我搞SVPWM电机调速,看资料。我看到计算电压矢量扇区号,计算出扇区号以后,应该再做什么呢?
程序里根据N=4*C+2*B+A,计算出扇区后,再做什么呢?程序里我只看懂计算扇区的部分。其他看不懂。
比如下面一段是什么意思?
if (Sector==0) // Sector 0: this is special case for (Ualpha,Ubeta) = (0,0)
{
v->Ta = _IQ(0.5);
v->Tb = _IQ(0.5);
v->Tc = _IQ(0.5);
}
if (Sector==1) // Sector 1: t1=Z and t2=Y (abc —> Tb,Ta,Tc)
{
t1 = Vc;
t2 = Vb;
v->Tb = _IQmpy(_IQ(0.5),(_IQ(1)-t1-t2)); // tbon = (1-t1-t2)/2
v->Ta = v->Tb+t1; // taon = tbon+t1
v->Tc = v->Ta+t2; // tcon = taon+t2
}
else if (Sector==2) // Sector 2: t1=Y and t2=-X (abc —> Ta,Tc,Tb)
{
t1 = Vb;
t2 = -Va;
v->Ta = _IQmpy(_IQ(0.5),(_IQ(1)-t1-t2)); // taon = (1-t1-t2)/2
v->Tc = v->Ta+t1; // tcon = taon+t1
v->Tb = v->Tc+t2; // tbon = tcon+t2
} else if (Sector==3) // Sector 3: t1=-Z and t2=X (abc —> Ta,Tb,Tc)
{
t1 = -Vc;
t2 = Va;
v->Ta = _IQmpy(_IQ(0.5),(_IQ(1)-t1-t2)); // taon = (1-t1-t2)/2
v->Tb = v->Ta+t1; // tbon = taon+t1
v->Tc = v->Tb+t2; // tcon = tbon+t2
} else if (Sector==4) // Sector 4: t1=-X and t2=Z (abc —> Tc,Tb,Ta)
{
t1 = -Va;
t2 = Vc;
v->Tc = _IQmpy(_IQ(0.5),(_IQ(1)-t1-t2)); // tcon = (1-t1-t2)/2
v->Tb = v->Tc+t1; // tbon = tcon+t1
v->Ta = v->Tb+t2; // taon = tbon+t2
} else if (Sector==5) // Sector 5: t1=X and t2=-Y (abc —> Tb,Tc,Ta)
{
t1 = Va;
t2 = -Vb;
v->Tb = _IQmpy(_IQ(0.5),(_IQ(1)-t1-t2)); // tbon = (1-t1-t2)/2
v->Tc = v->Tb+t1; // tcon = tbon+t1
v->Ta = v->Tc+t2; // taon = tcon+t2
} else if (Sector==6) // Sector 6: t1=-Y and t2=-Z (abc —> Tc,Ta,Tb)
{
t1 = -Vb;
t2 = -Vc;
v->Tc = _IQmpy(_IQ(0.5),(_IQ(1)-t1-t2)); // tcon = (1-t1-t2)/2
v->Ta = v->Tc+t1; // taon = tcon+t1
v->Tb = v->Ta+t2; // tbon = taon+t2 }
ccb bcc:
高手指教啊,谢谢!