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本帖最后由 biligjs 于 2010-11-9 20:24 编辑 ) o/ W( |9 P, _
$ M* e- z i% q+ vBPA潮流计算结果中,每条线路最后都会有一项QC,比如,Bus1到BusA最后一项是4.7QC,这个项到底代表的是什么意思?
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' T8 } [3 [/ B. G' t- s另外下面SUMMARY OF SYSTEM QUANTITIES FOR ZONE 01中,有一项是LINE INJECTION (QC) 72.3,这个72.3是上面潮流计算中所有的QC项相加的结果,这一项代表什么意思?如果将这一项加进去的话,无功似乎无法平衡了。
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3 I* [( ], e: U" v2 a$ T在SYSTEM INJECTION: 中SUBTOTAL (INJECTION) 3.4 -23.5 显示系统缺少23.5Mvar的无功,为什么下面LINE AND TRANSFORMER LOSSES -3.4 23.5 这一项却显示是正值。显示正值是不是说明这项是线路的分布电容所发出的无功?如果指的是线路的分布电容所发出的无功,那么恰好可以补偿上面系统所缺少的无功。这样子的话那项72.3又要做何解释?
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请高手解答下?
" y4 x/ K& j7 W# W======================系统自带的IEEE9节点算例程序=================================8 } w9 j4 F$ b7 I
(POWERFLOW,CASEID=IEEE9,PROJECT=IEEE_9BUS_TEST_SYSTEM)& }5 R7 s) Q8 j1 y2 s% h
/SOL_ITER,DECOUPLED=2,NEWTON=15,OPITM=0\% u ]# X/ @) a' i4 c& |! W
/P_INPUT_LIST,ZONES=ALL\
6 j# X7 i8 {% V/P_OUTPUT_LIST,ZONES=ALL\
( \& A4 |# M3 x( e1 ^: r0 A$ x% j; H/RPT_SORT=ZONE\
% @( g5 G0 U0 \7 F" y/NEW_BASE,FILE=IEEE90.BSE\
) }& O) |9 v4 Q, b& @& B) ~/PF_MAP,FILE = IEEE90.MAP\
2 _2 i0 z, O/ z5 ?- v0 B9 L/NETWORK_DATA\
& ?! f' R- V0 N+ ?BS Gen1 16.501 999. 999. 1.01 g# z# c' Y5 d4 C/ E! A2 u9 F& ~
B Bus1 230.01 4 K; v& K7 {0 c
B BusA 230.01 125. 70.0 20. % E, j, g1 l* j0 S" p( c1 X5 M' S
B BusB 230.01 90. 40.0 10. 8 t/ ~( `) [) N$ `$ N9 J
B BusC 230.01 100. 55.0 20. 000 # ^; _! r/ i" T: R) `% \3 R
B Bus2 230.01 35.0 10.0 ) j1 @% `) h( [0 V
BE Gen2 18.001 163. 999 1.011 g) V Q6 a* D1 q. s0 W
B Bus3 230.01
; K; j; G9 C% p! Q8 s9 LBE Gen3 13.801 85. 999. 1.01. v2 h" J7 @8 x4 v" @6 V& v" f
.L ----------------- transmission lines ----------------------------: G: O# V! N7 G
L Bus1 230. BusA 230. .0100 .0850 .0440( e# M$ @" w0 Z. C3 H
.L Bus1 230. BusA 230.2 .0100 .0850 .0440+ G2 ^7 Y3 l2 ]0 f. I: Q/ u" ?, Z
L Bus1 230. BusB 230. .0170 .0920 .0395
; W8 \' w1 j" n+ S9 Z( qL BusA 230. Bus2 230. .0320 .1610 .0765
8 K9 ?3 L; n0 K! @$ h# t9 JL BusB 230. Bus3 230. .0390 .1700 .08955 G3 K7 s# }! Z8 X8 t
L Bus2 230. BusC 230. .0085 .0720 .03725
3 z) \* a5 X6 FL BusC 230. Bus3 230. .0119 .1008 .05225
6 z0 B m8 L% T0 @6 f6 W.T ----- transformers ---------
# B- G( p( U, \6 O/ X# V& GT Gen1 16.5 Bus1 230. .0567 16.5 242.% `/ J8 m8 K. I1 T- Q
T Gen2 18.0 Bus2 230. .0625 18.0 242.
8 C' M5 m/ H- D/ ]# uT Gen3 13.8 Bus3 230. .0586 13.8 242.; H* I& D1 D9 k! G" u+ Y. h9 Z7 i
(END)
1 G* q- m, J1 P& s3 P! @=====================计算结果================================
* I! l; c! X% r% j5 _ Z0 HBus1 230.0 238.9KV/ -3.4 ZONE 01 0.0PLOAD 0.0QLOAD 1.039PU KV BUS TYPE , X0 l9 r; r$ ^" u7 J& c) E U
BusA 230.0 01 62.5PIN 29.2QIN 0.4682PLOSS -5.22QLOSS 4.7QC ) L+ A5 k) G3 D0 M) \
BusB 230.0 01 43.0 7.2 0.3116 -6.70 4.3 $ V' `% d' e8 T$ M& @' Z1 Z1 H
Gen1 16.5 01 -105.4 -36.4 0.0000 7.24 242.0/ 16.5
* R0 N2 E0 u& V5 n% Y8 {( w/ S& ` 0.0PNET 0.0QNET
$ A z# P6 S/ D/ \6 ?Bus2 230.0 239.9KV/ -0.7 ZONE 01 35.0PLOAD 10.0QLOAD 1.043PU KV BUS TYPE
0 I( Y: ?8 j9 S- @$ ^* t5 d8 V3 c( p BusA 230.0 01 64.3PIN 5.7QIN 1.2735PLOSS -9.66QLOSS 8.3QC * o% `7 R2 U; U! D; O
BusC 230.0 01 63.7 5.7 0.3246 -5.27 4.1 5 y0 r/ P% F8 C$ |0 g+ B8 f9 d
Gen2 18.0 01 -163.0 -21.4 0.0000 17.19 242.0/ 18.0
: U% K' B! X( @ W -35.0PNET -10.0QNET % N, [8 |* Q( H6 S0 ^, B" B
Bus3 230.0 242.3KV/ -1.3 ZONE 01 0.0PLOAD 0.0QLOAD 1.053PU KV BUS TYPE 8 D1 B. Z9 C+ |! ^7 `, ^" y
BusB 230.0 01 48.2PIN 0.0QIN 0.8515PLOSS -15.57QLOSS 9.9QC 9 g+ U [7 \1 {9 S3 P3 U
BusC 230.0 01 36.8 12.9 0.1826 -9.82 5.8 - f D( Z4 W- |* j
Gen3 13.8 01 -85.0 -12.9 0.0000 4.32 242.0/ 13.8
, }/ i9 x( X% H7 @, l 0.0PNET 0.0QNET
6 b% V1 _. y) S h9 n' \+ f% HBusA 230.0 231.4KV/ -6.2 ZONE 01 125.0PLOAD 70.0QLOAD 1.006PU KV BUS TYPE
4 I, _3 C1 |! A- X% L( z( U Bus1 230.0 01 -62.0PIN -34.4QIN 0.4682PLOSS -5.22QLOSS 4.5QC
1 M8 A7 D9 a( Y R- J0 a% j$ R Bus2 230.0 01 -63.0 -15.3 1.2735 -9.66 7.7
* x9 J" h! k8 V4 N Z+ j% J- a 20.2QUSED 20.2QCAP SCHEDULED
7 W0 v/ q/ n- B6 Q% _ -125.0PNET -49.8QNET 9 \% B/ L- C0 Y, O0 M% F4 R
BusB 230.0 235.1KV/ -5.5 ZONE 01 90.0PLOAD 40.0QLOAD 1.022PU KV BUS TYPE $ l! W* e( u9 H% I, f l! F6 L
Bus1 230.0 01 -42.6PIN -13.9QIN 0.3116PLOSS -6.70QLOSS 4.1QC + {3 ~. h( v2 U- o8 B3 W
Bus3 230.0 01 -47.4 -15.6 0.8515 -15.57 9.4
% O9 M! ~# Q! G" j/ y5 a _ 10.4QUSED 10.4QCAP SCHEDULED
$ q) |2 p3 a# k/ `. k -90.0PNET -29.6QNET 0 ~. H8 ?' x3 V2 R. q: N
BusC 230.0 237.3KV/ -3.1 ZONE 01 100.0PLOAD 55.0QLOAD 1.032PU KV BUS TYPE
# u4 F P8 { r; P Bus2 230.0 01 -63.4PIN -11.0QIN 0.3246PLOSS -5.27QLOSS 4.0QC 8 n. h4 M7 e, \# \
Bus3 230.0 01 -36.6 -22.7 0.1826 -9.82 5.6 & [, ^6 }6 |3 |/ z Z+ W+ i7 f; v
21.3QUSED 21.3QCAP SCHEDULED
1 ?" ?3 X+ W [5 s* x4 J. ? -100.0PNET -33.7QNET . o: M2 x' s$ w# Y( o* q
Gen1 16.5 16.7KV/ 0.0 ZONE 01 105.4PGE 43.7QCOND 0.0PLOAD 0.0QLOAD 1.010PU KV BUS TYPE S 2 K0 C6 R% ^* M- h
Bus1 230.0 01 105.4PIN 43.7QIN 0.0000PLOSS 7.24QLOSS 16.5/242.0
% C9 P7 |: P1 \6 y- s$ E* w 105.4PNET 43.7QNET -893.6 SLACK ADJ + c6 K A/ z3 ~( B' _. ~2 S
Gen2 18.0 18.2KV/ 5.1 ZONE 01 163.0PGE 38.6QCOND 0.0PLOAD 0.0QLOAD 1.010PU KV BUS TYPE E ' D$ G3 |5 z& b' J4 S, k/ c0 }
Bus2 230.0 01 163.0PIN 38.6QIN 0.0000PLOSS 17.19QLOSS 18.0/242.0
# [5 P l4 t7 I8 r 163.0PNET 38.6QNET ) [8 y* X: v1 C) [" Y$ f
Gen3 13.8 13.9KV/ 1.5 ZONE 01 85.0PGE 17.2QCOND 0.0PLOAD 0.0QLOAD 1.010PU KV BUS TYPE E 3 e9 L [2 p1 h0 M3 H/ z& Y( l
Bus3 230.0 01 85.0PIN 17.2QIN 0.0000PLOSS 4.32QLOSS 13.8/242.0 / }# L. n$ a4 O" ~
85.0PNET 17.2QNET
4 I$ J1 X# \& U+ S, }( p SUMMARY OF SYSTEM QUANTITIES FOR ZONE 01
3 c' n' X3 K; ~ GENERATION LOAD LOSSES SHUNT QC ! `6 C( Y0 X$ N) m- C! W- n
MW MVAR MW MVAR MW MVAR MW MVAR MVAR
) X- y* [# s* i# N) [: { 353.4 99.5 350.0 175.0 3.4 -23.5 0.0 52.0 72.3
+ ]; ~4 L# J: v; b- sOUTPUT CHECK --- LINE EXPORT SUMS LINE IMPORT SUMS LINE LOSSES % \" v% c: X* p* u3 k! J
3.4 -23.5 3.4 -23.5 3.4 -23.5
; b1 h: g3 s! _* x) G0 C& T0 i SUMMARY OF SYSTEM TOTALS (MW) (MVAR)
8 [1 D* z' f8 h$ x5 ? V& D. [ SYSTEM INJECTION:
& E9 S' Y, B5 e/ [: O- n5 ` GENERATION 353.4 99.5 / m7 t: c0 W8 x! l# I3 D
LOAD -350.0 -175.0
/ e) `' E- i' s BUS SHUNT ADMITTANCE 0.0 52.0
9 l( l3 T C: s% ^6 h UNSCHEDULED SOURCES 0.0 0.0 6 f. c/ F, b; `) R& W
SUBTOTAL (INJECTION) 3.4 -23.5 : Q: X( u/ s/ m
SYSTEM LOSSES:
, o3 C$ `) G+ e2 u EQUIVALENT SHUNT ADMITTANCE 0.0 0.0 + u9 j; e8 {8 K* D5 s
LINE AND TRANSFORMER LOSSES -3.4 23.5 % s0 d2 w* W9 J& a
LINE INJECTION (QC) 72.3
/ Z+ ^7 \4 [+ z( B- W, Q. g# z DC CONVERTER LOSSES 0.0 0.0
1 V5 o! c# A+ ^ }# B0 Z SUBTOTAL (LOSSES) -3.4 23.5
2 {4 W9 K% T; Y8 i& p3 r NET SYSTEM EXPORT: 0.0 0.0 |
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