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本帖最后由 biligjs 于 2010-11-9 20:24 编辑
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BPA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？- t6 Y5 m# o1 r2 I
0 G: o1 @3 `5 J* r7 J+ R0 ]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。- N7 A& r( a; G4 b
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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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2 N1 t! Q: B) g( H请高手解答下？) Y* T2 }1 L$ a/ L# w
＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝系统自带的IEEE9节点算例程序＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝: c! C( Q U" y3 p6 p
(POWERFLOW,CASEID=IEEE9,PROJECT=IEEE_9BUS_TEST_SYSTEM)1 `. ^3 i+ \ F' D% ~, g
/SOL_ITER,DECOUPLED=2,NEWTON=15,OPITM=0\
2 e0 e) s" u! S0 N& {4 j, \/ T0 t/P_INPUT_LIST,ZONES=ALL\
Y0 ~, N* p) C; p4 r; A/P_OUTPUT_LIST,ZONES=ALL\3 f D! `( C; ~7 y* C2 L& T2 K: ~
/RPT_SORT=ZONE\/ x6 p1 T( \/ d7 I
/NEW_BASE,FILE=IEEE90.BSE\- P M' T5 K) i/ t! t6 m
/PF_MAP,FILE = IEEE90.MAP\) t) `2 q$ ?- Q# p
/NETWORK_DATA\
" F. y) m& V7 {% @: I# g$ `BS Gen1 16.501 999. 999. 1.015 x2 H1 @8 h; j/ y
B Bus1 230.01 9 q$ F3 w5 u( \6 j$ J' n5 C
B BusA 230.01 125. 70.0 20.
+ Q, L6 s9 y1 N( o( KB BusB 230.01 90. 40.0 10.
# t+ \" v: Z+ y2 z3 h8 |0 iB BusC 230.01 100. 55.0 20. 000 - L r4 x; R l6 }6 M) d, V
B Bus2 230.01 35.0 10.0 + e3 ?* Q' z# u1 E( W: A1 f
BE Gen2 18.001 163. 999 1.01
/ r6 X' I$ _% g, L$ x% r4 W' c, p3 sB Bus3 230.01 ; _+ i9 R% ]* ~7 A+ E
BE Gen3 13.801 85. 999. 1.01* j- ?& Q$ M3 @5 z, Q
.L ----------------- transmission lines ----------------------------0 [3 I* H. n2 ~
L Bus1 230. BusA 230. .0100 .0850 .0440& G' v% Z8 D" S
.L Bus1 230. BusA 230.2 .0100 .0850 .0440
2 C/ W* H: W3 g+ E% v. O& @L Bus1 230. BusB 230. .0170 .0920 .0395( ] C5 q+ ]8 Y0 _7 {: v
L BusA 230. Bus2 230. .0320 .1610 .0765
* L1 l. E! m. @L BusB 230. Bus3 230. .0390 .1700 .0895
( p* x7 U! S1 Z$ s: yL Bus2 230. BusC 230. .0085 .0720 .03725
* x* o3 t2 i5 J% a3 o* V5 r3 l( TL BusC 230. Bus3 230. .0119 .1008 .05225
1 n: t; ~6 F' C2 W.T ----- transformers ---------
2 G# O0 k; A( p9 l5 ]T Gen1 16.5 Bus1 230. .0567 16.5 242.
3 s, x# |8 i7 z+ f7 [. x- C8 cT Gen2 18.0 Bus2 230. .0625 18.0 242.: |- z$ o# ` Z4 w! g2 Z
T Gen3 13.8 Bus3 230. .0586 13.8 242.
- T+ g! \ H8 i(END)
+ H; e( S% \* F# @6 d2 _7 i＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝计算结果＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝
8 P1 m9 O6 a; x1 e; [Bus1 230.0 238.9KV/ -3.4 ZONE 01 0.0PLOAD 0.0QLOAD 1.039PU KV BUS TYPE
( w' j/ i. u4 l. d( e9 D8 P: ^1 g BusA 230.0 01 62.5PIN 29.2QIN 0.4682PLOSS -5.22QLOSS 4.7QC
( p& n4 @# D/ p; \& T7 K BusB 230.0 01 43.0 7.2 0.3116 -6.70 4.3
5 [9 H8 n* [( k. ?3 M7 y Gen1 16.5 01 -105.4 -36.4 0.0000 7.24 242.0/ 16.5 % Y# M7 w8 h9 y9 U; m) M, @* w2 N
0.0PNET 0.0QNET 2 R) W3 W& s n1 x: m3 G
Bus2 230.0 239.9KV/ -0.7 ZONE 01 35.0PLOAD 10.0QLOAD 1.043PU KV BUS TYPE
$ z7 O! y+ V- o7 R BusA 230.0 01 64.3PIN 5.7QIN 1.2735PLOSS -9.66QLOSS 8.3QC
4 ^# i( I, n% U BusC 230.0 01 63.7 5.7 0.3246 -5.27 4.1 . y% C3 e+ Z5 J6 W; T
Gen2 18.0 01 -163.0 -21.4 0.0000 17.19 242.0/ 18.0 . @/ j2 {6 C4 z
-35.0PNET -10.0QNET 5 \ _9 P( r5 C6 k3 u3 J
Bus3 230.0 242.3KV/ -1.3 ZONE 01 0.0PLOAD 0.0QLOAD 1.053PU KV BUS TYPE
: s3 C* s0 X- W2 r0 h% X6 d+ B BusB 230.0 01 48.2PIN 0.0QIN 0.8515PLOSS -15.57QLOSS 9.9QC
; J: R! J4 y" ~! ?+ `. R- B! Z BusC 230.0 01 36.8 12.9 0.1826 -9.82 5.8 8 V. i- I6 p. U6 u" k
Gen3 13.8 01 -85.0 -12.9 0.0000 4.32 242.0/ 13.8
\) Q4 b6 k8 q0 H3 |; T% m 0.0PNET 0.0QNET 4 `6 e0 Y' Q2 U
BusA 230.0 231.4KV/ -6.2 ZONE 01 125.0PLOAD 70.0QLOAD 1.006PU KV BUS TYPE
E- q0 M5 y1 O& B$ k Bus1 230.0 01 -62.0PIN -34.4QIN 0.4682PLOSS -5.22QLOSS 4.5QC
( y3 c7 l. o: r1 i( O1 C Bus2 230.0 01 -63.0 -15.3 1.2735 -9.66 7.7
0 J9 R: }, D6 H) ]; @& M7 _! ? 20.2QUSED 20.2QCAP SCHEDULED
( M& Z' {7 d& _1 O0 g p0 k0 \$ H' t -125.0PNET -49.8QNET
% c. Y. |4 H8 f/ T, MBusB 230.0 235.1KV/ -5.5 ZONE 01 90.0PLOAD 40.0QLOAD 1.022PU KV BUS TYPE
' f9 y- r. K5 t8 c& r7 H p- t Bus1 230.0 01 -42.6PIN -13.9QIN 0.3116PLOSS -6.70QLOSS 4.1QC
! K* D; L& i# X" z4 o/ Q Bus3 230.0 01 -47.4 -15.6 0.8515 -15.57 9.4 ' x G* y7 V; a9 X. c1 O
10.4QUSED 10.4QCAP SCHEDULED
M2 j4 t. e- {1 n3 a4 N -90.0PNET -29.6QNET " V! z2 M$ p' G( |
BusC 230.0 237.3KV/ -3.1 ZONE 01 100.0PLOAD 55.0QLOAD 1.032PU KV BUS TYPE 5 _ f9 h0 P7 H
Bus2 230.0 01 -63.4PIN -11.0QIN 0.3246PLOSS -5.27QLOSS 4.0QC
: ]. I6 Q! N) I9 u0 F Bus3 230.0 01 -36.6 -22.7 0.1826 -9.82 5.6
4 B' j7 o7 I9 N1 B! N" U. ?" x0 y 21.3QUSED 21.3QCAP SCHEDULED * A8 s5 g1 J1 ~' I9 L' i, l
-100.0PNET -33.7QNET
- D$ M3 |4 [9 f6 X0 L" C) nGen1 16.5 16.7KV/ 0.0 ZONE 01 105.4PGE 43.7QCOND 0.0PLOAD 0.0QLOAD 1.010PU KV BUS TYPE S
' {0 {0 a% l6 r$ i& e; z Bus1 230.0 01 105.4PIN 43.7QIN 0.0000PLOSS 7.24QLOSS 16.5/242.0 / N6 C- n: J( O: h
105.4PNET 43.7QNET -893.6 SLACK ADJ
5 j! o% t4 g/ ]- ?Gen2 18.0 18.2KV/ 5.1 ZONE 01 163.0PGE 38.6QCOND 0.0PLOAD 0.0QLOAD 1.010PU KV BUS TYPE E ' _3 a. D z. u- ?
Bus2 230.0 01 163.0PIN 38.6QIN 0.0000PLOSS 17.19QLOSS 18.0/242.0 ]0 f; e, ?8 N0 s+ ^3 G# ]
163.0PNET 38.6QNET
4 J2 u: u% r# i n- C" p* XGen3 13.8 13.9KV/ 1.5 ZONE 01 85.0PGE 17.2QCOND 0.0PLOAD 0.0QLOAD 1.010PU KV BUS TYPE E
' q4 Q: _* x1 @2 g% i* P& D+ m+ [ Bus3 230.0 01 85.0PIN 17.2QIN 0.0000PLOSS 4.32QLOSS 13.8/242.0
! w' o6 F! }: F; F 85.0PNET 17.2QNET * _6 G- b7 J$ }5 C- r: G
SUMMARY OF SYSTEM QUANTITIES FOR ZONE 01 * y- u8 Q2 ^7 M4 C6 y2 V, w
GENERATION LOAD LOSSES SHUNT QC : q; A a* |) t8 Y
MW MVAR MW MVAR MW MVAR MW MVAR MVAR
5 t" E" I7 g$ q$ G( P* q 353.4 99.5 350.0 175.0 3.4 -23.5 0.0 52.0 72.3 2 U" k5 [) v, T8 Z4 ]3 o
OUTPUT CHECK --- LINE EXPORT SUMS LINE IMPORT SUMS LINE LOSSES
4 t! }+ T) Z) P% W7 e$ K) A 3.4 -23.5 3.4 -23.5 3.4 -23.5
5 @0 y, x' d( w SUMMARY OF SYSTEM TOTALS (MW) (MVAR) % n( E( _1 T, n, S. ~* Y+ z0 R
SYSTEM INJECTION:
* ~& N& b' L$ q. V2 K6 P) \8 Q GENERATION 353.4 99.5
- {9 t) M3 h+ H. b/ [- e5 k) y$ M LOAD -350.0 -175.0 8 M7 K' I+ R8 _- d2 V# w: T6 W
BUS SHUNT ADMITTANCE 0.0 52.0
4 {: a! s$ L% u% z2 x6 U( d6 E UNSCHEDULED SOURCES 0.0 0.0 ( b- s J- R' s
SUBTOTAL (INJECTION) 3.4 -23.5
, i: p+ V, K( l0 z8 a SYSTEM LOSSES:
* k/ h! c9 _+ Q! X+ e EQUIVALENT SHUNT ADMITTANCE 0.0 0.0 2 f! k* b7 B1 |% b2 o q4 V6 c
LINE AND TRANSFORMER LOSSES -3.4 23.5 7 f4 m3 S, \! w0 d
LINE INJECTION (QC) 72.3 , L8 T6 s2 W: ?# Z2 i% s# u! [
DC CONVERTER LOSSES 0.0 0.0
' N/ o6 }1 g4 b5 ~ SUBTOTAL (LOSSES) -3.4 23.5 1 P2 E- `- J1 s7 {5 Z$ O8 @
NET SYSTEM EXPORT: 0.0 0.0 |
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