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# RE: [femm] Induction Motor in FEMM

- To: <femm@yahoogroups.com>
- Subject: RE: [femm] Induction Motor in FEMM
- From: "Lovrenc Gasparin" <lovrencg@email.si>
- Date: Wed, 18 Sep 2002 18:10:02 +0200
- Importance: Normal
- In-reply-to: <20020918074056.80039.qmail@web20909.mail.yahoo.com>

Sen d me your model of induction motor wich have a massive rotor.

Here is the lua script for calculation the current in the slots.
calculation the current
i=180 -- curren the pik value!!!
--- calculation right values fo faze 1 (U), faze 2 (V), faze 3 (W)
i1p_r=i*cos(0) -- faze 1
i1p_i=i*sin(0)
i1m_r=-i*cos(0)
i1m_i=-i*sin(0)
i2p_r=i*cos(120) -- faze 2
i2p_i=i*sin(120)
i2m_r=-i*cos(120)
i2m_i=-i*sin(120)
i3p_r=i*cos(240) -- faze 3
i3p_i=i*sin(240)
i3m_r=-i*cos(240)
i3m_i=-i*sin(240)
--- t he lua skrip for applaing currents in slots
n1=1
n2=5
n3=9
n1a=13
n2a=17
n3a=21
for j=0,4-1,1 do
d=d_zun_utori/2 ---faza 1 plus
kot=360/n_stator
xzg=d*sin(kot*j)
yzg=d*cos(kot*j)
addblocklabel(xzg,yzg)
addcircprop("I"..n1,i,0,0,0,0)
selectlabel(xzg,yzg)
setblockprop("Cu",0,0,"I"..n1,0,7)
modifycircprop("I"..n1,1,i1p_r)
modifycircprop("I"..n1,2,i1p_i)
clearselected()
n1=n1+1
d=d_zun_utori/2 ---faza 1 minus
kot=360/n_stator
xzg=d*sin(kot*j+12*kot)
yzg=d*cos(kot*j+12*kot)
addblocklabel(xzg,yzg)
addcircprop("I"..n1a,i,0,0,0,0)
selectlabel(xzg,yzg)
setblockprop("Cu",0,0,"I"..n1a,0,7)
modifycircprop("I"..n1a,1,i1m_r)
modifycircprop("I"..n1a,2,i1m_i)
clearselected()
n1a=n1a+1
d=d_zun_utori/2 ---faza 2 minus
kot=360/n_stator
xzg=d*sin(kot*j+4*kot)
yzg=d*cos(kot*j+4*kot)
addblocklabel(xzg,yzg)
addcircprop("I"..n2,i,0,0,0,0)
selectlabel(xzg,yzg)
setblockprop("Cu",0,0,"I"..n2,0,7)
modifycircprop("I"..n2,1,i2m_r)
modifycircprop("I"..n2,2,i2m_i)
clearselected()
n2=n2+1
d=d_zun_utori/2 ---faza 2 plus
kot=360/n_stator
xzg=d*sin(kot*j+16*kot)
yzg=d*cos(kot*j+16*kot)
addblocklabel(xzg,yzg)
addcircprop("I"..n2a,i,0,0,0,0)
selectlabel(xzg,yzg)
setblockprop("Cu",0,0,"I"..n2a,0,7)
modifycircprop("I"..n2a,1,i2p_r)
modifycircprop("I"..n2a,2,i2p_i)
clearselected()
n2a=n2a+1
d=d_zun_utori/2 ---faza 3 plus
kot=360/n_stator
xzg=d*sin(kot*j+8*kot)
yzg=d*cos(kot*j+8*kot)
addblocklabel(xzg,yzg)
addcircprop("I"..n3,i,0,0,0,0)
selectlabel(xzg,yzg)
setblockprop("Cu",0,0,"I"..n3,0,7)
modifycircprop("I"..n3,1,i3p_r)
modifycircprop("I"..n3,2,i3p_i)
clearselected()
n3=n3+1
d=d_zun_utori/2 ---faza 3 minus
kot=360/n_stator
xzg=d*sin(kot*j+20*kot)
yzg=d*cos(kot*j+20*kot)
addblocklabel(xzg,yzg)
addcircprop("I"..n3a,i,0,0,0,0)
selectlabel(xzg,yzg)
setblockprop("Cu",0,0,"I"..n3a,0,7)
modifycircprop("I"..n3a,1,i3m_r)
modifycircprop("I"..n3a,2,i3m_i)
clearselected()
n3a=n3a+1
end

> -----Izvorno sporočilo-----
> Od: mohamed karakache [mailto:mkarakdz@yahoo.fr]
> Poslano: 18. september 2002 9:41
> Za: femm@yahoogroups.com
> Zadeva: RE: [femm] Induction Motor in FEMM

> I work on an induction motor wich have a massive rotor.(the are not slots)

> i want to ask you how did you calculate the current in the slots for your model and please send me the schema of winding.have try to calculate the inductances and find the torque allure

> thx

> Lovrenc Gasparin <lovrencg@email.si> a écrit :

> > motor is Al cage squirel.
> > U is in slots 1,2,3,4, and 13,14,15,16
> > V is in slots 5,6,7,8, and 17,18,19,20
> > W is in slots 9,10,11,12, and 21,22,23,14
> > I can send you a shema of winding.
> > Do you have a working model of your motor. Coud you send me your model?
> > Lovrenc

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- References:
  - RE: [femm] Induction Motor in FEMM
    - From: mohamed karakache <mkarakdz@yahoo.fr>

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