基于离散滑模控制的音圈电机伺服系统  

Servo System for Voice Coil Motor Based on Discrete Sliding Mode Control

作　　者：曾浩炫 陈光胜[1] 

机构地区：[1]上海理工大学机械工程学院,上海

出　　处：《建模与仿真》2024年第2期1921-1928,共8页Modeling and Simulation

摘　　要：音圈电机作为一种先进的直接驱动电机技术,已经在许多应用领域得到广泛应用,并且随着其应用场景不断扩展和发展,对于音圈电机的控制要求也在不断更新。在一些工业化场景中,受限于成本,需要在有限的计算资源里有更高效的电机控制算法,以此为设计目标,本文设计了一个改进的离散时间快速终端滑模控制算法,该算法在有外部干扰的情况下对伺服位置跟踪仍有较高精度。首先,根据数学模型推导出音圈电机的传递函数,并进一步构建出其离散状态空间方程;其次,依据滑模变结构控制理论设计离散系统控制算法,并通过数理方法验证其优越性;最后通过Simulink完成音圈电机控制系统仿真验证,仿真结果验证了该控制算法具有较高的精度,可以实现对音圈电机的精密伺服控制。As an advanced direct-drive motor technology, voice coil motors have been widely used in many applications, and the control requirements for voice coil motors are constantly updated as their application scenarios continue to expand and develop. In some industrialized scenarios, due to cost constraints, more efficient motor control algorithms are needed in limited computational resources, and with this as the design goal, this paper designs an improved discrete-time fast terminal sliding-mode control algorithm, which still has high accuracy for servo position tracking in the presence of external interference. Firstly, the transfer function of the voice coil motor is deduced according to the mathematical model, and its discrete state space equations are further constructed;secondly, the discrete system control algorithm is designed according to the theory of sliding mode variable structure control, and its superiority is verified by the mathematical method;finally, the control system of the voice coil motor is completed by Simulink, and the simulation result verifies that the control algorithm has a higher accuracy and can realize the precision servo control of the voice coil motor.

关 键 词：音圈电机 离散滑模控制 伺服控制 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术]