摘要
研究飞艇电动舵机稳定性控制问题,针对飞艇研制工程可靠性的需求,为保证飞艇空中按轨迹稳定飞行,提出采用飞艇电动舵机方案。根据电动舵机系统的指标和负载情况,选择直流无刷电机和光电编码器作为电动舵机的功率元件和位置传感器,建立了完整的电动舵机系统。为了不受外部扰动影响,采用了滑模控制理论,并利用Matlab平台对滑模控制系统进行了计算机建模仿真。结果证明给出了位置伺服系统在各种情况下稳态工作波形。仿真结果说明建立的舵机研究模型是可信的,响应完全符合电动舵机的特性,可以作为飞艇电动舵机的系统设计提供依据。
A new type of electromechanical proportional control actuation system for airship is presented in this paper.This paper is based on the engineering practice of an airship project.According to the specifications of the actuator system,this paper chooses brushless DC motor as the electric power component,and potentiometer as the feedback component.Based on the analysis of the system,a complete model is established and simulated in this paper.The sliding-mode control theory is adopted so as not to be disturbed by the outside.The simulation of the model is built and the model is simulated with Matlab/Simulink.And the artificial experiment waveforms of the position servo system by simulation are presented.The result of computer simulation indicates that this model used in the paper is adoptable,and the response is correspond to the characteristics of electromechanical actuator.The presented model is feasible and it can be used as a model of electromechanical actuator.
出处
《计算机仿真》
CSCD
北大核心
2011年第4期48-52,共5页
Computer Simulation
关键词
飞艇
舵机
电机
控制电路
Airship
Actuator
Electric machinery
Control circuit
