三相異步電機機械特性MATLAB仿真報告(共7頁)

1、精選優(yōu)質(zhì)文檔-傾情為你奉上評分：_課程報告電機與拖動基礎學 院 機自學院 專 業(yè) 電氣工程及其自動化學 號 學生姓名 張紫靚課程 電機與拖動基礎電機與拖動基礎報告一、 固有機械特性及降壓Matlab程序如下：固有機械特性：U1=220;m=3;p=3;f1=50;R1=2.08;R20=1.53;X1=3.12;X20=4.25;s=-0.4:0.0001:1.5;n0=60*f1/p;n=n0-s*n0;T=(m*p*U12*R20./s)./(2*pi*f1*(R1+R20./s).2+(X1+X20)2);title('故有機械特性')xlabel('電動機轉(zhuǎn)速n

2、/(r/s)')ylabel('電動機轉(zhuǎn)矩T/(N*M)')plot(T,n);plot(-T,-n);hold on;MATLAB仿真圖像：降壓：m=3;p=3;f1=50;R1=2.08;R20=1.53;X1=3.12;X20=4.25;s=0:0.0001:1.5;n0=60*f1/p;n=n0-s*n0;for k=1:3 if k=1; U1=220;else if k=2; U1=200; else U1=150; end end T=(m*p*U12*R20./s)./(2*pi*f1*(R1+R20./s).2+(X1+X20)2);title(

3、9;故有機械特性')xlabel('電動機轉(zhuǎn)速n/(r/s)')ylabel('電動機轉(zhuǎn)矩T/(N*M)')plot(T,n);hold on;endMATLAB仿真圖：二、定子串電阻程序：U1=220; m=3;p=3;f1=50;R20=1.53;X1=3.12;X20=4.25;s=0:0.0001:1.5;n0=60*f1/p;n=n0-s*n0;for k=1:3 if k=1; R1=2.08;else if k=2; R1=5.08; else R1=10.08; end end T=(m*p*U12*R20./s)./(2*pi*f1*(

4、R1+R20./s).2+(X1+X20)2); title('故有機械特性')xlabel('電動機轉(zhuǎn)速n/(r/s)')ylabel('電動機轉(zhuǎn)矩T/(N*M)')plot(T,n);hold on;end MATLAB仿真圖：三、定子串電抗：程序：U1=220; m=3;p=3;f1=50;R1=2.08;R20=1.53; X20=4.25;s=0:0.0001:1.5;n0=60*f1/p;n=n0-s*n0;for k=1:3 if k=1;X1=3.12; else if k=2;X1=6.12; elseX1=10.12; end

5、 end T=(m*p*U12*R20./s)./(2*pi*f1*(R1+R20./s).2+(X1+X20)2); title('故有機械特性')xlabel('電動機轉(zhuǎn)速n/(r/s)')ylabel('電動機轉(zhuǎn)矩T/(N*M)')plot(T,n);hold on;endMATLAB仿真圖：四、 轉(zhuǎn)子串電阻U1=220; m=3;p=3;f1=50;R1=2.08;X1=3.12;X20=4.25;s=0:0.0001:1.5;n0=60*f1/p; n=n0-s*n0;for k=1:5 if k=1;R20=1.53;else if k=2;R20=3.53; else if k=3R20=5.53; else if k=4 R20=7.53; else k=5 R20=10.53; end end end end T=(m*p*U12*R20./s)./(2*pi*f1*(R1+R20./s).2+(X1+X20)2); title('故有機械特性')xlabel('