電力系統(tǒng)計(jì)算報(bào)告

1、下載可編輯電力系統(tǒng)計(jì)算報(bào)告院（系）電氣工程及自動(dòng)化授課教師胡林獻(xiàn)姓名張遠(yuǎn)實(shí)學(xué)號(hào)13S106052.專(zhuān)業(yè) .整理 .下載可編輯P-Q 分解潮流法簡(jiǎn)述 P-Q分解潮流法的基本原理、 計(jì)算過(guò)程、計(jì)算框圖。用 C語(yǔ)言編制 P-Q 分解法潮流程序，并用電科院 6 機(jī) 22 節(jié)點(diǎn)系統(tǒng)加以驗(yàn)證。要求采用稀疏技術(shù)、因子表技術(shù)和節(jié)點(diǎn)優(yōu)化技術(shù)， 并考慮負(fù)荷靜態(tài)特性。P-Q分解潮流法的基本原理：P-Q 分解法即是基于采用極坐標(biāo)形式表示的牛頓法，其根據(jù)電力系統(tǒng)實(shí)際運(yùn)行狀態(tài)的線路參數(shù) R/X 通常很小的情況，對(duì)求解修正量的修正方程系數(shù)矩陣加以簡(jiǎn)化，使其變?yōu)槌?shù)陣( 即所謂的等斜率 ) ，且 P 、Q 迭代解耦。這樣可減

2、少每次迭代的計(jì)算時(shí)間，提高計(jì)算速度，又不影響最終結(jié)果，因此是通常選用的一種方法。但在低電壓配電網(wǎng)中，當(dāng)線路R/X比值很大時(shí)，可能出現(xiàn)不收斂情況，此時(shí)應(yīng)考慮更換其它方法。計(jì)算過(guò)程：1、 形成有功迭代和無(wú)功迭代的簡(jiǎn)化雅克比矩陣B' 和 B''2、 給定 PQ節(jié)點(diǎn)的初值和各節(jié)點(diǎn)電壓相角初值nPi (k)/ Vi (k)3、 作有功迭代PiPisPiPis ViV j (Gij cos ijBij sin ij ) ，計(jì)算，解修j 1(k1)(k)(k)，得各節(jié)點(diǎn)電壓相角的修正值。正方程 iii4、 作無(wú)功迭代QiQisQiQisVinV j (Gij sin ijQi(k)/

3、 Vi(k)，Bij cos ij ) 計(jì)算，解j 1修正方程 V i (k1)V i(k)V i(k)，得各節(jié)點(diǎn)電壓幅值的修正量。5、 返回第三步，繼續(xù)迭代到滿足要求為止。計(jì)算框圖流程：.專(zhuān)業(yè) .整理 .下載可編輯輸入原始數(shù)據(jù)形成矩陣 B' 及 B'' 并進(jìn)行三角分解設(shè) PQ 節(jié)點(diǎn)電壓初值，各節(jié)點(diǎn)電壓相角初值制迭代計(jì)數(shù) k=0KP1,KQ1用公式計(jì)算不平衡功率Pi(k)，計(jì)算Pi (k) / Vi (k)YmaxPi(k) P ?置 K p 0解修正方程求i(k)K Q0?Y(k1)(k)(k)iii置KQ1用公式計(jì)算不平衡功率Qi(k) ，計(jì)算Qi(k) / Vi

4、(k)max Qi(k) Q ?置KQ 0Yi(k)K P0?解修正方程求VYVi (k1)Vi (k)Vi (k)置KP1k1k計(jì)算平衡節(jié)點(diǎn)功率及全部線路輸出.專(zhuān)業(yè) .整理 .下載可編輯算例描述用電科院6 機(jī) 22 節(jié)點(diǎn)算例進(jìn)行驗(yàn)證，詳細(xì)參數(shù)和網(wǎng)絡(luò)拓?fù)鋱D如下所示表 1線路參數(shù)支路號(hào)首末端節(jié)點(diǎn)號(hào)支路電阻支路電抗對(duì)地電納 /217-80.01060.07400.027-90.01470.10400.038-90.00340.01310.049-220.05590.21800.1954512-130.002450.02551.395614-190.00340.02000.0716-190.0578

5、0.21800.1887816-200.01630.06620.2353916-210.03740.17800.1641016-180.00330.03330.01119-210.01140.03700.01220-220.02140.08590.30081321-220.01500.06070.2198148-220.05370.19000.16531511-120.00330.03431.08797表 2變壓器支路數(shù)據(jù)支路號(hào)首末端節(jié)點(diǎn)號(hào)電阻電抗變比17-10.00.01501.05029-20.00.02171.075322-30.00.01241.100419-40.00.06401.0

6、25518-50.00.03751.050617-60.00.03371.000710-90.0-0.0021.000811-100.00.01801.000915-120.00.01801.0001017-130.00.01001.0001115-140.0-0.0021.0001216-170.00.00101.027表 3并聯(lián)電容器數(shù)據(jù)節(jié)點(diǎn)號(hào)電納12-1.3665160.5017611-1.366512-1.3665.專(zhuān)業(yè) .整理 .下載可編輯表 4母線功率數(shù)據(jù)母線號(hào)發(fā)電機(jī)輸出有功發(fā)電機(jī)輸出無(wú)功負(fù)荷有功負(fù)荷無(wú)功15.96311.73550.000.00263.20.000.0033.14

7、.60.000.0000.0054.33.340.000.006-0.011.00.000.0070.000.000.000.0080.000.002.871.4490.000.003.762.21100.000.000.000.00110.000.000.000.00120.000.000.000.00130.000.000.000.00140.000.000.000.00150.000.000.000.00160.000.005.02.9170.000.000.000.00180.000.004.32.6190.000.000.8640.662200.000.000.7

8、190.474210.000.000.70.5220.000.002.2651.69表 5 無(wú)功可調(diào)母線數(shù)據(jù)母線號(hào)電壓幅值（標(biāo)幺值）無(wú)功下限值無(wú)功上限制11.0-51031.0-5561.0-56表 6發(fā)電機(jī)參數(shù)母線號(hào)暫態(tài)電抗轉(zhuǎn)子慣性時(shí)阻尼系數(shù)發(fā)電機(jī)有功 發(fā)電機(jī)有功間常數(shù)出力下限出力上限10.0150140.820.00316.520.038230.000.001.26.630.039679.500.001.58.2540.121015.680.0048039.200.001.025.6160.19762.620.000.21.1.專(zhuān)業(yè) .整理 .下載可編輯圖 1 電科院

9、6 機(jī) 22 節(jié)點(diǎn)系統(tǒng)圖計(jì)算結(jié)果IVCAPLQLPGQG1 1.00000 0.00000 0.00000 0.00000 5.96312 1.735492 0.97384 -11.311893 0.00000 0.00000 6.00000 3.200003 1.00000 -27.459057 0.00000 0.00000 3.10000 3.147314 1.02190 -25.168610 0.00000 0.00000 1.60000 0.700005 1.04392 -28.205656 0.00000 0.00000 4.30000 3.340006 1.00000 -37.5

10、66566 0.00000 0.00000 -0.01000 0.916647 1.02697 -5.247170 0.00000 0.00000 0.00000 0.000008 0.96847 -19.788813 -2.87000 -1.44000 0.00000 0.000009 0.98081 -19.738201 -3.76000 -2.21000 0.00000 0.0000010 0.97985 -19.304344 0.00000 0.00000 0.00000 0.0000011 0.99050 -23.173771 0.00000 0.00000 0.00000 0.00

11、00012 0.99359 -30.499034 0.00000 0.00000 0.00000 0.0000013 0.98198 -35.528090 0.00000 0.00000 0.00000 0.0000014 1.00020 -30.695861 0.00000 0.00000 0.00000 0.0000015 1.00103 -30.720282 0.00000 0.00000 0.00000 0.0000016 0.99308 -27.750976 -5.00000 -2.90000 0.00000 0.0000017 0.96911 -37.546641 0.00000

12、0.00000 0.00000 0.00000.專(zhuān)業(yè) .整理 .下載可編輯18 0.98360 -37.696751 -4.30000 -2.60000 0.00000 0.0000019 1.00776 -31.018334 -0.86400 -0.66200 0.00000 0.0000020 1.01475 -35.674534 -0.71900 -0.47400 0.00000 0.0000021 1.101546 -32.104404 -0.70000 -0.50000 0.00000 0.0000022 1.05792 -29.749725 -2.26500 -1.69000 0.

13、00000 0.00000I J PIJ QIJPJIQJI1 7 5.963121.73549 -5.96312 -1.156932 9 6.000003.20000 -6.00000 -2.141953 22 3.10000 3.14731 -3.10000 -2.905314 19 1.60000 0.70000 -1.60000 -0.513085 18 4.30000 3.34000 -4.30000 -2.319866 17 -0.01000 0.91664 0.01000 -0.888337 8 3.48120 0.74380 -3.35384 0.145337 9 2.4819

14、1 0.41314 -2.39368 0.211128 9 -0.28186 -0.83922 0.28470 0.850168 22 0.76571 -0.74611 -0.71214 0.595619 10 3.63860 -0.48476 -3.63860 0.456749 22 0.71038 -0.64457 -0.66894 0.3995110 113.63860-0.45674-3.638600.7088611 123.38055-2.04951-3.59392-1.1859912 133.38055-1.10216-3.35200-1.3230612 150.21337-0.4

15、0993-0.213370.4138313 173.352001.32306 -3.35200 -1.1883914 15-0.21337 0.413390.21337 -0.4138314 190.21337-0.41339-0.212640.4177216 17-3.34200 -2.06023 3.342002.0767116 180.000270.28284 -0.00000 -0.2801416 19-0.51158 -0.08567 0.52751-0.2319916 20-0.59323 -0.39926 0.59959-0.0495816 21-0.55346 -0.14284

16、 0.56509-0.1326619 210.42113-0.33465-0.417880.3451920 22-1.31859 -0.42442 1.35499-0.0758421 22-0.84721 -0.71254 0.861080.29604源程序#include "math.h"#include "stdio.h"#define NS2000/ 最大節(jié)點(diǎn)數(shù)#define NS2NS*2#define NS41000/NS4 、 NS必須大于 2*zls 。.專(zhuān)業(yè) .整理 .下載可編輯#define ZS3000/ 最大支路數(shù)#define Z

17、S2ZS*2#define DKS200/ 最大電抗器數(shù)#define N2ZS*4#define N3ZS*8+NS*4FILE *fp1, *fp2;char inname12, outname12;/ fp1 輸入數(shù)據(jù)文件指針 fp2 輸出文件指針/inname 輸入數(shù)據(jù)文件名outname 輸出數(shù)據(jù)文件名int n, zls, nb, mdk, mpj, bnsopton, it1, dsd, kk2, nzls;/節(jié)點(diǎn)總數(shù) n( 包括聯(lián)絡(luò)節(jié)點(diǎn) )支路數(shù) ( 回路數(shù) )zls節(jié)點(diǎn)數(shù) nb( 發(fā)電機(jī)和負(fù)荷 )/接地電抗數(shù) mdk 精度 eps平衡節(jié)點(diǎn)號(hào) mpj/節(jié)點(diǎn)優(yōu)化 ( 標(biāo)志 )bn

18、sopton(=0節(jié)點(diǎn)不優(yōu)化， !=0 節(jié)點(diǎn)優(yōu)化 )/最大迭代次數(shù) it1 最低電壓或最大功率誤差節(jié)點(diǎn)號(hào)dsd/ 負(fù)荷靜特性標(biāo)志 (=0 考慮負(fù)荷靜特性 )/ 支路數(shù) ( 雙回線算一條支路 )int izlZS, jzlZS, idkDKS, ydsNS, ydzNS, iyZS2;/izl,jzl,idk:分別存放左、右節(jié)點(diǎn)號(hào)和電抗器節(jié)點(diǎn)號(hào)。/ yds 存放各行非零非對(duì)角元素的個(gè)數(shù)。/ ydzi 是第 i 行第一個(gè)非零非對(duì)角元素的首地址，/ 即在所有非零非對(duì)角元素中的次序號(hào)/ iy存放列足碼。int nnewNS4, oldNS, nobNS, nobtNS;/nnew,old存放的是新、舊

19、節(jié)點(diǎn)號(hào)。/nnewi中為 i 對(duì)應(yīng)的新號(hào)/nob 存放的是節(jié)點(diǎn)號(hào)。nobt存放的是節(jié)點(diǎn)類(lèi)型, 0: pq節(jié)點(diǎn) , -1: pv節(jié)點(diǎn)。double eps, dsm, vmin, dph, dqh, af3;/ eps 迭代收斂精度， dsm最大功率誤差/ vmin: 系統(tǒng)最低電壓值。 dph,dqh: 系統(tǒng)有、無(wú)功損耗。/ af0 和 af1 分別是負(fù)荷有功功率、無(wú)功功率靜態(tài)特性系數(shù)。double v00;/ v00:系統(tǒng)平均電壓ci,cj分別作為節(jié)點(diǎn)i,j的電壓相角的臨時(shí)存儲(chǔ)單元。double zrZS, zxZS, zykZS, dkkDKS, giiNS, biiNS, ygZS2, y

20、bZS2; double pgNS, qgNS, plNS, qlNS, v0NS, vNS, vaNS;/支路電阻 zr支路電抗 zx輸電線路充電容納 zyk(y0/2)/接地電抗 dkk對(duì)角元實(shí)部 gii對(duì)角元虛部/非對(duì)角元實(shí)部 yg非對(duì)角元虛部 yb/pg,qg,pl,ql:發(fā)電機(jī)，負(fù)荷功率實(shí)、虛部/ v 是電壓幅值 ,va 是電壓相角。double wNS2, kg3, bNS2;int newsortNS4;/newsorti存放 i 對(duì)應(yīng)的老號(hào).專(zhuān)業(yè) .整理 .下載可編輯void initial();void pqflow();void out();void dataio();vo

21、id bnsopt();void zlsort(int* nnew);void printo();void printy();void y2();void ya0();void yzb();void jdgl(int kq0);void bbhl(int kq0);void calc();int iabs(int a);void branch_output();void newval(double* aa);void printc(char aa, int n);/void printc();void iswap(int* m, int* n);/void iswap();/void swap

22、();void swap(double* m, double* n);void printf2(double* aa, double* bb, int n);void calc(int* iu, double* u, double* di, int* nfd, double* b);void printi(int* aa, int n);void printf1(double* aa, int n);int find(int k, int a, int* z);void yzb(int t, int* iu, double* u, double* di, int* nfd);int isgn(

23、int a, int b);void yy1();void y3();void newtoold();void node_output();/int pq_main(void)initial();/ 初始化pqflow();/pq潮流計(jì)算out();/ 輸出節(jié)點(diǎn)和支路數(shù)據(jù)return 1;.專(zhuān)業(yè) .整理 .下載可編輯int isgn(int a, int b)/*本函數(shù)功能返回值為a 的絕對(duì)值b 的符號(hào)*/ 參數(shù) 1 提供值，參數(shù)2 提供符號(hào) /if (b < 0)if (a > 0)a = -a;return a;int find(int k, int a, int* z)/*本

24、函數(shù)查找a 中是否有fabs(k)有則返回 0，無(wú)則返回1*/ 參數(shù) 1 為待查找量，參數(shù)2 待搜索數(shù)組，參數(shù)3 返回 k 在 a 中的次序號(hào) /int i;for (i = 1; i <= n; i +)if(iabs(k) = ai)*z = i;return 1;return 0;void oldtonew()/*本函數(shù)將輸入數(shù)據(jù)中的節(jié)點(diǎn)號(hào)變成從1 開(kāi)始的連續(xù)節(jié)點(diǎn)號(hào)*/int i, j, k, ii1, ii2, zls2, k1, k2, k3, k4, ip;zls2 = zls + zls;for (i = 1; i <= zls2; i +)newsorti = 0;

25、ii1 = 0;for (i = 1; i <= zls; i +).專(zhuān)業(yè) .整理 .下載可編輯k = izli;if (!find(k, newsort, &ii2)ii1 +;newsortii1 = iabs(k);k = jzli;if (!find(k, newsort, &ii2)ii1 +;newsortii1 = iabs(k);for (i = 1; i <= ii1-1; i +)for (j = i+1; j <= ii1; j +)if (newsorti > newsortj)k = newsorti;newsorti = ne

26、wsortj;newsortj = k;for (i = 1; i <= zls; i +)k = izli;if (find(k, newsort, &ii2)izli = isgn(ii2, k);elseprintf("error!");k = jzli;if (find(k, newsort, &ii2)jzli = isgn(ii2, k);elseprintf("error!");printf("izl%d = %d, jzl%d = %dn", i, izli, i, jzli);for (i =

27、1; i <= nb; i +).專(zhuān)業(yè) .整理 .下載可編輯for (j = 1; j <= n; j +)if (nobi = newsortj)nobi = j;break;printf("nob%d = %dn", i, nobi);for (j = 1; j <= n; j +)if (mpj = newsortj)mpj = j;break;/ 電抗器節(jié)點(diǎn)號(hào)轉(zhuǎn)變for (j = 1; j <= mdk; j +)for (i = 1; i <= n; i +)if (idkj = newsorti)idkj = i;break;/hu

28、 2013-1-8printc('-', 58);fprintf(fp2, "nn*newsort*n");for (i = 1; i <= n; i +)fprintf(fp2, "%8d%8dn", i, newsorti);fprintf(fp2, "n*newsort*n");/ hu 2013-1-8void initial()/*本函數(shù)進(jìn)行初始化工作*/.專(zhuān)業(yè) .整理 .下載可編輯int i, k1;dataio();/輸入原始數(shù)據(jù)oldtonew();/轉(zhuǎn)化為新號(hào)if (bnsopton = 0)/

29、節(jié)點(diǎn)不優(yōu)化，新節(jié)點(diǎn)號(hào)即為老節(jié)點(diǎn)號(hào)。for (i = 1; i <= n; i +)oldi = i;nnewi = i;elsebnsopt();/節(jié)點(diǎn)優(yōu)化mpj = nnewmpj;/mpj:平衡節(jié)點(diǎn)zlsort(nnew);/ sort the r,x and bfor (i = 1; i <= mdk; i +)k1 = idki;idki = nnewk1;for (i = 1; i <= n; i +)vi = v00;vai = 0.0; /所有節(jié)點(diǎn)的電壓幅值初值都為1.000(v00)，電壓相角初值都為0 。/ exchange the node before

30、and after sort for (i = 1; i <= n; i +)ydsi = 0; / the immediate for (i = 1; i <= nb; i +)k1 = nnewnobi; ydsk1 = nobti;for (i = 1; i <= n; i +) nobti = ydsi;newval(pg);newval(qg);newval(pl);newval(ql);newval(v0);for (i = 1; i <= n; i +) / nobt is type of nodeif (nobti = -1)vi = v0i;/nob

31、is serials numbe/nobt = -1: pv節(jié)點(diǎn)， v0 存放的是最后一個(gè)節(jié)點(diǎn)數(shù)據(jù)，.專(zhuān)業(yè) .整理 .下載可編輯/ 對(duì)于 pv 節(jié)點(diǎn)，即為該點(diǎn)應(yīng)維持的電壓值。/nobt = 0: pq節(jié)點(diǎn)， v0 存放的是最后一個(gè)節(jié)點(diǎn)數(shù)據(jù)，/ 對(duì)于 pq 節(jié)點(diǎn)，即為系統(tǒng)平均電壓值。printo();/ 輸出 af 、 v00 和節(jié)點(diǎn)排序后的支路、節(jié)點(diǎn)和/ 接地電抗數(shù)據(jù) ( 僅僅查看中間結(jié)果 )ya0();/獲得 yds 、 ydz 、列足碼iy。 ( P407 )void printo()/*輸出 af、 v00 和節(jié)點(diǎn)排序后的支路、節(jié)點(diǎn)和接地電抗數(shù)據(jù)*/int i;fprintf(fp2,

32、"n*AF AND V0 *n");fprintf(fp2, "n %7.3f%7.3f%7.3fn", af0, af1, v00);printc('-', 78);fprintf(fp2, "nn*ZLB*n");for (i = 1; i <= zls; i +)fprintf(fp2, "n");fprintf(fp2, "%8d%8d%8d%8d", izli, jzli, oldabs(izli), oldabs(jzli);fprintf(fp2, "

33、;%9.4f%9.4f%9.4f", zri, zxi, zyki);printc('-', 78);fprintf(fp2, "nn*BUS*n");for (i = 1; i <= nb; i +)fprintf(fp2, "n");fprintf(fp2, "%8d%8d%8d", nobi,oldnobi, nobti);fprintf(fp2,"%9.4f%9.4f%9.4f%9.4f%9.4f",pgi,qgi,pli,qli,v0i);printc('-'

34、;, 78);fprintf(fp2,"nn*DKK*n");for (i = 1; i <= mdk; i +)fprintf(fp2, "n");fprintf(fp2, "%8d%8d%7.4f", idki, oldidki, dkki);void dataio().專(zhuān)業(yè) .整理 .下載可編輯/*系統(tǒng)數(shù)據(jù)初始化*/int i;af0 = 0.6;af1 = 2.0;/af0和 af1分別是負(fù)荷有功功率、無(wú)功功率靜態(tài)特性系數(shù)。v00 = 1.000;/系統(tǒng)平均電壓printf("nplease input the

35、 name of data filen");scanf("%s", inname);fp1 = fopen(inname, "r");printf("nplease output the name of data filen");scanf("%s", outname);fp2 = fopen(outname, "w");fscanf(fp1, "%d %d %d %d", &n, &zls, &nb, &mdk);/ the num

36、ber of node ,branches, nodefscanf(fp1, "%lf %d %d %d %d", &eps, &kk2, &mpj,&bnsopton, &it1);/precision, swing node,sort the node,iteration numbersfor (i = 1; i <= zls; i +)fscanf(fp1, "%d %d", &izli, &jzli);fscanf(fp1, "%lf %lf %lf ", &

37、;zri, &zxi, &zyki);for (i = 1; i <= nb; i +)fscanf(fp1, "%d %d", &nobi, &nobti);fscanf(fp1, "%lf %lf %lf %lf %lf", &pgi, &qgi, &pli,&qli, &v0i);for (i = 1; i <= mdk; i +)fscanf(fp1, "%d %lf", &idki, &dkki);fclose(fp1);vo

38、id pqflow()/*PQ分解法計(jì)算潮流*/int kq0, iu1N2, nfd1NS, iu2N2, nfd2NS;int i, t;.專(zhuān)業(yè) .整理 .下載可編輯double u1N2, u2N2, di1NS, di2NS;yy1();yzb(0, iu1, u1, di1, nfd1); /form the B matrix of P-0 iterationy2();yzb(1, iu2, u2, di2, nfd2); /form the B matrix of Q-V iterationt = 0;kq0 = 0;kg0 = kg1 = 1;dojdgl(kq0); / cal

39、culating the powerbbhl(kq0); / find out the maxiif (kq0 = 0)printf("P: %dt%dt%fn", t, dsd, dsm);elseprintf("Q: %dt%dt%fn", t, dsd, dsm);if (fabs(dsm) > eps)kgkq0=1;if (kq0 = 0)calc(iu1, u1, di1, nfd1, b);if (kq0 = 1)calc(iu2, u2, di2, nfd2, b);for (i = 1; i <= n; i +)if(kq0

40、 = 0 )vai = vai - bi / v00;elsevi = vi - bi;elsekgkq0 = 0;if(kq0 = 0)kq0 = 1;elsekq0 = 0;t +;if(t > it1)break;while(fabs(dsm) > eps) | (kgkq0 != 0);.專(zhuān)業(yè) .整理 .下載可編輯fprintf(fp2, "n%s%d", "times = ", t);void out()/*本函數(shù)輸出節(jié)點(diǎn)和支路數(shù)據(jù)*/zlsort(old);/ recover the data if sorted/newtoold

41、();node_output(); / node databranch_output();/branch dataprintc('-', 78);printc('*', 78);fprintf(fp2, "n");void newval(double* aa)/*本函數(shù)將舊號(hào)換成新號(hào)*/int i, k1;for (i = 1; i <= n; i +)bi = 0.0;for (i = 1; i <= nb; i +)k1 = nnewnobi;bk1 = aai;for (i = 1; i <= n; i +)aai =

42、 bi;void yzb(int t, int* iu, double* u, double* di, int* nfd)/*本函數(shù)求因子表*/ 參數(shù) 1 為標(biāo)志 (t=0求 B',t=1求 B'')/ 參數(shù) 2 因子表上三角矩陣非零非對(duì)角元素的列足碼/ 參數(shù) 3 因子表上三角矩陣非零非對(duì)角元素的數(shù)值/ 參數(shù) 4 因子表上三角矩陣對(duì)角元素/ 參數(shù) 5 因子表上三角各行非零元素個(gè)數(shù).專(zhuān)業(yè) .整理 .下載可編輯int i, j, k, i1, i2;int jj, jj1, jj2, im, x, fdNS;double ai, bNS;nfd1 = 1;for (i =

43、1; i <= NS; i +)/hu 2013-1-9ui = 0.0;/hu 2013-1-9for (i = 1; i <= n; i +)/nobt存放的是節(jié)點(diǎn)類(lèi)型, 0: pq節(jié)點(diǎn) , -1: pv節(jié)點(diǎn)。if (t != 1) | (nobti != -1) && i != mpj) / <-|/|for (j = i + 1; j <= n; j +)/|bj = 0.0;/|bi = biii;/|if (kk2 = 0) && (t = 1) && (nobti != -1)/存在 (t = 1)的情況，不多余。bi = bi + af1 * qli / v0i / v0i;/af1i1 = ydzi;i2 = ydzi + 1 - 1;for (j = i1; j <