, , , (. .7.4):
Ed = U + I xd; (7.1)
Ed = U + I xd, (7.2)
Ed, Ed ;
U ; U ; I ; xd, xd , .
. 7.4 .
(7.1) (7.2) I :
(7.3)
U + (7.4)
:
U = Ed = Ed 1 (7.5)
U = Ed = Ed 2 (7.6)
1 = ; 2= ;
( ) :
S. ; S. - ; ( ). = 5÷7
U U (. 1 7.3 ) U
U1 = U + (U - U) t/T, (7.7)
- .
U2 ( 2 .7.3.) ()
u = ir + L , (7.8)
u - , .
u ( ) .7.3 . t.
ir ir = u. r (.. ),
t= u + , dir - u; = L/r
:
t= u + (7.9)
d . , u/ d = n =const.
(7.9) d
d = [ t (1- -t/T)] (7.10)
, U2 =1 d
|
|
U2 =1 [ t (1- -t/T)] (7.11)
3 ( .7.3 ) (7.7) (7.12).
U3 = U1 + U2 = U + (U - U) t/T + 1 [ t (1- -t/T)] (7.12)
t (7.12) () . U3 =1 t.
, , , . , . , u .
.
1. ?
2. ?
3. ?. ?
4. ?