function [sys,x0,str,ts] =f2(t,x,u,flag)
switch flag,
case 0,
[sys,x0,str,ts]=mdlInitializeSizes;
case 1,
sys=mdlDerivatives(t,x,u);
case 3,
sys=mdlOutputs(t,x,u);
case {2,4,9}
sys=[];
otherwise
error(['Unhandled flag = ',num2str(flag)]);
end
function [sys,x0,str,ts]=mdlInitializeSizes
sizes = simsizes;
sizes.NumContStates = 2;
sizes.NumDiscStates = 0;
sizes.NumOutputs = 3;
sizes.NumInputs = 4;
sizes.DirFeedthrough = 1;
sizes.NumSampleTimes = 1;
sys = simsizes(sizes);
x0 = [2 0.1];
str = [ ];
ts = [0 0];
function sys=mdlDerivatives(t,x,u)
ou=1.2;pi=3.1415926;R=47.5;
jw=6250000;Ng=80;wg=122.9;
jg=15;prx=3000000;
V=u(1);
%输入参考的风速
%betar=u(2)
%Tref=u(3)
%输入参考的桨距角
ut=u(4);
lmd=(x(2)*R)/V;
%根据叶尖速比求出lmd,x(2)为wr,x(3）为发电机扭矩Tg
cp=(0.44-0.0167*x(1))*sin(pi*(lmd-3)/(15-0.3*x(1)))-0.00184*(lmd-3)*x(1);
%cp=c1*((c2/lmdi)-c3*x(1)-c4)*exp(-c5/lmdi)+c6*lmd;
tb=0.2;
%设置时间常数
pa=0.5*cp*ou*pi*(R^2)*(V^3);
wls=wg/Ng;
Ta=0.5*ou*pi*cp*R^3*V^2;
Tls=Kls*(fir-fils)+Bls*(x(2)-wls);
sys(1)=ut/tb-x(1)/tb;
sys(2)=(Ta-Tls-Br*x(2))/Jr;
sys(3)=(Tref-x(3))/tb;
function sys=mdlOutputs(t,x,u)
sys(1)=x(1); %输出桨距角beta
sys(2)=x(2); %输出转速wr
sys(3)=x(3); %输出发电机扭矩Tg
