晶闸管双闭环直流调速系统范文.doc

2015届本科毕业设计 晶闸管双闭环直流调速系统的设计与仿真 院 （系） 名 称 物理与电子信息学院 专 业 名 称 电气工程及其自动化（过程控制方向） 学 生 姓 名 赵晓东 学 号 110544138 指 导 教 师 苗峰讲师 晶闸管双闭环直流调速系统的设计与仿真 赵晓东 物理与电子信息学院 电气工程及其自动化（过程控制方向）专业 学号：110544138 指导教师：苗峰 摘要：电动机是一种将电能转换为机械能的动力装置，现已广泛应用于工业、农业、交通运输、国防工业等各个领域。而电动机的调速性能，对于提高产品质量、提高劳动生产率、节约电能等方面有着直接的决定性的影响。所以研究电机的调速控制的先进理论和技术，不仅满足工业生产的要求，而且能提高能源的利用率。 MATLAB是目前流行的控制系统仿真软件，使用MATLAB软件对电机调速系统进行仿真设计和分析，有利于选择参数和设计的最合理的系统方案。 本文利用MATLAB软件中的Simulink工具箱，构建电机调速系统的仿真模型，对多种智能调速方法的仿真实现、性能分析和算法设计等方面进行了深入研究 关键词：晶闸管；双闭环；ASR；ACR；Simulink Design and Simulation of thyristor Double Loop DC Speed Control System Zhao Xiao-dong Physics and Electronic Information Electrical Engineering and Automation(Process Control direction) No: 110544138 Tutor: Miao Feng Abstract: Now no one needs to control the speed of the device, and its production process on the speed performance have certain requirements. If the production process of the static load of slip running demanding, this time using the speed closed-loop system can reduce landing speed, can resist the load fluctuation to some extent. But the current and torque control loop system dynamic process can not be arbitrary, and if you want to improve the speed of system as high as possible, the key is to get the maximum period of electric current to maintain constant process, which must require the system to have a very speed and current Good regulation and control action. According to the system of feedback and control , the use of a physical quantity of negative feedback can keep this amount basically unchanged. after reaching steady state speed, speed and want only negative feedback, negative feedback will not allow current occurs, this problem can be solved using the speed and current two regulators were controlled. Finally, through the Simulink system ,analysis features dual-loop DC speed control system and make summary. Key words: Thyristor; Dual-loop; Speed regulator; Current regulator; Simu