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ÇëÎÊsimulinkÖгöÏÖÕâ¸ö´íÎóÔõô½â¾ö£¿ÇóÖ¸½Ì¡£ Error in 'CSTR_ISMCO/S-Function' while executing MATLAB S-function 'CSTR_sFun', flag = 1 (derivatives), at time 0.0. ÊÔͼ·ÃÎÊ u(2)£»ÓÉÓÚ numel(u)=1£¬Ë÷Òý³¬³ö·¶Î§¡£ Component: Simulink | Category: Block error ¸ÃÄ£¿éÔ³ÌÐòÈçÏ function [sys,x0,str,ts]=mdlInitializeSizes sizes = simsizes; sizes.NumContStates = 4; sizes.NumDiscStates = 0; sizes.NumOutputs = 3; sizes.NumInputs = 2; sizes.DirFeedthrough = 0; sizes.NumSampleTimes = 1; % at least one sample time is needed sys = simsizes(sizes); x0 = [0.5 3 0 0]; str = []; ts = [0 0]; function sys=mdlDerivatives(t,x,u) u=u(1); filter=u(2); %***********CSTR parameters************** alfa=1.0; beta=0.3; gamma=20; b=-8.0; Da=0.072; alfa1=0.5; alfa2=0.5; %system states x1=x(1); x2=x(2); xx1=x(3); xx2=x(4); y=x2; %************* dynamic equation ********************** dx1=-alfa*x(1)+Da*(1-x(1))*exp(gamma*x(2)/(gamma+x(2))); dx2=-alfa*x(2)-b*Da*(1-x(1))*exp(gamma*x(2)/(gamma+x(2)))+beta*u-beta*x(2); sys(1)= dx1; sys(2)= dx2; %********** observer ********** xxx1=xx1-alfa2*filter/(-b*Da*exp(gamma*xx2/(gamma+xx2))); dxx1=-alfa*xx1+Da*(1-xx1)*exp(gamma*xx2/(gamma+xx2))+alfa1*sign(xxx1-xx1); dxx2=-alfa*xx2-b*Da*(1-xx1)*exp(gamma*xx2/(gamma+xx2))+beta*u-beta*xx2+alfa2*sign(y-xx2); sys(3)=dxx1; sys(4)=dxx2; function sys=mdlOutputs(t,x,u) y=x(2); f=sign(y-x(4)); sys(1)=x(3); sys(2)=x(4); sys(3)=f; |
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