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7/24/2019 btdai q.doc

1/19

H v tn SV: Phan Th L QuynGio vin hng dn:Lp: !H" PGS#TS Ph$%V&n H'a

BI TP DI MN NGN MCH

06

Cho s HT nh sau:

ND1B1 D1

D3

TN

B2

ND2

D4 B3 TD

D2

Thng s:

N1, N2 : Sm= 75MVA !m= 10,5"V Cos= 0,# $ = $2= 0,1%6 T&'

T : Sm= 117,7MVA !m= 1(,#"V Cos= 0,#5 $ = $2= 0,21 T&'

)1, )2 : Sm= #0MVA !m= 10,5*115"V !N+ = 10,5+

)( : Sm= 125MVA !m= 1(,#*2%2"V !N+ = 11+

TN : Sm= 125MVA !m= 2(0*121*1(,#"V

! = 11+ ! = (1+ ! = 1+

&1: %5"m &2: 2("m &(: %0"m &%: #0"m

C- % ./ u 3 40= 0,%*"m, $"h= (,5$h

(3)


2/19


1 Ch8n S9= 100MVA, !9= !9 ;< s ha h?

2 )@?n @ s B .nD n D@-n

( TEnh .FnD nDGn mh @ = 0,2s

% $ Inh < BJ .FnD @ Ku L m < s ha h?

Ch8n S9= 100 MVA BJ !9= !9 ;< Y 10,5"V 1(,#"V 115"V 2(0"VTa 3 s ha h? [a \@ @]n nh sau:

U@ I @]n "hnD ^ Enh nh sau:


3/19


1%7,0

75

1001%6,0__71 ====

m

cb

d

S

SXXX

1(1(,0#0100

1005,10

100

+

1

62 =

===

mB

cbN

S

SUXX

1(61,0115

100%5%,0

2210( ===

b

cb

U

S!"X

066,0115

1002(%,0

2220% ===

b

cb

U

S!"X

5 0 ( 2 2

1000, % %0 0,1210

115

cb

b

SX " !

U= = =

Y+5,111(111Y5,0+++Y5,0+ =+=+= HT

N

HC

N

TC

N

C

N UUUU

Y+5,0(1111Y5,0+++Y5,0+ =+=+= HC

N

HT

N

TC

N

T

N UUUU

Y+5,1111(1Y5,0+++Y5,0+ =+=+= TC

N

HT

N

HC

N

H

N UUUU

0125100

1000

100

+# =

==

mTN

cb

C

N

S

SUX

+ 11,5 1000,020

100 100 125

CN cb

mTN

U SX

S

= = =

0(02,02(0

100#0%,05,05,0

2

(

%010 ===mB

cb

S

S!"X

0##,0125100

10011

100

+

(

11 =

==mB

cbN

S

SUX

17#%,07,117

10021,0__12 ===

mT#

cb

dS

S"X

2 )@?n @ s ha h? B .nD n D@-n:

)@?n @ am D@ (,%,5 ` sao 1(,1%,15


4/19


( % 5

( %1(

% 51%

0,1(61 0,066 0,1210 0,(267

0,1(61 0,066 0,0200,(267

0,066 0,1210,025#

0,(267

D X X X

X XXD

X XX

D

= + + = + + =

= = =

= = =

050%,0(267,0

121,01(61,05(15 =

=

=

D

XXX

16 1 2

17 6 7 16

1# # 10 11 12

0,1%7 0,1(1( 0,(260

0,(260

0 0,02 0, 0(02 0,0## 0,17#% 0,(##6

X X X

X X X X

X X X X X X

= + = + =

= + = =

= + + + + = + + + + =

Ta 3 s nD nD:


5/19


1 15 1# 0,050% 0,(##6 0,%(0X X X= + = + =

20 1% 17 0,025# 0,(260 0,(51#X X X= + = + =

)@?n @ sao 1(,1,20 hJnh am D@ h@?u 21,22

1( 2021 1( 20

1

1( 122 1( 1

20

0,020 0,(5150,020 0,(515 0,%0%0

0,%(

0,020 0,%(00,020 0,%(0 0,50%2

0,(515

X XX X X

X

X XX X X

X

= + + = + + =

= + + = + + =

S :


6/19


16 212( 12

16 21

22

0,(260 0,%0%00,1#0%

0,(260 0,%0%00,50%2

N#

dT#

X XX X

X XX X

= = = =

+ += =

S ha h? n D@-n:

( $ Inh .FnD nDGn mh @ h@ @bm =0,2s

U@- sc 9an Ku \ d nDGn mh m


7/19


117,70,50%2 0,5(%

100

mT# dT#

cb

SX X

S

= = =

Ta nD onD Enh on [a m .FnD @]n nDGn mh @ @bm nDGn mh nD B\@ =0,2s J:

( ) ( ) ( )0, 2 0, 2 0, 2 2, 0((% 1, 00%5 (, 0(7N C'ND C'TDI I I ()= + = + =

% $ Inh < BJ .FnD @ Ku L m


8/19


%&FnD nDGn mh @ Ku L m n, NDhIh, 'hOnD

a S ha h? h L Thu>n: nh s nDGn mh ( n nhnD "hOnD 3 su; @]n RnD k


9/19


S ha h? h L 'hOnD:

TEnh @ @]n "hnD ho nD ./ :

$(l= (,5$(= (,50,1(61 = 0,%76%

$%l= (,5$%= (,50,066 = 0,2%(6

$5l= (,5$5= (,50,1210 = 0,%2(5

$10l= (,5$10= (,50,0(02 = 0,1057

2%

+ 1,5 1000,1560

100 100 125

HN cb

mTN

U SX

S

= = =

2 )@?n @ s B .nD n D@-n:

a S ha h? n D@-n h L Thu>n: nh s Enh nDGn mh (


10/19


9S ha h? n D@-n h L NDhIh:

)@?n @ nh s Enh nDGn mh ( < sonD sonD ha@ nhnh N12 BJ T

$ = $25= $2(** $22=2( 22

2( 22

X XX X+

= 0,1#0% 0,50%2 0,1(20,1#0% 0,50%2

=+

S* + h,- h. *n g&/n h0 1 Ngh4ch

S ha h? n D@-n h L 'hOnD:

)\ 1:


11/19


$2= $ $10l $11= 0,02 0,1057 0,0## = 0,2#57

)@?n @ (l, %l, 5l hJnh sao 26, 27, 2#

& = $(l $%l $5l= 0,%76% 0,2%(6 0,%2(5 = 1,1%(5

1015,01%(5,1

2%(6,0%76%,0_%_(26 =

=

=

D

XXX

002,01%(5,1

%2(5,02%(6,0

176%,01%(5,1

%2(5,0%76%,0

_5_%2#

_5_(27

=

=

=

=

=

=

D

XXX

D

XXX

)\ 2:


12/19


$(0= $2# $6= 0,002 0,1(125 = 0,2215

$(1=$2**$2%= 100,0156,02#57,0156,02#57,0

=

+

$(2= $27 $(1= 0,176% 0,100 = 0,277(


13/19


$((= $(0** $(2= 12(1,0277(,02215,0277(,02215,0

=

+

$(%= $(( $26 =0,12(1 0,1015 =0,22%6

S ha h? n D@-n h L "hOnD

$(5 = $2** $(% = #02,022%6,01(1(,022%6,01(1(,0

=

+

( TEnh .FnD nDGn mh s@Pu Qu R @ @bm nDGn mh:

Vj nDGn mh 2


14/19


2((6 2(

22

22(7 22

2(

$ 0,0511 0,1#0%0,0511 0,1#0% 0,2%#

$ 0,50%2$ 0,50%2 0,0511

$ $ 0,50%2 0,0511 0,6#1$ 0,1#0%

XX X X

XX

= + + = + + =

= + + = + + =

Tho


15/19


Su a: a20

1

2 0

0,0#25,05 2,(01(

0,0#2 0,1(2,

XI

X X

= = =

+ +

b 4 Inh .FnD Ku L [a m


16/19


Sao " 3 OnD h

122

0,50%22,(01( 1,6%

0,1#0% 0,50%2

N#,I = =

+

&FnD nhnh


17/19


( )1 2 21,(022 1,6# 2,1((%N#c7I = + =

&nD n BI 3 Pn J:

1 1 1002,1((% 11, 7(0#Y ( ( 10, 5

N# N# cb

C c7

b

SI I ()

U= = =

9 TEnh @]n


18/19


!A= !)= !C=10,5

6,0622

( (

dmU

(9= =

`'h@ nDGn mh:&FnD @]n BJ @]n < Ku L m


19/19

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