E=sym('E');U=sym('U');m=sym('m');p=sym('p');Xd=sym('Xd');Xq=sym('Xq');R1=sym('R1');T=sym('T');
W=sym('W');x=sym('x');
g=sym('T-(m*p*E*U*sin(x))/(p*W*Xd)-(m*p*U^2*(1/Xq-1/Xd)*sin(2*x))/(2*p*W)');
g1=subs(g,[E,U,m,p,Xd,Xq,R1,T,W],[Es,Us,3,6,1.384,1.167,0.041,ii+9,jj]);
fff=solve(g1,'x');
ff=subs(fff);
总是在解方程的时候出错，有的时候是倒数第二句，有的时候是倒数第三句
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