基于matlab的控制系统校正设计

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1、······························装·················订·················线······························安徽工业大学毕业设计（论文）说明书摘要控制系统校正属于系统设计环节，通过校正可以使系统的性能得到改善，从而使系统满足期望的性能指标。本文主要研究线性定常系统的串联校正方法，包括串联超前校正、串联滞后校正和串联滞后超前校正。本文首先回顾了系统的时域性能指标和频域性能指标以及系统的校正方式，然后分别讨论了系统校正的根轨迹法和频率特性法。针对

2、两种方法，分别给出了控制系统超前校正、滞后校正，滞后超前校正的理论依据、适用范围、校正步骤和相应的算法流程图，并针对各个校正方法编写了相应的MATLAB仿真程序，同时利用MATLAB的图形用户界面设计功能对控制系统校正进行了可视化界面设计，为每种校正方法设计了对应的GUI界面。针对每种方法给出具体实例验证了校正方法的有效性以及算法的正确性。关键词：串联校正，MATLAB，根轨迹法，频率特性法，GUIIV······························装·················订··············

3、···线······························安徽工业大学毕业设计（论文）说明书AbstractControlsystemcorrectionisapartofsystemdesign.Withacompensator,thesystemcanbemorepreciseandmorestable,thusthesystemcanmeettherequirement.Thispaperinvestigatesthedesignofcascadecompensatorsforlineartimeinvaria

4、ntsystem,includingcascadephase-leadcompensators,cascadephase-lagcompensatorsandcascadephaselag-leadcompensators.Wefirstrecalltheperformanceindicatorsintimedomainsandinfrequencydomains,andthecorrectionmethodsforlineartimeinvariantsystems.Then,wediscussthecompensatord

5、esignmethodsbasedonroot-locusandfrequencycharacteristics.Forthebothmethods,thetheoreticalbasisandapplicablerange,correctstepsandthecorrespondingalgorithmflowchartsaregivenforphase-leadcompensator,phase-lagcompensatorandphaselag-leadcompensator.MATLABprogramsarewritt

6、enforeachcorrectionmethods.VisualinterfacesaredesignedusingMATLAB’sGUIdesignfunction.Also,wegivesomeexamplestoillustratetheeffectivenessofourcorrectionmethodsandthecorrectnessofouralgorithms.Keywords:cascadecompensator,root-locusmethod,frequencycharacteristicsmethod

7、,MATLAB,GUIIV······························装·················订·················线······························安徽工业大学毕业设计（论文）说明书目录摘要IAbstractII1绪论11.1课题的意义及研究现状11.1.1MATLAB的发展及系统构成21.1.2MATLAB的GUI设计31.2创新点41.3论文的结构42控制系统校正的方法52.1控制系统的性能指标52.1.1控制系统的时域指标52.1.2控制系统的频域指

8、标62.1.3一阶系统的性能指标72.1.4二阶系统的性能指标82.2控制系统的校正方式103控制系统的根轨迹校正123.1根轨迹方法123.2开环零极点对根轨迹的影响123.2.1开环零点对根轨迹的影响123.2.2开环极点对根轨迹的影响133.2.3开环偶极子对根轨迹的影