Microsoft PowerPoint - 11__ .ppt [ ]
- () ; - Arago - - -
- ; - ;
- ; , , - ;
- ; , , - ; (BLDC ),
→ ; , , ()
, ,
<(induction machine)>
) (induction generator) -
<>
(cage rotor) - -
< >
-
< >
me Pqq 2
=\P → = X
-
ee f 2pw = mm f 2pw = : :
me fPf 2
-
→nPfe 2 =
120602 PNNPfe ==
[RPM]
< 1> :
- -
< 2> :
- ,
< 3>
-
-
< > <>
- : - :
- : flux-cutting action - :
→ →
1820 Arago
- ,
–
- :
–
< 1>
→ , ,
< >
→ cutting .( )
< 1>
→ , ,
< >
→ cutting .( )
< 1>
→ , ,
→ cutting .( )
cutting
cutting
cutting
, cutting
, (slip)
( ) = –
<7> 7.1 - Arago 4(1)
- () :
- :
SN
mN
slipN
N 120 =
∴ (slip) %100´ -
()
–
→
< >
→ ( )
< 4> .
→ cutting
< >
- flux-cutting
< 5> .
→ cutting
< = > < >
↑ (shorting ring)
(shorting ring)
< > < >
<> - <> -
< > < >
<> - <> -
2) ,
3) ,
4)
<> <>
<> <>
1)
2) 2
3) 2 1
∴
:
:
<> <>
mSslip www -=
)
)
<> <>
1w 2w
1)
mSslip www -=
2) SmS swww =-
12 ) 2
<> <>
12 ) 2
<> 1 s
<> 1 =60Hz, s=10% 2 =60X0.1= 6 Hz
+-
p2
.
<> <>
1w 2w
<2 ><1 >
< > ) )
< > ) ) 2 ) 2 ) 1 2
<> <>
2.
- Arago - - ; , -