自动控制原理Matlab程序作业精.docx

自动控制原理Matlab程序作业精.docx

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自动控制原理Matlab程序作业精

自控控制原理MATLAB程序设计作业

指导老师:

汪晓宁

一、题目............................................2

二、运行结果........................................3

三、程序说明........................................8

四、附录............................................9代码..............................................9参考文献.........................................17

一、题目

用Matlab创建用户界面,并完成以下功能

a将产生未综合系统的根轨迹图以及0.707阻尼比线,你可以交互地选择交点的运行点。

界面能显示运行点的坐标、增益值以及近似为二阶系统估算的超调量、调整时间、峰值时间、阻尼比、无阻尼自然震荡频率以及稳态误差

b显示未综合系统的阶跃响应

c输入控制器的参数,绘制综合后系统的根轨迹图以及显示综合的设计点（主导极点,允许不断改变控制器参数,知道所绘制的根轨迹通过设计点

d对于综合后的系统,显示运行点的坐标、增益,近似为二阶系统估算的超调量、调整时间、峰值时间、阻尼比、无阻尼自然震荡频率以及误差系数

e显示综合后系统的阶跃响应

二、运行结果

输入传递函数分子分母

生成根轨迹图

选择点并得到该点各项参数在下方输出面板输出

获得阶跃响应图

用rltool（辅助,选择合适的插入零点

输入零点,并得到根轨迹图

选择根轨迹图上的任一点,得到数据,在下方输出面板输出

得到阶跃响应图

三、运行说明

第一步,在请输入分子后的输入框输入传递函数分子的矩阵,在下一输入框输入传递函数分母并按“生成根轨迹图”按钮获得根轨迹

第二步,按选择点并显示各参数获得根轨迹图上任一点的各项数据,数据全部输出在下方输出面板

第三步,按“生成阶跃响应图”按钮可以获得该函数的阶跃响应

第四步,在“请输入插入零点”后的输入框中输入参数,并按“生成综合后根轨迹图”按钮产生根轨迹（可以通过点击“根轨迹校正”按钮,调用工具箱拖动零点进行快速查看根轨迹图,选择合适的根轨迹再在输入框中输入零点的值

第五步,按“选择点并显示各参数（综合后系统”选取各点,查阅参数,数据输出在下方输出面板上

第六步,按“生成阶跃响应图（综合后系统”可以得到综合后系统的阶跃响应

最后,点击“退出”结束程序

四、附录

代码:

functionvarargout=Liushuai20122510（varargin

%LIUSHUAI20122510MATLABcodeforLiushuai20122510.fig

%LIUSHUAI20122510,byitself,createsanewLIUSHUAI20122510orraisestheexisting

%singleton*.

%

%H=LIUSHUAI20122510returnsthehandletoanewLIUSHUAI20122510orthehandleto

%theexistingsingleton*.

%

%LIUSHUAI20122510（'CALLBACK',hObject,eventData,handles,...

callsthelocal

%functionnamedCALLBACKinLIUSHUAI20122510.Mwiththegiveninputarguments.

%

%LIUSHUAI20122510（'Property','Value',...createsanewLIUSHUAI20122510orraisesthe

%existingsingleton*.Startingfromtheleft,propertyvaluepairsare

%appliedtotheGUIbeforeLiushuai20122510_OpeningFcngetscalled.An

%unrecognizedpropertynameorinvalidvaluemakespropertyapplication

%stop.AllinputsarepassedtoLiushuai20122510_OpeningFcnviavarargin.

%

%*SeeGUIOptionsonGUIDE'sToolsmenu.Choose"GUIallowsonlyone

%instancetorun（singleton".

%

%Seealso:

GUIDE,GUIDATA,GUIHANDLES

%EdittheabovetexttomodifytheresponsetohelpLiushuai20122510%LastModifiedbyGUIDEv2.516-Dec-201410:

28:

20

%Begininitializationcode-DONOTEDIT

gui_Singleton=1;

gui_State=struct（'gui_Name',mfilename,...

'gui_Singleton',gui_Singleton,...

'gui_OpeningFcn',@Liushuai20122510_OpeningFcn,...

'gui_OutputFcn',@Liushuai20122510_OutputFcn,...'gui_LayoutFcn',[],...

'gui_Callback',[];

ifnargin&&ischar（varargin{1}

gui_State.gui_Callback=str2func（varargin{1};

end

ifnargout

[varargout{1:

nargout}]=gui_mainfcn（gui_State,varargin{:

};

else

gui_mainfcn（gui_State,varargin{:

};

end

%Endinitializationcode-DONOTEDIT

%---ExecutesjustbeforeLiushuai20122510ismadevisible.

functionLiushuai20122510_OpeningFcn（hObject,eventdata,handles,varargin

%Thisfunctionhasnooutputargs,seeOutputFcn.

%hObjecthandletofigure

%eventdatareserved-tobedefinedinafutureversionofMATLAB%handlesstructurewithhandlesanduserdata（seeGUIDATA

%varargincommandlineargumentstoLiushuai20122510（seeVARARGIN

%ChoosedefaultcommandlineoutputforLiushuai20122510

handles.output=hObject;

%Updatehandlesstructure

guidata（hObject,handles;

%UIWAITmakesLiushuai20122510waitforuserresponse（seeUIRESUME%uiwait（handles.figure1;

%---Outputsfromthisfunctionarereturnedtothecommandline.functionvarargout=Liushuai20122510_OutputFcn（hObject,eventdata,handles

%varargoutcellarrayforreturningoutputargs（seeVARARGOUT;

%hObjecthandletofigure

%eventdatareserved-tobedefinedinafutureversionofMATLAB%handlesstructurewithhandlesanduserdata（seeGUIDATA

%Getdefaultcommandlineoutputfromhandlesstructure

varargout{1}=handles.output;

%---Executesonbuttonpressinpushbutton1.

functionpushbutton1_Callback（hObject,eventdata,handles

%hObjecthandletopushbutton1（seeGCBO

%eventdatareserved-tobedefinedinafutureversionofMATLAB%handlesstructurewithhandlesanduserdata（seeGUIDATA

num=str2num（get（handles.edit1,'String';

den=str2num（get（handles.edit2,'String';

G=tf（num,den;

rlocus（G

holdon;

sgrid（0.707,[]

holdoff;

%---Executesonbuttonpressinpushbutton2.

functionpushbutton2_Callback（hObject,eventdata,handles

%hObjecthandletopushbutton2（seeGCBO

%eventdatareserved-tobedefinedinafutureversionofMATLAB%handlesstructurewithhandlesanduserdata（seeGUIDATA

num=str2num（get（handles.edit1,'String';

den=str2num（get（handles.edit2,'String';

sys=tf（num,den;

[y,t]=step（sys;

plot（t,y;

gridon;

%---Executesonbuttonpressinpushbutton3.

functionpushbutton3_Callback（hObject,eventdata,handles

%hObjecthandletopushbutton3（seeGCBO

%eventdatareserved-tobedefinedinafutureversionofMATLAB%handlesstructurewithhandlesanduserdata（seeGUIDATAclose（gcbf;

functionedit1_Callback（hObject,eventdata,handles

%hObjecthandletoedit1（seeGCBO

%eventdatareserved-tobedefinedinafutureversionofMATLAB%handlesstructurewithhandlesanduserdata（seeGUIDATA

%Hints:

get（hObject,'String'returnscontentsofedit1astext

%str2double（get（hObject,'String'returnscontentsofedit1asadouble

%---Executesduringobjectcreation,aftersettingallproperties.functionedit1_CreateFcn（hObject,eventdata,handles

%hObjecthandletoedit1（seeGCBO

%eventdatareserved-tobedefinedinafutureversionofMATLAB%handlesempty-handlesnotcreateduntilafterallCreateFcnscalled

%Hint:

editcontrolsusuallyhaveawhitebackgroundonWindows.

%SeeISPCandCOMPUTER.

ifispc&&isequal（get（hObject,'BackgroundColor',get（0,'defaultUicontrolBackgroundColor'

set（hObject,'BackgroundColor','white';

end

%---Executesonbuttonpressinpushbutton4.

functionpushbutton4_Callback（hObject,eventdata,handles

%hObjecthandletopushbutton4（seeGCBO

%eventdatareserved-tobedefinedinafutureversionofMATLAB%handlesstructurewithhandlesanduserdata（seeGUIDATA

num=str2num（get（handles.edit1,'String';

den=str2num（get（handles.edit2,'String';

finalvalue=polyval（num,0/polyval（den,0

sys=tf（num,den;

[Kc,p]=rlocfind（sys;

set（handles.Kc,'string',Kc;

X=real（p（1

Y=imag（p（1

set（handles.Xpoint,'string',num2str（X;

set（handles.Ypoint,'string',num2str（Y;

damp=sqrt（X（1,1^2/（X（1,1^2+Y（1,1^2;

Wn=abs（X（1,1/damp;

Tp=pi/（Wn*sqrt（1-damp^2;

overshoot=exp（-pi*damp/sqrt（1-damp^2;

Ts=3/（damp*Wn;

deviation=Wn^2;

set（handles.overshoot,'string',num2str（overshoot;

set（handles.Ts,'string',Ts;

set（handles.Tp,'string',Tp;

set（handles.Wn,'string',num2str（Wn;

set（handles.damp,'string',num2str（damp;

set（handles.deviation,'string',deviation;

functionedit2_Callback（hObject,eventdata,handles

%hObjecthandletoedit1（seeGCBO

%eventdatareserved-tobedefinedinafutureversionofMATLAB%handlesstructurewithhandlesanduserdata（seeGUIDATA

%Hints:

get（hObject,'String'returnscontentsofedit1astext

%str2double（get（hObject,'String'returnscontentsofedit1asadouble

%---Executesduringobjectcreation,aftersettingallproperties.functionedit2_CreateFcn（hObject,eventdata,handles

%hObjecthandletoedit1（seeGCBO

%eventdatareserved-tobedefinedinafutureversionofMATLAB%handlesempty-handlesnotcreateduntilafterallCreateFcnscalled

%Hint:

editcontrolsusuallyhaveawhitebackgroundonWindows.

%SeeISPCandCOMPUTER.

ifispc&&isequal（get（hObject,'BackgroundColor',get（0,'defaultUicontrolBackgroundColor'

set（hObject,'BackgroundColor','white';

end

%---Executesonbuttonpressinpushbutton5.

functionpushbutton5_Callback（hObject,eventdata,handles

%hObjecthandletopushbutton5（seeGCBO

%eventdatareserved-tobedefinedinafutureversionofMATLAB%handlesstructurewithhandlesanduserdata（seeGUIDATA

num=str2num（get（handles.edit1,'String';

den=str2num（get（handles.edit2,'String';

sys=tf（num,den

rltool（sys;%ÀûÓù¤¾ßµ÷Õû¿ØÖÆÆ÷²ÎÊýʹ֮¾-¹ýÖ÷µ¼¼«µã

functionedit4_Callback（hObject,eventdata,handles

%hObjecthandletoedit4（seeGCBO

%eventdatareserved-tobedefinedinafutureversionofMATLAB%handlesstructurewithhandlesanduserdata（seeGUIDATA

%Hints:

get（hObject,'String'returnscontentsofedit4astextw'q%str2double（get（hObject,'String'returnscontentsofedit4asadouble

%---Executesduringobjectcreation,aftersettingallproperties.functionedit4_CreateFcn（hObject,eventdata,handles

%hObjecthandletoedit4（seeGCBO

%eventdatareserved-tobedefinedinafutureversionofMATLAB%handlesempty-handlesnotcreateduntilafterallCreateFcnscalled

%Hint:

editcontrolsusuallyhaveawhitebackgroundonWindows.

%SeeISPCandCOMPUTER.

ifispc&&isequal（get（hObject,'BackgroundColor',get（0,'defaultUicontrolBackgroundColor'

set（hObject,'BackgroundColor','white';

end

%---Executesonbuttonpressinpushbutton6.

functionpushbutton6_Callback（hObject,eventdata,handles

%hObjecthandletopushbutton6（seeGCBO

%eventdatareserved-tobedefinedinafutureversionofMATLAB%handlesstructurewithhandlesanduserdata（seeGUIDATA

%---Executesonbuttonpressinpushbutton7.

functionpushbutton7_Callback（hObject,eventdata,handles

%hObjecthandletopushbutton7（seeGCBO

%eventdatareserved-tobedefinedinafutureversionofMATLAB%handlesstructurewithhandlesanduserdata（seeGUIDATA

%---Executesonbuttonpressinpushbutton8.

functionpushbutton8_Callback（hObject,eventdata,handles

%hObjecthandletopushbutton8（seeGCBO

%eventdatareserved-tobedefinedinafuturevers