摘要
电动舵机与其PWM(pulse width modulation)驱动器是某武器伺服系统的重要组成部分。针对其建模与参数估计的问题,文中首先较详细地介绍了电动舵机与其PWM驱动器使用特点和应用技术,然后选用Simulink平台下的SimDrivelineTM以及SimPowerSystemsTM模块库建立起电动舵机与其PWM驱动器的物理模型;通过非线性最小二乘法拟合的方式,对模型中的参数进行了估计,最后通过校验数据集的输出响应验证了该物理模型有较高的精度。
The electromechanical actuator and its pulse width modulation（PWM） driver are important parts of servo system in certain weapon. Focused on the problem of the modeling and parameter estimation,the applied characteristics and techniques were introduced. Then, SimDriveline^TM and SimPowerSystems^TM modular libraries in Simulink were selected to set up their physical models,and the parameters of this model were estimated by nonlinear least squares. The output response of checking date set validated high precision of this physical model.
出处
《弹箭与制导学报》
CSCD
北大核心
2009年第5期91-94,共4页
Journal of Projectiles,Rockets,Missiles and Guidance
关键词
电动舵机
PWM
物理模型
参数估计
SIMULINK
electromechanical actuator
pulse width modulation
physical model
parameter estimation
Simulink
