线性定常系统状态空间表达式的电路模型

Circuit Model of State Space Expression for Linear Static System

线性定常多输入—多输出系统的状态空间表达式包括状态方程和输出方程,其中每个方程式都可以用KCL或KVL电路模型表示,这两种模型互为对偶电路。令所有方程式的电路模型共地,得到的整体电路就是状态空间表达式的电路模型。应用PSpice对电路模型进行仿真分析,可得到状态量和输出量的时域波形、状态轨迹和频率特性。这一方法可以应用于电机和自动控制系统等领域,尤其对于某些状态量不能直接测量的系统。

State space expression for linear static multi - input and multi - output system includes the state equation and output equation. Every equation model can be expressed by KCL or KVL circuit which is dual circuit. All of the circuit models are common-earth, and the whole circuit is the model of state space expression. The simulation which is analysised by Pspice can gain the time wave, state track and frequency characteristic of the state variables and output variables . The method can be used in other areas such as electrical engineering, automatic control system, etc, especially the system which state cannot measure directly.