30
1. - - - . 2. -- . 3. - , - .
, . 5.1.
. 5.1 -
- w(t), (t) i(t) - - .
1. , , . U1 f1.
- , , , ( - ), . - . ( 78) - -
= J∑dω/dt (5.1)
w(t) M(t) . M(w) M(w), (5.1).
- L = 0 (L (-)
, .. -
(J);) .
) , - M = const, M = const (.. U1).
. 5.2 - - () () = const Mc = const
(.5.1) w , = (.5.2) - ( ) t = 0 -, . 5.2, .
(5.1) :
(1 )
t = 0, w = w : w = .
:
(5.2)
w < w < w , . . w = w w() . = 1.
- .5.2,. - t , (5.2) w = w t:
(5.3)
, (5.1) dt :
, . . - - .
t - -, J (.5.3,). - ( ) ( ) (5.3), :
. 5.3 - - () - w(t) M(t)
|
|
t, - ( .5.3,). ( . 5.3,), .
(.. - lek 5; 78; Elektroprivod 195.). f1 U1 - -, w - -. - - .
) = const, M w, b < 0.
(elektroprivod -191) -- , - - oo - . -- -
= J∑dω/dt (1)
- - ypa
= β(ω0 ω). (2)
(1) (2) ypa, - , - -
β(ω0 ω) = J∑dω/dt → . (3)
2. (.. - lek 5) , . , ,
, TM = J∑/β
-- .
- (.5.5).
. 5.5 --
(5.3)
, , . , w = w0 .
- - -- . , J , .
/β Δω, (ω0 /β) ω -, (.8.3,).
.8.3 -:1. 2 -
- - (Moskolenko_Elektricheskiy_privod 110 ):
.
- ,
, (5.8)
, - , . (5.8)
, (5.10)
- (. 8.3).
.
1. , .
2. t = 0,632 .
3. t = 3 0,95 . , t = 3 .
(5.10) , .
-, - , J∑ (5.8). -, (.8.3,):
|
|
ω= 0: ( ≡ )
, - - .
1 2 - -, (. 5.6).
:
w :
w = w1, w = w2;
= 1, = 2
.5.6
(5.10) -
ω = (ω1 ω2)e-t/T + ω2 ;
M = (Mc1 Mc2)e-t/T + Mc2 ;
(.5.6).
- L = 0 (L ()
- (-). , , ( -); - (J), . - - - . 5.11 .
) ) ) )
. 5.11 ) - - -;
) - - -
.5.11 ( -) (-). , , u, .
.5.11 . , , u, .