Đồ án môn học nhà máy thủy điện trường Đại học xây dựng

    
CHƯƠNG I. SỐ LIỆU ĐỀ BÀI
I.1. Bảng số liệu








!
"

#
$

%

&

'(
#

&
)
'(
#


*+


#
$


,
-
*+

-


-


-


.// 01 2/1
.
(3
/100(0 3.0(1 /.(/ 1/ #0(2 /2(40 /(2. /0(31
I.1.1. Bảng quan hệ lưu lượng và mực nước hạ lưu Q = f(Z
hl
)
5

 #0 #0/ #0. #0 #00 #4 #4/ #4. #4 #40 .

#

$

 2 #/ . 2 /1 #0. 13 0
22/

2


− 
67899:;<=1.;2 2
    
CHƯƠNG II. LỰA CHỌN THIẾT BỊ CỦA NHÀ MÁY THỦY ĐIỆN
II.1. Chọn số tổ máy và kiểu loại tuabin
II.1.1. Chọn số tổ máy (z)
− 
  !"#$%&'()*+,$%-
 ./012$%34(3!35&!6078 9:8&:;<=$:
>
 ?%@A@8B8C:$DEF6!<=GD
H@=8:07"#!B&:I$:;0JK!3L3>
 ?&:I$:;6F$'&:I$:;0I%: 'M,&D8D!''(
::KH6'N
− ?%@<=



O,PQ
Chọn số tổ máy z=2  N
tm
=52/2=26 (MW)

II.1.2. Chọn kiểu tuabin
− ?%@=8:
#R


Oη

,PQ
'>8?
 η

:;@3&:;,*8S@η

T>UV0A:"W!6:A>
 
#R
+XOT>UV+X>Y/"Q+XY/TPQ>
− ?$:K=8:
 W60:S'A70:;Z=H÷Z:/V>X[÷+[>UV>
 ?%@=8:
#R
+XY/TPQ
@*A>=BACDE8)F6<)A)G89H I='*J9=BA
CDE8)) >B9*KL/M'N)O#PAQ8G8R)
'68)*))"J99*)S9* <Q8T2M'(4T)O#P(
− ?+$:K=8:&K9!!
 #=8:?\TOVTT]\X
 #=8:##\YOV+T]\X
− 'M&B9(39<=+!6:#=8:
67899:;<=1.;2 /

    
;>B9*U6V))W*9"X>>99HKS9Y(
67899:;<=1.;2 #
    
II.2. Xác định các thông số cơ bản của tuabin
II.2.1. Tuabin CQ40/800-46
2(6Z8"X[%
2

− ?%^H&&'M$9=8:
[

U,V[ _
TB
TB TT TT
N
D
Q H H
η
=
× × × ×
N
'>8?
 Z:;@=8:6:&:K9!*8S>
 `''(abc9!@
/
O>
 Z
##
?S'A9!Z

##
+X>[\>
 
#R
?%@=8:
#R
+XY/T$Q>
[
+XY/T
/,UV 
U,V[ T,UTV [,\ +X,[\ +X,[\
D m= =
× × × ×
@*A>Q8T.'(3O#PNS9)9\*6V)
/([)])FS9*8F)*9*
− ?%^H&&Sa=&8S
[

[
D
Hn
n
bq
=
'>8?
 
[
&Sa=abc(:@^0A:η
=H
>#&Sa=abc&'(

^0A:&Sa=&8S !8DX]Y >dTe/f>

[
[+/0O3g
 Z
8a
S'A81a5<=##,Z
8a
+V>dY

S)

^A_8S9*X
>

A$=
^A_8S9*S9
)9\
S)
A8$=

2*
`#(31 
*
` 230(

2*
` 2(3

/*

` 203(1

2
`.( 

` 2.(

2
` 21(

/
` 2(3
− hJi\3'*
67899:;<=1.;2 .
    
678 
2
 A$=
a #(31 2(3
aa #(31 203(1
aaa .( 21(
a& .( 2(3
#([)]99H9*b>c8=678
− j&&S:;k:;@∆η
∆η`η
*+
Tη
*+
'>8?
 η

#=H
[][]η
"=H

[TY
[
[
T
M
T
M
H
H
D
D
×

 Z
##
l[YT8)a=D'C<=S'A
[T
T
M
H
H
 m
["
T>\X7&'M$9<==8:%1>
 m
[#

&'M$9=8:n>
*6V)"dS9Q'>8Q8*9
η
*+
∆η η


2*
`#(31 (4.# (# (4#0 2(/

2
`.( (4 (#2 (4#4 2(/
>e2(#fgS9*8']9)∆A∆'>8X>(
− j&0470:;<==8: &'M##Z?
 h2&'M
o
[
^0A:Z
:
 ##Z?p!%^
:
[
["
_
H
nD
T
=
 h2&'M
o

[
^0A:Z
=H
 ##Z?p!%^
ax
m
T
H
nD
[
["
_ =
− h2&'M6F%@b!3&:;&'MqR
67899:;<=1.;2 1
    
Jh







=
=
tt
A
MA
tt
T

TA
T
MA
H
Dn
n
HD
N
Q
[
[
+O/
[
+
[
>
_
>>>V[,U
_
η
J







=
=

=H
[
[
+O/
=H
[
+
[
>
_
>>>V[,U
_
H
Dn
n
HD
N
Q
B
MB
T
TB
T
MB
η
'>8?
 
#
,m
[#

,^0A:3'*9!
 PFaD9! !8D
h  %
h 2 A8$= i $
iA8$=

i $
iA8$=

iA8$=
a #(31 2(3 21#1(/ 2//(# 04/( 2( 2##(#
aa #(31 203(1 21#1(/ 2#3( 034(4 22#(/ 21(
aaa .( 21( 2#.4(# 223(. 300(4 4( 2/0(
a& .( 2(3 2#.4(# 2#(. 330(1 23(# 2./(/
-

`/(2. -
*+
`#0(2 -

`/2(40
− h2&'M6F%@b!=8:&'Mq?
chAU6Z8>8>8A<6Z88Fj)6<8D_8*

8kHN
)I6Z8l
%
-

B%(

− h2&'M:A:6%@)@^0A:''(T>Y
#R
.(;@*)W=678
− #K:;\0470:;71&'M##Z?<=$:K=8:>
− j&:;@81a5<==8:<=.3'*p!%^
∑
∑
=
=
+
∆
∆
+
=
n
i
i
i
n
i
ii
bq
S
S
[
[
[
>
+


ηη
η
'>8?
 ∆:73rb:;9s:t=+&'M&:;@η
:
07η
:[
s !
0470:;<==8: &'M##Z?>
67899:;<=1.;2 
    
67899:;<=1.;2 3
    
Q8X99HKS9Y
W>u v w x
w
#R
xHw
#R
w
8a
m[ />dY VV>T
UT>d
0O3 [XX>d VU>T Y+>T VV>Y \XT+>T
UT>T +[[>T VU>Y [VVV\>Y
UT>Y +dU>T UT>/ +Y[dU>V
U[>T dUU>T UT>V d+YTU>/
U[>/ [T+U>T U[>+ U/dU/>\
+/dT>T +[\UXV>U
67899:;<=1.;2 0

    
Q8X99HKS9Y
W>u vv w x
w
#R
xHw
#R
w
8a
m[ />dY Vd>T
UT>\
0O3 [Vd>Y VV>T [V>T Vd>Y [YdY>T
VU>T +T/>T VV>Y [dUXY>Y
UT>T /XU>T VU>Y //T+Y>Y
UT>Y YYT>T UT>/ \UX/d>Y
U[>T VY\>T UT>V ddYTT>Y
U[>/ VYd>T U[>+ dV[[Y>X
+VY[>T +YdV[U>X
67899:;<=1.;2 4
    
Q8X99HKS9Y
W>u vvv w x
w
#R
xHw
#R
w
8a
m[ \ VV>T   
UT>Y

0O3 [YT VU>T U+>T VV>Y V[\+>T
UT>T +U[>T VU>Y +XT\\>Y
UT>Y +XT>T UT>/ +/\XY>T
U[>T \\d>T UT>V \TYXY>/
U[>/ ddX>T U[>+ dTd/+>\
 [VXX>T  [XVU\U>+
67899:;<=1.;2 2
    
Q8X99HKS9Y
W>u vh w x
w
#R
xHw
#R
w
8a
m[ \ Vd>T
UT>\
0O3 [XX>d VV>T U>T Vd>Y dVd>Y
VU>T ++V>T VV>Y +T[dV>T
UT>T /+V>T VU>Y +U/YX>T
UT>Y +TV>T UT>/ [Vdd+>T
U[>T XTT>T UT>V Y\\YT>T
U[>/ V\[>T U[>+ dXXYd>+
++[\>T +TT+TT>d
67899:;<=1.;2 22
    
II.2.2. Tuabin TT45/820-46
X>678@6A<9*%(
2(6Z8"X[%

2

− ?%^H&&'M$9=8:
[

U,V[ _
TB
TB TT TT
N
D
Q H H
η
=
× × × ×
N
'>8?
 Z:;@=8:=:&:K9!*8S>
 `''(abc9!@/O>
 Z
##
?S'A9!Z
##
+X>[\>
 
#R
?%@=8:
#R
+XY/T$Q>
2``.(0N
− mn=07!8DX]\ >dTe/f,ay=&'(

/([)])FS9*8F)*9*
− ?%^H&&Sa=&8S
[

[
D
Hn
n
bq
=
'>8 đó:
 
[
V/0O3g>
 Z
8a
S'A81a5<=##,Z
8a
+V>dY>

S)

^A_8S9*X
>

A$=
^A_8S9*S9
)9\
S)
A8$=


2*
`.( 
*
` 222(#

2*
` 23(2

/*
` 221(.

2
`.(/1 

` 2.(3

2
` 2(

/
` 23(2
− hJi\3'*
678 
2
 A$=
67899:;<=1.;2 2/
    
a .( 23(2
aa .( 221(.

aaa .(/1 2(
a& .(/1 23(2
#([)]99H9*b>c8=678(
− j&&S:;k:;@∆η
∆η`η
*+
Tη
*+
− PFaD9! !8D=
η
*+
∆η η


2*
`.( (4.4 (/0 (4#2 2(/

2
`.(/1 (4.4 (/0 (4#2 2(/
 m!l[>T/8)a=: :;:∆07∆ !9!>
− j&0470:;<==8: &'M##Z?
− h2&'M
o
[
^0A:Z
:
 ##Z?p!%^
:
[
["

_
H
nD
T
=
− h2&'M
o
[
^0A:Z
=H
 ##Z?p!%^
[
["
_  
T
max
nD
H
=

− h2&'M6F%@b!3&:;&'MqR
Jh







=

=
tt
A
MA
tt
T
TA
T
MA
H
Dn
n
HD
N
Q
[
[
+O/
[
+
[
>
_
>>>V[,U
_
η
J








=
=
=H
[
[
+O/
=H
[
+
[
>
_
>>>V[,U
_
H
Dn
n
HD
N
Q
B
MB
T
TB
T
MB

η
'>8?
 
#
,m
[#
,^0A:3'*9!
 PFaD9! !8D
67899:;<=1.;2 2#
    
h  %
h 2 A8$= i $
iA8$=

i $
iA8$=

iA8$=
a .( 23(2 2#3(/ 0#(0 022(4 0(4. 42(.
aa .( 221(. 2#3(/ 4(# 0#2(4 3.(/4 40(1
aaa .(/1 2( 2210( 0#(2 3.#(# 0(. 4(3
a& .(/1 23(2 2210( 04( 311(. 3#(/1 43(2
-

`/(2. -
*+
`#0(2 -

`/2(40
− h2&'M6F%@b!=8:&'Mq?

 'Mo

&'M:A:6Yz%@6:?>
− h2&'M:A:6%@)@^0A:''(T>Y
#R
.(;@*)W=678
− #K:;\0470:;71&'M##Z?<=$:K=8:>
− j&:;@81a5<==8:<=.3'*p!%^
∑
∑
=
=
+
∆
∆
+
=
n
i
i
i
n
i
ii
bq
S
S
[
[
[

>
+

ηη
η
'>8?
 ∆:73rb:;9s:t=+&'M&:;@η
:
07η
:[
s !
0470:;<==8: &'M##Z?>
67899:;<=1.;2 2.
    
Q8X99HKS9Y
P.n I
η
ΔS
ηTB
ΔS x ηTB
ηbq
D1(m) 4 70.0
83.2
n(vg/ph) 107.1 72.0 73.7 71.0 5231.3

74.0 116.5 73.0 8506.0
76.0 165.3 75.0 12396.0
78.0 140.6 77.0 10823.9
80.0 218.1 79.0 17226.7
82.0 218.0 81.0 17658.8

84.0 285.7 83.0 23713.9
86.0 296.0 85.0 25158.3
88.0 285.7 87.0 24857.6
90.0 203.9 89.0 18150.7
91.0 114.3 90.5 10347.8
92.0 196.9 91.5 18016.4
92.1 57.7 92.1 5315.0
2372.5 197402.3
67899:;<=1.;2 21
    
Q8X99HKS9Y
P.n II
η
ΔS
ηTB
ΔS x ηTB
ηbq
D1(m) 4 70.0
82.0
n(vg/ph) 115.4 72.0 108.4 71.0 7694.3

74.0 156.5 73.0 11425.2
76.0 206.8 75.0 15513.0
78.0 142.6 77.0 10981.0
80.0 251.2 79.0 19847.2
82.0 289.2 81.0 23424.4
84.0 442.7 83.0 36743.3
86.0 375.4 85.0 31909.9
88.0 321.1 87.0 27938.3
90.0 232.1 89.0 20656.0

91.0 98.6 90.5 8919.7
92.0 15.2 91.5 1391.7
92.1 0.0 92.1 0.0
2639.8 216443.9
67899:;<=1.;2 2
    
Q8X99HKS9Y
P.n III
η
ΔS
ηTB
ΔS x ηTB
ηbq
D1(m) 4.25 70.0
82.2
n(vg/ph) 100 72.0 70.4 71.0 4997.7

74.0 111.7 73.0 8157.0
76.0 160.1 75.0 12008.3
78.0 143.7 77.0 11063.4
80.0 218.5 79.0 17262.3
82.0 219.9 81.0 17808.7
84.0 270.3 83.0 22436.6
86.0 262.7 85.0 22328.7
88.0 236.8 87.0 20604.2
90.0 150.5 89.0 13392.7
91.0 75.8 90.5 6856.3
92.0 92.6 91.5 8473.8
92.1 1.4 92.1 130.7
2014.4 165520.2

67899:;<=1.;2 23
    
Q8X99HKS9Y
P.n IV
η
ΔS
ηTB
ΔS x ηTB
ηbq
D1(m) 4.25 70.0
80.9
n(vg/ph) 107.1 72.0 101.2 71.0 7188.0
74.0 149.4 73.0 10904.0
76.0 183.5 75.0 13763.3
78.0 121.3 77.0 9337.0
80.0 224.2 79.0 17710.2
82.0 241.3 81.0 19546.1
84.0 377.0 83.0 31291.0
86.0 284.6 85.0 24193.6
88.0 188.7 87.0 16415.2
90.0 107.0 89.0 9518.6
91.0 6.9 90.5 626.3
1985.1 160493.2
67899:;<=1.;2 20
    
mn;op9*X>99HKS9YN)W >B9*%.$0T.(
− ?%
  +>
 'M$9Rj?# m
[

/>dY>
 0{a= [XX>d0O3>
 Z:;@81a5 η
8a
UT>dz>
II.3. Xác định hệ số tỷ tốc
− #p!a36=
OT>Y/X
[\>+X
+XY/Td>[XX[Xd>[
[Xd,[
\OY\OY
phv
H
KwNn
n
TT
T
s
=
×
==
− #p!8D+>X =+Ue/f ==8:Si| 81>
II.4. Xác định tốc độ quay lồng và lực dọc trục
II.4.1. Tốc độ quay lồng:
=H
[
_ >
I l
l

n H
n
D
=
, A8$=
 Z=H,m
[
S'AA@07&'M$9Rj?#<=#=8:>
 o
[
0{a=abc&'(@.&'M&B9a=<=
=8:>0A:=8:?*8S@8s+
!
+H[XX>d///>\0O3>
^9'*
dY>/
X[>/V\>///
=
l
n
`11/(.NA8$=
II.4.2. Áp lực nước tác dụng dọc trục Tuabin
− `nb }&'(H&p!%^
+>+[/X[>/VdY>/
\
Y>T>>
\
>
+
=H

+
[
THDKP =×××==
ππ
'>8?
 P7;nb },H&p!1X]V >V+e/fE^07!;
k

Y/X>T, =PT>Y>
67899:;<=1.;2 24
    
II.5. Chọn cao trình đặt BXCT của tuabin
− ?=! 1&BRj?#<==8::7=! 1&B=8:b'(H&
p!&:I$:;70:;<==8:$%HD =:;'($9n !8@$1
(3S'A,"Z`07%@=8:>
− ?%^H&∇
#

∇
#
eZf

'>8?
 eZf:I=!g9!!3L3>
eZf[T]∇
#
OUTT]P
σ
>σ>Z
##

 *8S@∇
#

:
^0A:YTz
=H[#R

[#R
[[\>[,
/
O
# = &a=;
 T>Y
=H[#R
Yd>+/VT>Y
 P
σ
[>[÷[>YP
σ
[>[
 σZ;$9n@6:&:K9!
#
,Z
##
σT>Y\
 Z
##
+X>[\
 eZf[T]/VT>\OUTT][>[HT>Y\H+X>[\]Y>U
− ?Z≤eZf~Z]X>T

− hJ=! 1&BRj?#<==8:7
∇
T
= -6.0 + 380.5 = 374.5
II.6. Tính toán xác định buồng tuabin
II.6.1. Chọn kết cấu các kích thước cơ bản của buồng tuabin
− R=8:i:;0}&'='A07!8Hp%=$:bc'A
07!8S3J'Ab{=!!@|nC807!8S3J'A
b{8L@>i3}S$9'A07$:K=8:0707!S'A>
− R=8:A1@|n8L':7H5bn6:=!>
P9'A8D'CA:$9'A>
− ?E^07!S'AZ+X>[\07!6:=8:?\T=8=8:
8s8%:Fb:;&=:, r8sT>
− ?$9'A*8D
 •i%ϕ
=H
++Y
!
 ?:I=!8S3J'Ab{p!8D/, =[Ve\fi
8!T>/Vm
[
T>/VH/>dY[>\+Y
II.6.2. Tính toán thủy động xác định kích thước buồng tuabin
− `!6:8H!1=, r8s>
− ?''(9! !&:F$F*8S
#
^0A:
#=H
$:
=8:70:;0A:S'A9!Z

##
>
67899:;<=1.;2 /
    
− '&G9C}vv>Y =[Ui
#
[[\>/
/
O>
− #9!<&S8=8:bn=p!&:I$:;
 `''(&'(358&Ip!0:<=RWZm
 `''(6::Fb:;=^0A:iϕ<=8H!7ϕH
&p!%^
ϕ
#
>ϕO/XT>
/
O
 #:Fb:;<=8=8:6:0 9^0A:iϕ
€ϕϕOh
+

 m:;9:Fb:;<=8=8:6::Fb:;07!7
€
h

ϕ
=H
Oh
h


#
>ϕ
=H
O/XT>h
h
,
+

 h
h
0J 816::Fb:;07!, =8D\ =[Ue\f>
 h
h
\>XO
− h:;9!<&SH&$9'A8=8::F7p!a
J
 J!p0J$%&:h

> !=
 J0J 81 !:Fb:;$%&:
h!!=
m!Z
##
+X>[\l\T9!p!aJ0J$%&:>
     >
 m[/>dY =8D/>[ =/\e/fim=Y>VV
~
=
m=O++>U\,m!\>/X,m

8
Y>[T
 
0

#
>ϕ
=H
O/XT[[\>/H++YO/XTd[>\\
/
O>
 €00Oh0d[>\\O\>X[Y>Y/
+
>
67899:;<=1.;2 /2
L1
L
h4
D3
D4
h3
h6
h5
B5
11°30'
R6
R7
h
    
 •i:θ[T

!
÷[+
!
θ[T
!
>
− RD9!$9'A6:iϕ
ϕ:&S
T \Y UT [/Y [VT ++Y
€:
+
 T>TT [>U\ />VV Y>V+ d>dX U>d[
:
/
O T>TT V>U+ [d>VY +X>dd /Y>d+ \\>Xd
= T>TT [>[T [>YV [>UY +>+X +>Y\
8 [>\/ [>dd +>Y/ />[+ />X+ \>TX
 T>TT T>/\ [>[T [>XU +>[U +>X/
• +>U\ \>T\ \>Y+ \>VU Y>+T Y>\V
II.7. Chọn ống hút
II.7.1. Nhiệm vụ:
− ‚gi:;0}bc'A.=8:H6'0A:@E'(
)@>
− mn=07!;|

Y/X>T0O307!6:=8:?>#p!8D/]\ =\X
e/f,=g!$:K\?,=i$9'A9
mJ98
q
mX)6<))X)*8


2
 ; 
1

.

.


;
2

1
.% #(31 0(/1
2(03
1
0(4/1 .(#00 .(#00 /(231 1(/1 .(1
67899:;<=1.;2 //
    
II.8. Chọn thiết bị điều chỉnh tuabin
II.8.1. Chọn thiết bị dầu áp lực.
− #:F8br3ni:;0}@3br3n!<&:Ik&S
=8:>#:F8br3n8=!81^=br3n,4br,8*br,
*p&:I$:K073}$:;$>#:F8br3n'M&'(F6!0A:
$F@:='$9'A$=bn=p!b981^=br>
K&'(:F8br3n&D8D!&'(r&I =>#=rH&
b981^=br3nbn= b9H:=<=&S*:F3n;
&:Ik=8:>
− ?8'A9!

 En70:;<=&S*:F3nRWZm&'(H&p!%
^
h
-
`"
-
(γ(-
*+
(
>
(
2
/
"r(
'>8?
 γb <='A,γ[TTT$•O
/
 Z
=H
S'A70:;A@,Z
=H
/V>X[
 8
!
:I=!<=8S3J'Ab{,8
!
[>\+Y
 m
[
&'M$9Rj?#,m

[
/>dY>
 $
Zm
;$::;T>T\Y]T>TY,0A:=8:a=
$
Zm
T,T\Y
*))8']'fA>)G8s).(/06V)h
-
`#.(0/+2
#
"r(
− En70:;<=&S*:F3nH&p!%^
q
Rj
$
Rj
>γ(-*+(>(
2
/
LD

/
"r(
'>8?:
 $
Rj
;$:;0A:=8:?$
Rj

T>TY÷T>TX
?$
Rj
T>TY
 b
R
&'M$98rRj?#> =8DX>[, =d[e/fi
D

Om[T>\\~D

T>\\H/>dY[>XY
**)?
h
[
`(1+2+#0(2+2(./1+#(31
/
L2(1
/
`#2(/+2
#
"r(
− m9H:=&S*:F3n&'(H&p!%^
&`h$
#

'>8?
 qEn70:;<=&S*:F3n,q31.2 x10
3
$•>

67899:;<=1.;2 /#
    
 W3@70:;<=81^=br3n
`."r$)
/
`.(2
1
"r$
/
*A>6V)&`N30
#
− m981^=br3n&'(9'=
[V +T \ \,Y
BL HD BX
V V V= ÷ + ÷
'>8?
 h
Zm
m9&S*:F3n<=8S3J'Ab{>
 h
Rj
m9&S*<=8Hp%b4&S*:F3n>
\
bxbx
bx
Sd
V
××
=
π

D
+
`(#÷(.12`tD
+
`(#1+#(31`2(#2(
^
+
`(2/÷(2D
+
`t^
+
`(2/+2(1`(20
*&
+
`(201
#
(
&

`/+(30u.(1+(201`/(#4
#
(
9)9\b>Q8'*8/.O.P
%W"J9d]Dk9= @)-v/N1$2T.T.T/
mJ9d]
Dk9= @)
%)"X)6<))7Q)A'W8 6V8r
KDk9= @) w8Dk9
 -2 2 r - ;  h r
-v/N1$2T

.T.T/
221 ## .# /N/ 2/2 /2 /.2 2./ N2
II.8.2. Chọn máy điều tốc.
− "&:Ii:;0}&:Ik&Sa=<==8:07&:I$:K,
$FF&S70:;<==8:>
− "&:I!6:A'MiS$9'A:y>?$9'A
73}S07!$9'A0=&:I3:9>P:r3D:HL&F
'(bra=0=&:I3:9&F&S*:F3n3D:&D8D!3:%&S
*:F3nKb0A:&Sr3D:i>
− 'M$90=&:I3:9'M@8s&'M$9bcbr07!
0=&:I3:&S*:F3n
vT
V
d
H
>>
>\
bb
!h
π
==
67899:;<=1.;2 /.
    
'>8?
 h
Z
#b9&S*:F3nh
Z
T,TdV
/


 #
b
#M::=&iRWZm,H&p!&:I$:;&:Ik&D8D!
#
b
Y
 0hJbrD !,@0\÷VO>?0XO>
**X6V)D
&
`N10(9)9\6V)DA`
II.9. Chọn máy phát điện
II.9.1. Xác định các thông số cơ bản của máy phát điện.
− j&%@8:K$:F%@!73r<=3&:;
^```##0#4m&h
'>8?
 
#
?%@<=3&:;
 η

Z:;@<=3η

UVz
 !ϕT,VZ;%@
− :;3<=3&:;&'(@p!: 
hA:+T÷YT"hq1&:;3=!ƒ[T>YPh>
− #r@b{&:;#r@b{&:;<=3&:;H!=:I/3=C
'A=a&7YTZ>
− 0{a=<=3&:;3}S07!0{a=<==8:,

b!3&:;:& }0A:=8:b!&i0{a=<==8:„
970{a=<=3&:;,i[XX>d0O3>
− B3n<="W73XTOXTHYTO[XX>d[VB3>
II.9.2. Xác định các kích thước cơ bản của MPĐ.
x9
k
S9*N
A8$=
^
)@)
/=
%G89H
9
9H
η
y
Gb
r
/
/
6Z8"X^*> 'W8 6V8
J9
"d^N
m&h
-z9
)G8
Nm,


'>8



*
8>
{G>
>
F
2 / # . 1  3 0 4 2 22
%1$
21T#
2(3 # .1 #
43(2
1
./ 141 3.1 /2 .2
− ?E^07!0{a=[XX>d0O307%@8:K$:F//V/U
Phq># !8D =!6:3&:;F6!…$%i$:K3
&:;7!i%@34(30A:r>m!&i=3&:;r0A:
r@,3&:;?RXYTO[TT]/Xi%$†J'=
− m!3&:;7i0{a= 40A:0{a=<==8:
'%@$%34(30A:%@:F$F>m!&i=3D::F7
:F$F3&:;A:H@3.3&:;$:K?RXYTO[YT]/Xi
%'=
67899:;<=1.;2 /1