《现代永磁同步电机控制原理及MATLAB仿真》随书仿真模型

%u（1）为参考电压的幅值；u（2）为参考电压的角度；u（3）为PWM的采样周期； %Ta相当于书中的T4，Tb相当于书中的T6 function [sf]=svpwm(u) %===初始化==== sa=0; sb=0; sc=0; ts=0.0002; vdc=700; peak_phase_max = vdc/sqrt(3); x=u(2); y=u(3); mag=(u(1)/peak_phase_max) * ts; %===扇区I==== if (x>=0) && (x<pi/3) ta = mag * sin(pi/3-x); tb = mag * sin(x); t0 =(ts-ta-tb); t1=[t0/4 ta/2 tb/2 t0/2 tb/2 ta/2 t0/4]; t1=cumsum(t1); v1=[0 1 1 1 1 1 0]; v2=[0 0 1 1 1 0 0]; v3=[0 0 0 1 0 0 0]; for j=1:7 if(y<t1(j)) break end end sa=v1(j); sb=v2(j); sc=v3(j); end %===扇区II==== if (x>=pi/3) && (x<2*pi/3) adv= x-pi/3; tb = mag * sin(pi/3-adv); ta = mag * sin(adv); t0 =(ts-ta-tb); t1=[t0/4 ta/2 tb/2 t0/2 tb/2 ta/2 t0/4]; t1=cumsum(t1); v1=[0 0 1 1 1 0 0]; v2=[0 1 1 1 1 1 0]; v3=[0 0 0 1 0 0 0]; for j=1:7 if(y<t1(j)) break end end sa=v1(j); sb=v2(j); sc=v3(j); end %===扇区III==== if (x>=2*pi/3) && (x<pi) adv=x-2*pi/3; ta = mag * sin(pi/3-adv); tb = mag * sin(adv); t0 =(ts-ta-tb); t1=[t0/4 ta/2 tb/2 t0/2 tb/2 ta/2 t0/4]; t1=cumsum(t1); v1=[0 0 0 1 0 0 0]; v2=[0 1 1 1 1 1 0]; v3=[0 0 1 1 1 0 0]; for j=1:7 if(y<t1(j)) break end end sa=v1(j); sb=v2(j); sc=v3(j); end %%===扇区IV==== if (x>=-pi) && (x<-2*pi/3) adv = x + pi; tb= mag * sin(pi/3 - adv); ta = mag * sin(adv); t0 =(ts-ta-tb); t1=[t0/4 ta/2 tb/2 t0/2 tb/2 ta/2 t0/4]; t1=cumsum(t1); v1=[0 0 0 1 0 0 0]; v2=[0 0 1 1 1 0 0]; v3=[0 1 1 1 1 1 0]; for j=1:7 if(y<t1(j)) break end end sa=v1(j); sb=v2(j); sc=v3(j); end % %===扇区V==== if (x>=-2*pi/3) && (x<-pi/3) adv = x+2*pi/3; ta = mag * sin(pi/3-adv); tb = mag * sin(adv); t0 =(ts-ta-tb); t1=[t0/4 ta/2 tb/2 t0/2 tb/2 ta/2 t0/4]; t1=cumsum(t1); v1=[0 0 1 1 1 0 0]; v2=[0 0 0 1 0 0 0]; v3=[0 1 1 1 1 1 0]; for j=1:7 if(y<t1(j)) break end end sa=v1(j); sb=v2(j); sc=v3(j); end %%===扇区VI==== if (x>=-pi/3) && (x<0) adv = x+pi/3; tb = mag * sin(pi/3-adv); ta = mag * sin(adv); t0 =(ts-ta-tb); t1=[t0/4 ta/2 tb/2 t0/2 tb/2 ta/2 t0/4]; t1=cumsum(t1); v1=[0 1 1 1 1 1 0]; v2=[0 0 0 1 0 0 0]; v3=[0 0 1 1 1 0 0]; for j=1:7 if(y<t1(j)) break end end sa=v1(j); sb=v2(j); sc=v3(j); end sf=[sa, sb, sc]; end