Cong thuc

BC

II .=

C

bhB

I

kI =

C

B

I

I > 5,12,1 =bh

k

B

C

FE

I

I

h =

==

2

00

)(2

1).(

1dudttu

T

U

d

T

dd

=

2

0

)(2

1diI

dd

dsdBA

Pk

SS

S .2

21 =+

=

AC

111 .IUS = 1A

=

=m

i

ii

IUS

1222

0

1

U

U

k

m

dm

= An 1K KC

Kn

AnAAA

>>>> ....321

KCA

>1

==== 222 45.02

sin22

1)(

2

1UUdUduU

dd

d

d

d

R

U

I =dtbv

II = 22 2UU m =

22 9.022

UUU

d

==

d

d

d

R

U

I =

2d

tbv

I

I = I 2max 2UU ngV =

22

90

30

22

90

30

34,263

)]120sin(sin[2

6)(

621

UUdUUduuU

o

o

o

o

o

mmbad

====

2

)cos1(2sin2

2

1)(

2

122

2

0

2

+=== UdUdUU d

220 45,02

UUU

d

==

)(2

)cos1(00

fUUU

ddd

=+

=

2

cos19,0

2

)cos1(20

+=

+= UUU

dd

1 2

2

)cos1(

2

)cos1(22sin2

1)(

2

1022

2

0

+=

+=== ddd UUdUdUU

20 9,0 UU d =

3

)30(.1

3

)30(.1

2

63

)]30(.1[2

23sin2

2

1)(

2

1

02

22

2

0

2

o

d

o

o

d

sCo

U

sCo

U

scoUdUdUU

++=

++=

++===

( 2.24)

sCoUdUU

oo

o

d

.2

63)(2

2

32

12030

30

2 == ++

+

(2.25)

20 34,2. UsCoUU dd == (2.29)

2

)60(.1

2

)60(.16332

302

60

2

o

d

o

d

sCo

U

sCo

UdSinUU

o

++=

++==

+

(2.30)

2

cos19,0

2

)cos1(20

+=

+= UUU

dd

( 2.89)

d

d

d

R

U

I

=

ddTtb

IdII

==

22

1. ( 2.91)

ddDtb

IdII + +

==

0

. 22

1 ( 2.92)

CosUCosUU

tiadd 20 17,1. ==

200 17,1 UUU tiadd ==

)cos1(17,1)cos1( 20 +=+= UUU tiadd

2

134,2

2

120

Cos

U

Cos

UU

Caudd

+=

+=

Chng

)(2

2sin

)2cos1(2

2)sin2(

1

2

1

1

212

0

21

2

0

21

fU

d

U

dUduU

t

=+

=

===

( 3.67)

)2

2sin(

+=P

P (3.68)

2sin.PQ = (3.69)

+==

)cos1(sin1

R

U

d

R

U

I

mm

t

(3.70)

2

2sin

2sin)(

1 22

+== R

U

d

R

U

I

mm (3.71)

d

di

LRLU

m

...sin += ( 3.72)

tg

m

eA

Z

U

i

+= .)sin()( ( 3.73)

22 )( LRz +=

R

L

arctg

=

=

tg

m

e

z

U

i ).sin()sin()(

tg

e

=+ ).sin()sin( (3.74)

.1

0

E

T

EEdt

T

U

R

=== (3.1)

==1

0

11 )(1

t

T

Idtti

T

I

(3.35)

t

L

UE

Iti

t

+= min1 )( (3.29)

t

L

U

Iti

t+= max2 )( (3.30)

==T

t

tD

Idtti

T

I

1

)1()(1

2 (3.36)

EUU

DT

==

P

t

T

P

P = (3.37)

Ch dng in gin on

im gii hn gia lin tc v gin on tng ng vi iu kin : I min = 0.

fL

E

I

tgioihan .2

)1( = ( 3.38)

Gi tr in cm gii hn:

fI

E

L

tgh

gioihan .2

)1( = (3.39)

Khong dn in gii hn:f

gioihan

..21 =

Trong :t

R

L

=

Quan h:

E

fLI

E

U

t

t

.22

2

=

(3.43) Vi:

dtt

L

U

T

L

UE

T

dt

L

UE

T

I

t t

ttt

t

+

=

1 2

0 0

1 .11

Ngoi vng gii hn l vng dng in lin tc m t bng quan h:

ttt

IREU .. = (3.44)

tT

II .1

= (3.56)

==1

t

LD

I

II

(3.57)

200

)1(1

=

RIE

U

t

t

(3.58)

0

20

max 4 RI

E

U

t

t

= (3.61)

=1

. 0EU

t

(3.68)

t

E

U

t

sin4

(4.24a)

).sin(4

22

+

= tXR

E

i

tt

t

(4.25a)

=

1

.).sin(2

1

t

mT

tdtII

(4.26)

I =1

.).sin(2

1 t

t

mD

tdtII

(4.27)

)2ln21(3

.

=

ct

t

UR

TE

C

(4.280

t

t

t

R

L

T =

EdttUU

Pp 3

2)(

2

1 2

0

2 ==

( 4.29)

tSinEtu

A

..3

2)( = (4.30)

)120.(.3

2)( o

B

tSinEtu =

)240.(.3

2)( o

C

tSinEtu =

o

o

UU 5sin2 2= (6.7)

t

C

I

dtI

C

U

C

t

CC ==0

1 (6.8)

12

2 TCR

E

UU

C

== (6.9)

22

2 TCR

E

UU

C

== (6,10)

ConstI

R

E

I

CR

===

t

RC

E

dt

R

E

C

dtI

C

UU

t t

CCR

=

=

==

0 0

11 (6.11)

t

RC

U

RC

U

ttdU

RC

U

mm

t

mR

cos.sin1

0

=

= (6.12)

RC

U

U

m

cd

=

t

RC

U

U

m

R

cos=

21

C

B

I

I = (6.19)

B

V

B

IK

U

R

.=

& &

tUU

mRC

cos)1( =

dkm

UU =cos

m

dk

U

U

ar cos= (6.1)

dk

m

d

dd

U

U

U

UU

00 cos == ( 6.3)

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