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重庆大学自控原理课程设计实验报告 - 百度文库

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  • 2025/5/22 21:12:51

Matlab£bodeͼ num=[2.6705];

den=[0.0102125 0 -0.26705]; bode(num,den) grid

ͼԿϵͳԣΪ0㣬ϵͳҪԣΪ50㡣

\??????? ??5??12? mǰǵļ㹫ʽΪ

17

ȡ??10?Եõ?m?60? ɹʽ??1?sin?mɵõ??13.93

1?sin?mɹʽL(?m)??10lg???11.44 ɵõ?m?31.5 rad/s T?1?1?0.009

31.513.931365.14(s?7.98)

s?111?m?УװõĴݺΪGc(s)?УϵͳĴݺΪG(s)Gc(s)?0.02725?1365.14(s?7.98)

(s?111)(0.0102125s^2?0.26705)5.3 MatlabнԾӦ

Уϵͳbodeͼο˹ͼ֤ϵͳȶԣ

Bodeͼmļд£

num=[0.02725*1365.14 0.02725*1365.14*7.98]; den1=[0.0102125 0 -0.26705]; den2=[1 111];

den=conv(den1,den2); sys=tf(num,den); bode(sys) Grid

18

ο˹ͼmļд£

num=[0.02725*1365.14 0.02725*1365.14*7.98]; den1=[0.0102125 0 -0.26705]; den2=[1 111];

den=conv(den1,den2); sys=tf(num,den); nyquist(sys) grid

bode ͼпԿ,ϵͳҪԣȺͷֵԣȣο˹ͼпԿ-1 ʱһȦУϵͳȶ

6 PID

ݺG0(s)?2.6683?(s)0.02725??

V(s)0.0102125s2?0.26705s2?26.149327ƻPIDʹУϵͳָ㣺

󳬵?p%?15%

ʱ䣺ts?2s(2%

SIMULINKģ:

19

6.1 ƹ

PIDPȡP=20I=0D=0õԾӦߣ

1.41.210.80.60.40.2000.511.522.533.544.55

ͼпԿϵͳԾӦʵȷ񵴡Ϊϵͳ񵴣PID΢ֿƲD

ȡP=20I=0D=10õԾӦ£

20

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Matlab£bodeͼ num=[2.6705]; den=[0.0102125 0 -0.26705]; bode(num,den) grid ͼԿϵͳԣΪ0㣬ϵͳҪԣΪ50㡣 \??????? ??5??12? mǰǵļ㹫ʽΪ 17 ȡ??10?Եõ?m?60? ɹʽ??1?sin?mɵõ??13.93 1?sin?mɹʽL(?m)??10lg???11.44 ɵõ?m?31.5 rad/s T?1?1?0.009 31.513.931365.14(s?7.98) s?111?m?УװõĴݺΪGc(s)?У

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