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稳态误差是描述控制系统稳态性能的重要指标,针对其概念理解难,计算过程繁琐,以0型、I型二阶控制系统为例,分别采用Multisim硬件模拟电路仿真和Matlab软件仿真,分析了在单位阶跃输入和单位斜坡输入下的误差响应曲线。仿真实验结果表明:仿真结果均与理论分析一致。同时,形象、准确的可视化曲线有助于学生理解抽象的控制概念。
Steady-state error is an important index to describe the steady-state performance of control system. In view of its difficult to comprehend the concept and complicated calculation process, taking 0-type and I-type second-order control system as an example, this paper uses Multisim hardware simulation and Matlab software simulation The error response curve at unit step input and unit ramp input. The simulation results show that: the simulation results are consistent with the theoretical analysis. At the same time, the visual and accurate visualization curve helps students to understand abstract control concepts.