击穿损坏........................................9
 1.3.6 GTR的暂态保护............................................10
 1.4 功率转换电路供电电源的设计......................................10
 1.4.1 磊升电压对功率转换电路以及供电电源的影响..................10
第2章PWM系统控制电路的分析与设计....................................12
 2.1 脉宽调制器的一般特性极其电路....................................12
 2.2 恒频波形发生器..................................................12
 2.3 脉宽调制器......................................................13
 2.4 脉冲分配逻辑延时电路............................................14
 2.5 保护电路........................................................14
 2.6 基极驱动电路....................................................14
 2.7 PWM开关频率的选取原则.........................................15
 2.8 控制作用的辅助装置..............................................16
 2.9 伺服检测装置的确定..............................................16
 2.9.1 速度控制系统测量装置的选择................................17
 2.9.2 位置控制系统测量装置的选择................................18
 2.10 校正网络和调节器补偿形式的选取.................................20
 2.10.1 串联校正.................................................20
        2.10.2 并联校正...........................................21
 2.10.3 引入积分.................................................22
 2.10.4 引入微分.................................................22
 2.10.5 偿不稳定零（极）点.......................................23
 2.10.6 反馈校正.................................................23
 2.10.7 抑制干扰.................................................23
 2.10.8 实现动态特性的拟合.......................................23
 2.10.9 复合控制.................................................24
第3章 多环控制系统的分析与参数计算..................................24
 3.1 电流环设计.................................................26
 3.2 速度环设计.................................................29
 3.2.1转速调节器的结构选择与实现.................................29
 3.3位置环设计.................................................33
第4章　　系统的MATLAB仿真分析...................................37
 4.1双闭环调速系统仿真方法的论证.................................37
 4.2电流环的MATLAB仿真与分析....................................37
 4.3转速环的MATLAB仿真........................................41
第5章  直流稳压电源的设计........................................45
 5.1 电源的设计.................................................45
结论...........................................................48
致谢...........................................................50
参考文献........................................................51