基于MATLAB的系统根轨迹法超前校正设计研究
Advanced Correction Study of System Root Locus Method Based on MATLAB

本论文采用根轨迹法分析，设计一个串联超前校正器，同时结合几何作图等方法。使用该方法，能够得出较为准确的校正结果，且无需复杂的多次试凑，从而更简单、有效第地设计线性控制系统。通过运用该方法对实例控制系统进行校正并用MATLAB编写系统校正前的程序，观察MATLAB程序运行结果，得出系统性能无法满足要求的结论，再次编写程序增添校正装置提高系统性能直到符合设计要求。利用MATLAB中的Simulink仿真验证其动态性能。就可以设计出超前校正器并验证该方法的准确性。
In this paper, a series lead corrector is designed by root trajectory analysis, combined with geometric drawing. Using this method, more accurate correction results can be obtained without complex multiple trials, so as to design linear control systems more simply and efficiently. By using this method to calibrate the instance control system and write the program before system calibration with MATLAB, the paper observes the operation results of the MATLAB program, concludes that the system performance cannot meet the requirements, and writes the program again to add the correction device to improve the system performance until it meets the design requirements and validates its dynamic performance with Simulink simulation in MATLAB. It is possible to design a lead corrector and verify the accuracy of the method.