三环直流伺服控制系统的设计与仿真  

Design and Simulation of Control System of Three-Loop DC Servo Electrical Driving

作　　者：赵竹青 

机构地区：[1]天水长城控制电器有限责任公司,甘肃天水741018

出　　处：《自动化与仪器仪表》2017年第4期39-41,共3页Automation & Instrumentation

摘　　要：采用三环控制方式设计了一个直流伺服控制系统。在转速、电流双闭环调速系统的基础上,增设了一个位置控制环。为了保证动态响应速度和定位时不产生震荡,电流环和速度环均采用PI调节,位置环采用P调节。采用MATLAB及SIMULINK软件平台对设计的直流伺服控制系统进行了仿真。结果表明,当输入单位阶跃信号时,得到不同位置调节器参数K下的阶跃响应。阶跃响应分析表明,随着K值的增大,系统的响应加快,阻尼程度减小;系统动态性能仿真说明,超调量σ%从无到有,调节时间t_s、上升时间t_r逐渐减小。A control system of DC servo-electric driving was designed using three-loop control in this paper. A position control loop was designed in the system on the basis of original speed and current double closed-loops. In order to ensure the speed of dynamic response and keep from oscillating as positioning, PI regulation was used both in current and speed loops, but position loop used P regulation. The DC servo control system was simulated in MATLAB and SIMULINK software platform. The step responses at different position modulator parameter Ks were obtained when unit step signal were input. The analysis on the step response shows that with the increase in K value, response of system becomes more rapidly, and the degree of damping decreases. The system dynamic performance of the simulation demonstrates that the overshoot σ% from scratch, the regulating time ts and the rise time tr gradually decreases.

关 键 词：位置随动 控制系统 仿真 三环控制 直流伺服 

分 类 号：TM33[电气工程—电机]