VM双闭环不可逆直流调速系统的仿真.doc

PAGE ７PAGE ５ PAGE ０摘 要 转速、电流双闭环控制直流调速系统是性能很好、应用最广的直流调速系统。在设计中调速系统的主电路采用了三相全控桥整流电路来供电。本文采用转速、电流双闭环直流调速系统为对象来设计直流电动机调速控制器。为了实现转速和电流两种负反馈分别起作用，在系统中设置两个调节器，分别调节转速和电流，即分别引入转速负反馈和电流负反馈，二者之间实行嵌套联接。从闭环结构上看，电流环在里面，称作内环；转速环在外边，称做外环。这就形成了转速、电流双闭环调速系统。先确定其结构形式和设计各元部件，并对其参数计算。最后采用MATLAB/SIMULINK对整个调速系统进行了仿真分析。 关键词： 双闭环； 转速调节器；电流调节器ABSTRACTSpeed and current dual-loop control performance of DC speed control system is very good, the most widely used DC drive system. Speed control system in the design of the main circuit using three-phase full controlled bridge rectifier circuit to supply. In this paper, the speed and current dual closed loop DC system for the object to design DC motor speed controller. In order to achieve both speed and current role of negative feedback, respectively, both set in the system regulator, adjust the speed and current, respectively, that were introduced speed and current negative feedback negative feedback, the implementation of a nested connection between the two. From theclosed-loop structure, the current loop on the inside, called the inner ring; speed ring on the outside, called the outer ring. This form of speed and current dual-loop speed control system. To determine its structure and design of various components, and theparameter calculation. Finally, using MATLAB / SIMULINK control system for the entiresimulation analysis. Keywords: double loop speed regulator current regulator 目录 TOC \o 1-3 \h \z \u HYPERLINK \l _Toc200168323 1 双闭环直流调速系统的组成和工作原理 6 HYPERLINK \l _Toc200168324 1．1双闭环直流调速系统的组成 6 HYPERLINK \l _Toc200168324 1．1．1双闭环直流调速系统的结构图 6 HYPERLINK \l _Toc200168324 1．1．2双闭环直流调速系统的电流调节环 6 HYPERLINK \l _Toc200168324 1．1．3双闭环直流调速系统的速度调节环 7 HYPERLINK \l _Toc200168329 2 双闭环直流调速系统启动过程分析 7 HYPERLINK \l _Toc200168324 2．1双闭环直流调速系统起动时的转速和电流波形 7 HYPERLINK \l _Toc200168324 2．2双闭环直流调速系统的起动过程 7 HYPERLINK \l _Toc200168324 2．3双闭环直流调速系统的动态抗扰性能 8 HYPERLINK \l _Toc200168324 2．3. 1双闭环直流调速系统的抗负载扰动 8 HYPERLINK \l _Toc200168324 2．3. 2