“希望特性”串联校正方法及仿真研究

Research on Series Compensation Method and Simulation of“Hope Characteristics”

当自动控制系统性能指标不能满足设计要求时,可以采用加入校正装置或环节,改变整个系统的特性。本文利用"希望特性"校正的方法对系统进行校正。通过对校正前的系统开环传递函数进行分析,在频域内了解系统的性能指标,进而利用"希望特性"校正方法设计校正环节,完成校正。利用MATLAB对校正前后的系统进行仿真,结果表明系统在利用"希望特性"校正后性能指标满足设计要求。

When the performance index of the automatic control system cannot meet the design requirements,compensation devices or units can be added to change the characteristics of the entire system.This paper used the method of“hope characteristic”compensation to correct the system.By analyzing the open-loop transfer function of the system before compensation,the performance index of the system was understood in the frequency domain,and then the compensation link was designed by using the“hope characteristic”compensation method to complete the compensation.Using MATLAB to simulate the system before and after calibration,the results showed that the system performance index could meet the design requirements after the compensation using the“hope characteristics”.