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本帖最后由 biligjs 于 2010-11-9 20:24 编辑
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$ h; [' k# s9 v- y% F6 z) NBPA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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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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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 R9 i) d |. n5 f6 A. m请高手解答下？
. h: a( P) N9 L! r. r＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝系统自带的IEEE9节点算例程序＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝
" _. Z# Y9 C8 Z! v! H# u; Y(POWERFLOW,CASEID=IEEE9,PROJECT=IEEE_9BUS_TEST_SYSTEM)
4 D: \. z2 N( `4 A! l& S+ a$ N/SOL_ITER,DECOUPLED=2,NEWTON=15,OPITM=0\
: ?3 T) m0 g' Y' T& l+ a/P_INPUT_LIST,ZONES=ALL\
% P3 y5 \7 s& E% x. N( O5 K/P_OUTPUT_LIST,ZONES=ALL\
8 b/ C2 ]' ? X5 u! m/RPT_SORT=ZONE\
9 S" |. x" ?$ B, ~/NEW_BASE,FILE=IEEE90.BSE\+ a1 \9 x3 r, S) ~+ j
/PF_MAP,FILE = IEEE90.MAP\
# B" f8 b4 t+ A8 t. k4 H/NETWORK_DATA\' g3 T- m$ G/ d' b
BS Gen1 16.501 999. 999. 1.01
% Q0 w9 z# r0 U b7 R8 \B Bus1 230.01 3 x) z* w, ?- }1 C) C
B BusA 230.01 125. 70.0 20. 2 `% X! x5 Q% u7 ~$ T% H
B BusB 230.01 90. 40.0 10.
' p/ z* z! _4 B% L9 W- Q. @2 PB BusC 230.01 100. 55.0 20. 000
) j) A( H e' ]8 ^9 Z& u* TB Bus2 230.01 35.0 10.0 9 i' Q- p5 T* N4 H: f
BE Gen2 18.001 163. 999 1.01. E+ x3 ~8 f4 @) Q
B Bus3 230.01
% Y1 n% B- e* j2 a mBE Gen3 13.801 85. 999. 1.01
/ ~8 V3 ^. o) t' k3 r% R.L ----------------- transmission lines ----------------------------
& L" r) N) v2 p( `: Q) \L Bus1 230. BusA 230. .0100 .0850 .04407 v. v F. w# p- ^; ^- s7 T& M. P1 ^
.L Bus1 230. BusA 230.2 .0100 .0850 .0440
- m% G& P4 a0 U. [L Bus1 230. BusB 230. .0170 .0920 .03958 U! v _9 u4 l/ l" s5 }3 n
L BusA 230. Bus2 230. .0320 .1610 .07658 H: E+ g4 f* i! O* E
L BusB 230. Bus3 230. .0390 .1700 .0895
* M5 @6 q7 @9 d7 X' GL Bus2 230. BusC 230. .0085 .0720 .03725 z8 l7 z0 @3 p1 i
L BusC 230. Bus3 230. .0119 .1008 .052251 x9 w* w7 T+ l) r# s
.T ----- transformers ---------: D/ t3 _5 o( U' o6 x; V& `1 z+ A' i% f
T Gen1 16.5 Bus1 230. .0567 16.5 242.
% e# N( |5 a, q& o* TT Gen2 18.0 Bus2 230. .0625 18.0 242.
5 O" }* h0 G4 W/ Z$ I+ E2 Y/ \T Gen3 13.8 Bus3 230. .0586 13.8 242.
3 K6 X3 z! f2 z [0 b% R3 n5 A(END)2 {& X' x; {; r! a. C9 f9 r
＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝计算结果＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝1 m1 K' y4 Y; \9 o x- O
Bus1 230.0 238.9KV/ -3.4 ZONE 01 0.0PLOAD 0.0QLOAD 1.039PU KV BUS TYPE ( W5 D$ E$ A: |2 A t
BusA 230.0 01 62.5PIN 29.2QIN 0.4682PLOSS -5.22QLOSS 4.7QC ; v$ N5 c" X6 W% G* f. d# q
BusB 230.0 01 43.0 7.2 0.3116 -6.70 4.3 * O7 W7 {1 H ~( V
Gen1 16.5 01 -105.4 -36.4 0.0000 7.24 242.0/ 16.5 " N A# U- K% |- B8 b1 `5 @/ m
0.0PNET 0.0QNET 7 Z, T3 k3 o+ o7 G4 ` u
Bus2 230.0 239.9KV/ -0.7 ZONE 01 35.0PLOAD 10.0QLOAD 1.043PU KV BUS TYPE
i8 w; I8 Q4 o' k+ H3 t BusA 230.0 01 64.3PIN 5.7QIN 1.2735PLOSS -9.66QLOSS 8.3QC 3 R3 G/ C& y1 U
BusC 230.0 01 63.7 5.7 0.3246 -5.27 4.1
& x' l! |' L& B6 C" L Gen2 18.0 01 -163.0 -21.4 0.0000 17.19 242.0/ 18.0 ! q# S! Z( M% d4 h _
-35.0PNET -10.0QNET + v( H: Q; t- k$ b
Bus3 230.0 242.3KV/ -1.3 ZONE 01 0.0PLOAD 0.0QLOAD 1.053PU KV BUS TYPE 9 l4 e; j2 j+ W7 s6 N- K% o
BusB 230.0 01 48.2PIN 0.0QIN 0.8515PLOSS -15.57QLOSS 9.9QC * y& L k% E6 p3 Q9 o
BusC 230.0 01 36.8 12.9 0.1826 -9.82 5.8
+ e& R5 b4 y0 c4 ]0 M' i( o Gen3 13.8 01 -85.0 -12.9 0.0000 4.32 242.0/ 13.8
8 {6 `, o, S; n1 H( [& q 0.0PNET 0.0QNET , T8 |- E% {) I& ]
BusA 230.0 231.4KV/ -6.2 ZONE 01 125.0PLOAD 70.0QLOAD 1.006PU KV BUS TYPE 3 `* x$ {6 U2 e5 v n1 N8 x% ?7 F8 W
Bus1 230.0 01 -62.0PIN -34.4QIN 0.4682PLOSS -5.22QLOSS 4.5QC
7 U6 g( ~8 {9 D+ w- \" p0 ^2 a Bus2 230.0 01 -63.0 -15.3 1.2735 -9.66 7.7 / c) r2 R) A- p1 d; u4 U
20.2QUSED 20.2QCAP SCHEDULED . Y3 ~3 v/ Z: G' D3 F
-125.0PNET -49.8QNET
, m( [2 a3 a5 P3 zBusB 230.0 235.1KV/ -5.5 ZONE 01 90.0PLOAD 40.0QLOAD 1.022PU KV BUS TYPE ' b- V( j: w X: N) {
Bus1 230.0 01 -42.6PIN -13.9QIN 0.3116PLOSS -6.70QLOSS 4.1QC
+ l; { J6 g3 o6 A) G; x+ ~/ x; Z Bus3 230.0 01 -47.4 -15.6 0.8515 -15.57 9.4
9 C2 I2 D9 R+ g; ~+ @ 10.4QUSED 10.4QCAP SCHEDULED
) g1 Q2 W7 l( z; L -90.0PNET -29.6QNET
; _% ]; p2 ~8 i* s% l' ~1 vBusC 230.0 237.3KV/ -3.1 ZONE 01 100.0PLOAD 55.0QLOAD 1.032PU KV BUS TYPE
8 k* g3 R& x, q, D. r1 j) h) |& M Bus2 230.0 01 -63.4PIN -11.0QIN 0.3246PLOSS -5.27QLOSS 4.0QC / S) N2 `1 d$ l b
Bus3 230.0 01 -36.6 -22.7 0.1826 -9.82 5.6
- U0 o$ M6 E. g! g2 ? L 21.3QUSED 21.3QCAP SCHEDULED . a* t& N+ y9 D% f& `
-100.0PNET -33.7QNET . s- w# D/ J* [7 L3 z8 b y
Gen1 16.5 16.7KV/ 0.0 ZONE 01 105.4PGE 43.7QCOND 0.0PLOAD 0.0QLOAD 1.010PU KV BUS TYPE S
/ b4 _ y# H; ~# M6 L) I3 D# f( @ Bus1 230.0 01 105.4PIN 43.7QIN 0.0000PLOSS 7.24QLOSS 16.5/242.0
0 m6 k2 w/ V8 A, R6 l2 Y 105.4PNET 43.7QNET -893.6 SLACK ADJ
6 {; w- M; W- D- [/ AGen2 18.0 18.2KV/ 5.1 ZONE 01 163.0PGE 38.6QCOND 0.0PLOAD 0.0QLOAD 1.010PU KV BUS TYPE E $ W& H' x0 V+ M
Bus2 230.0 01 163.0PIN 38.6QIN 0.0000PLOSS 17.19QLOSS 18.0/242.0
: A+ w& ?0 A/ H1 c9 a 163.0PNET 38.6QNET
! g4 c, t* c$ s: LGen3 13.8 13.9KV/ 1.5 ZONE 01 85.0PGE 17.2QCOND 0.0PLOAD 0.0QLOAD 1.010PU KV BUS TYPE E / W/ y" r5 u9 o' u
Bus3 230.0 01 85.0PIN 17.2QIN 0.0000PLOSS 4.32QLOSS 13.8/242.0
" K$ T' K& B# ~0 ~6 q1 ~ 85.0PNET 17.2QNET 5 Z# g& m3 o* ^7 Y) h
SUMMARY OF SYSTEM QUANTITIES FOR ZONE 01
8 x+ Y/ _+ Y6 S: K/ b GENERATION LOAD LOSSES SHUNT QC * J3 C/ x" P, X# x2 c) `" w- m
MW MVAR MW MVAR MW MVAR MW MVAR MVAR M- @; |9 R* b1 C7 @5 {
353.4 99.5 350.0 175.0 3.4 -23.5 0.0 52.0 72.3 # {& @5 @% {+ w8 J* D
OUTPUT CHECK --- LINE EXPORT SUMS LINE IMPORT SUMS LINE LOSSES
. b- v8 ?% ?5 U Q/ {# h! N( q 3.4 -23.5 3.4 -23.5 3.4 -23.5 / d/ W2 g- h/ q' N
SUMMARY OF SYSTEM TOTALS (MW) (MVAR) p1 J* p, K2 p4 d0 N
SYSTEM INJECTION: 3 U2 _: Q+ h) a: [( s6 f/ a
GENERATION 353.4 99.5 * s) D7 {7 q3 t* a0 O5 t
LOAD -350.0 -175.0
x7 Q5 @7 p* t; P5 \/ i0 e BUS SHUNT ADMITTANCE 0.0 52.0 $ f. d, p! J( ]8 t
UNSCHEDULED SOURCES 0.0 0.0 * m, {4 r2 s. X! X+ d* A& o& C
SUBTOTAL (INJECTION) 3.4 -23.5
) D6 S7 H/ |* N) I, W SYSTEM LOSSES:
- U. a/ v/ B7 R" K& a" x* a EQUIVALENT SHUNT ADMITTANCE 0.0 0.0 5 X+ k9 q9 `0 T' ~# n* d
LINE AND TRANSFORMER LOSSES -3.4 23.5
3 k/ [) j) x" R% u LINE INJECTION (QC) 72.3 , d+ ]; U9 c6 Y+ g
DC CONVERTER LOSSES 0.0 0.0 / V4 F- z1 |8 P8 V
SUBTOTAL (LOSSES) -3.4 23.5 8 D6 `0 [; p+ [1 d X( d& x
NET SYSTEM EXPORT: 0.0 0.0 |
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