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传统的基于传递函数和非线性微分方程的舵机系统模型无法直接描述舵机组件的物理参数,而这些参数直接反应组件的健康状况。专业的电路仿真软件的出现,为解决这一问题提供了方法。针对舵机系统故障仿真的需求,设计舵机模型原理框图;选用电路仿真软件Proteus搭建舵机的电路模型,设计单片机程序,实现舵机位置随动功能;分析模型的时域响应和频域响应特性,验证舵机系统电路仿真设计方法的可行性。以直流电机线圈电阻的故障模式为例,进行了故障仿真分析。
The traditional servo system models based on transfer functions and nonlinear differential equations can not directly describe the physical parameters of steering gear components, and these parameters directly reflect the health status of the components. The emergence of professional circuit simulation software provides a solution to this problem. According to the requirement of the servo system fault simulation, the schematic block diagram of servo model is designed. The circuit model of the servos is set up by using the circuit simulation software Proteus. The singlechip program is designed to realize servo position servo function. The time domain response and frequency domain response Characteristics, verify the feasibility of circuit design method of steering system. Taking the fault mode of DC motor coil resistance as an example, the fault simulation is analyzed.