




版權(quán)說(shuō)明:本文檔由用戶提供并上傳,收益歸屬內(nèi)容提供方,若內(nèi)容存在侵權(quán),請(qǐng)進(jìn)行舉報(bào)或認(rèn)領(lǐng)
文檔簡(jiǎn)介
1、 前推回代法計(jì)算流程要看懂前推回代法計(jì)算程序,報(bào)告敘述計(jì)算原理及計(jì)算流程。繪制計(jì)算流程框圖。確定前推回代支路次序(廣度優(yōu)先,或深度優(yōu)先),編寫(xiě)前推回代計(jì)算輸入文件。進(jìn)行潮流計(jì)算。下列為節(jié)點(diǎn)配電網(wǎng)結(jié)構(gòu)圖及系統(tǒng)支路參數(shù)和系統(tǒng)負(fù)荷參數(shù)表。圖1-2 節(jié)點(diǎn)配電網(wǎng)結(jié)構(gòu)圖表1 系統(tǒng)支路參數(shù)支路R()X(.)B/2(TK) (S)123.3673.6850.0232.3562.5410.0341.1451.280.0454.5245.040.0260.8561.140.0672.7452.9650.0283.7434.2510.0892.2372.7560.03104.144.6960.03111.3281.
2、7630.011122.4362.8660.04133.5213.9660.0表2 系統(tǒng)負(fù)荷參數(shù)節(jié)點(diǎn)編號(hào)節(jié)點(diǎn)類型節(jié)點(diǎn)初始電壓(kV)Pi(MVA)Qi(MVA)2 / 151根節(jié)點(diǎn)10.4002中間節(jié)點(diǎn)10.00.03420.03013中間節(jié)點(diǎn)10.00.06930.06424中間節(jié)點(diǎn)10.00.08450.07635葉節(jié)點(diǎn)10.00.02950.02616中間節(jié)點(diǎn)10.00.04740.04097葉節(jié)點(diǎn)10.00.11760.09578中間節(jié)點(diǎn)10.00.09460.08579葉節(jié)點(diǎn)10.00.09160.085910葉節(jié)點(diǎn)10.00.02710.022911中間節(jié)點(diǎn)10.00.06960.
3、064312葉節(jié)點(diǎn)10.00.06760.057913葉節(jié)點(diǎn)10.00.02980.0242主程序清單:PQ,FT,RX=case114(); %調(diào)用數(shù)據(jù)文件NN=size(PQ,1); %節(jié)點(diǎn)數(shù)NB=size(FT,1); %支路數(shù)數(shù)V=PQ(:,1); %V初始電壓相量maxd=1k=1while maxd>0.0001 PQ2=PQ; %每一次迭代各節(jié)點(diǎn)的注入有功和無(wú)功相同 PL=0.0;for i=1:NB kf=FT(i,1); %前推始節(jié)點(diǎn)號(hào) kt=FT(i,2); %前推終節(jié)點(diǎn)號(hào) x=(PQ2(kf,2)2+PQ2(kf,3)2)/V(kf)/V(kf); %計(jì)算沿線電流平
4、方A PQ1(i,1)=PQ2(kf,2)+RX(i,1)*x; %計(jì)算支路首端有功/MW RX(i,1)R PQ1(i,2)=PQ2(kf,3)+RX(i,2)*x; %計(jì)算沿支路的無(wú)功損耗/Mvar RX(i,2)X PQ2(kt,2)= PQ2(kt,2)+PQ1(i,1); %用PQ1去修正支路末端節(jié)點(diǎn)的有功P 單位MW PQ2(kt,3)= PQ2(kt,3)+PQ1(i,2); %用PQ1去修正支路末端節(jié)點(diǎn)的有功Q 單位Mvar PL=PL+RX(i,1)*x;endangle(1)=0.0;for i=NB:-1:1 kf=FT(i,2); %回代始節(jié)點(diǎn)號(hào) kt=FT(i,1);
5、 %回代終節(jié)點(diǎn)號(hào) dv1=(PQ1(i,1)*RX(i,1)+PQ1(i,2)*RX(i,2)/V(kf); %計(jì)算支路電壓損耗的縱分量dv1 dv2=(PQ1(i,1)*RX(i,2)-PQ1(i,2)*RX(i,1)/V(kf); %計(jì)算支路電壓損耗的橫分量dv2 V2(kt)=sqrt(V(kf)-dv1)2+dv22); %計(jì)算支路末端電壓/kV angle(kt)=angle(kf)+atand(dv2/(V(kf)-dv1); %計(jì)算支路endmaxd=abs(V2(2)-V(2);V2(1)=V(1);for i=3:1:NN if abs(V2(i)-V(i)>maxd;
6、 maxd=abs(V2(i)-V(i); end endmaxdk=k+1PQ1 %潮流分布 即支路首端潮流MVAV=V2 %節(jié)點(diǎn)電壓模計(jì)算結(jié)果kVangle %節(jié)點(diǎn)電壓角度計(jì)算結(jié)果單位度PL %網(wǎng)損單位MWendclear輸入文件清單:function PQ,FT,RX=case114()PQ=%節(jié)點(diǎn)電壓 有功 無(wú)功10.4 0 010.0 0.0342 0.030110.0 0.0693 0.064210.0 0.0845 0.076310.0 0.0295 0.026110.0 0.0474 0.040910.0 0.1176 0.095710.0 0.0946 0.085710.0
7、0.0916 0.085910.0 0.0271 0.022910.0 0.0696 0.064310.0 0.0676 0.057910.0 0.0298 0.0242;FT=%首端 末端 5 413 44 310 312 1111 37 66 29 88 23 22 1;RX=% R X 4.524 5.043.521 3.9661.145 1.284.14 4.6962.436 2.8661.328 1.7632.745 2.9650.856 1.142.237 2.7563.743 4.2512.356 2.5413.367 3.685;計(jì)算過(guò)程maxd = 1k = 1maxd =
8、0.1780k = 2PQ1 = 0.0296 0.0262 0.0299 0.0243 0.1443 0.1272 0.0272 0.0230 0.0678 0.0581 0.1378 0.1230 0.1182 0.0964 0.1660 0.1378 0.0920 0.0863 0.1890 0.1748 0.3847 0.3439 0.8099 0.7260V = Columns 1 through 8 10.4000 9.8807 9.8220 9.9672 9.9734 9.9701 9.9390 9.8550 Columns 9 through 13 9.9556 9.9780
9、9.9600 9.9668 9.9799angle = Columns 1 through 8 0 0.3011 0.3986 0.4211 0.4387 0.3421 0.3916 0.3878 Columns 9 through 13 0.4225 0.4173 0.4444 0.4747 0.4400PL = 0.0471maxd = 0.1787k = 3PQ1 = 0.0296 0.0262 0.0299 0.0243 0.1443 0.1272 0.0272 0.0230 0.0678 0.0581 0.1378 0.1230 0.1182 0.0964 0.1660 0.1378
10、 0.0920 0.0863 0.1890 0.1749 0.3849 0.3442 0.8112 0.7274V = Columns 1 through 8 10.4000 9.8798 9.7004 9.7886 9.9405 9.8504 9.9089 9.7338 Columns 9 through 13 9.8100 9.7996 9.7813 9.9267 9.9470angle = Columns 1 through 8 0 0.3011 0.4011 0.4244 0.4421 0.3431 0.3929 0.3899 Columns 9 through 13 0.4257 0
11、.4204 0.4486 0.4791 0.4434PL = 0.0484maxd = 0.1793k = 4PQ1 = 0.0296 0.0262 0.0299 0.0243 0.1444 0.1272 0.0272 0.0230 0.0678 0.0581 0.1379 0.1231 0.1182 0.0964 0.1661 0.1378 0.0920 0.0864 0.1891 0.1749 0.3851 0.3444 0.8115 0.7277V = Columns 1 through 8 10.4000 9.8796 9.6994 9.6666 9.7614 9.8495 9.788
12、4 9.7329 Columns 9 through 13 9.6883 9.6777 9.6591 9.7474 9.7680angle = Columns 1 through 8 0 0.3011 0.4011 0.4250 0.4433 0.3431 0.3942 0.3899 Columns 9 through 13 0.4266 0.4209 0.4498 0.4814 0.4447PL = 0.0487maxd = 0.1226k = 5PQ1 = 0.0296 0.0262 0.0299 0.0243 0.1444 0.1272 0.0272 0.0230 0.0678 0.05
13、81 0.1379 0.1231 0.1183 0.0964 0.1661 0.1379 0.0920 0.0864 0.1891 0.1750 0.3852 0.3444 0.8115 0.7278V = Columns 1 through 8 10.4000 9.8795 9.6991 9.6656 9.6391 9.8493 9.7875 9.7326 Columns 9 through 13 9.6873 9.6767 9.6581 9.6248 9.6457angle = Columns 1 through 8 0 0.3011 0.4011 0.4250 0.4438 0.3431
14、 0.3942 0.3899 Columns 9 through 13 0.4266 0.4209 0.4498 0.4822 0.4452PL = 0.0487maxd = 0.0010k = 6PQ1 = 0.0296 0.0262 0.0299 0.0243 0.1444 0.1273 0.0272 0.0230 0.0678 0.0581 0.1379 0.1231 0.1183 0.0964 0.1661 0.1379 0.0920 0.0864 0.1891 0.1750 0.3852 0.3445 0.8116 0.7278V = Columns 1 through 8 10.4
15、000 9.8795 9.6991 9.6653 9.6381 9.8492 9.7873 9.7326 Columns 9 through 13 9.6870 9.6764 9.6579 9.6238 9.6447angle = Columns 1 through 8 0 0.3011 0.4011 0.4250 0.4438 0.3431 0.3942 0.3899 Columns 9 through 13 0.4266 0.4209 0.4498 0.4823 0.4452PL = 0.0488maxd = 2.6021e-004k = 7PQ1 = 0.0296 0.0262 0.02
16、99 0.0243 0.1444 0.1273 0.0272 0.0230 0.0678 0.0581 0.1379 0.1231 0.1183 0.0964 0.1661 0.1379 0.0920 0.0864 0.1891 0.1750 0.3852 0.3445 0.8116 0.7278V = Columns 1 through 8 10.4000 9.8795 9.6991 9.6652 9.6378 9.8492 9.7872 9.7326 Columns 9 through 13 9.6870 9.6764 9.6578 9.6235 9.6445angle = Columns
17、 1 through 8 0 0.3011 0.4011 0.4250 0.4438 0.3431 0.3942 0.3899 Columns 9 through 13 0.4266 0.4209 0.4498 0.4823 0.4452PL = 0.0488maxd = 6.1046e-005k = 8PQ1 = 0.0296 0.0262 0.0299 0.0243 0.1444 0.1273 0.0272 0.0230 0.0678 0.0581 0.1379 0.1231 0.1183 0.0964 0.1661 0.1379 0.0920 0.0864 0.1891 0.1750 0
18、.3852 0.3445 0.8116 0.7278V = Columns 1 through 8 10.4000 9.8795 9.6991 9.6652 9.6377 9.8492 9.7872 9.7326 Columns 9 through 13 9.6870 9.6764 9.6578 9.6235 9.6444angle = Columns 1 through 8 0 0.3011 0.4011 0.4250 0.4438 0.3431 0.3942 0.3899 Columns 9 through 13 0.4266 0.4209 0.4498 0.4823 0.4452PL = 0.0488計(jì)算結(jié)果清單:maxd = 1k = 1maxd = 0.1780k = 2maxd = 0.1787k = 3maxd = 0.1793k = 4maxd = 0.1226k = 5maxd = 0.0010k = 6maxd = 2.6021e-04k = 7maxd = 6.1046e-05k = 8PQ1 = 0.0296 0.0262 0.0299 0.0243 0.1444 0.1273 0.0272 0.0230 0.0678 0.0581 0.1379 0.1231 0.1183 0.0964 0.1661 0.1379 0.0920 0.0864 0.189
溫馨提示
- 1. 本站所有資源如無(wú)特殊說(shuō)明,都需要本地電腦安裝OFFICE2007和PDF閱讀器。圖紙軟件為CAD,CAXA,PROE,UG,SolidWorks等.壓縮文件請(qǐng)下載最新的WinRAR軟件解壓。
- 2. 本站的文檔不包含任何第三方提供的附件圖紙等,如果需要附件,請(qǐng)聯(lián)系上傳者。文件的所有權(quán)益歸上傳用戶所有。
- 3. 本站RAR壓縮包中若帶圖紙,網(wǎng)頁(yè)內(nèi)容里面會(huì)有圖紙預(yù)覽,若沒(méi)有圖紙預(yù)覽就沒(méi)有圖紙。
- 4. 未經(jīng)權(quán)益所有人同意不得將文件中的內(nèi)容挪作商業(yè)或盈利用途。
- 5. 人人文庫(kù)網(wǎng)僅提供信息存儲(chǔ)空間,僅對(duì)用戶上傳內(nèi)容的表現(xiàn)方式做保護(hù)處理,對(duì)用戶上傳分享的文檔內(nèi)容本身不做任何修改或編輯,并不能對(duì)任何下載內(nèi)容負(fù)責(zé)。
- 6. 下載文件中如有侵權(quán)或不適當(dāng)內(nèi)容,請(qǐng)與我們聯(lián)系,我們立即糾正。
- 7. 本站不保證下載資源的準(zhǔn)確性、安全性和完整性, 同時(shí)也不承擔(dān)用戶因使用這些下載資源對(duì)自己和他人造成任何形式的傷害或損失。
最新文檔
- 公司生日會(huì)文案策劃方案
- 公司班組拓展活動(dòng)方案
- 公司端午節(jié)DIY包粽子活動(dòng)方案
- 公司摘橙子活動(dòng)方案
- 公司花園種植活動(dòng)方案
- 公司科技展廳策劃方案
- 公司組織游玩兒活動(dòng)方案
- 公司組織游戲策劃方案
- 公司猜照片活動(dòng)策劃方案
- 2025年中級(jí)會(huì)計(jì)考試試卷及答案
- 公安院校公安專業(yè)招生考生患病經(jīng)歷申報(bào)表
- 定期體檢健康管理制度
- AIGC驅(qū)動(dòng)的數(shù)字文化生產(chǎn)模式創(chuàng)新研究
- 《詳述腦卒中及其治療:抗擊腦卒中的策略與護(hù)理課件》
- 夏季防火安全常識(shí)培訓(xùn)
- (四調(diào))武漢市2025屆高中畢業(yè)生四月調(diào)研考試 數(shù)學(xué)試卷(含答案詳解)
- DB31T 1564-2025企業(yè)實(shí)驗(yàn)室危險(xiǎn)化學(xué)品安全管理規(guī)范
- 氟斑牙的健康宣教
- 2025版校園食堂日管控、周排查、月調(diào)度記錄表
- 2024年生活方式酒店研究報(bào)告
- ISO 37001-2025 反賄賂管理體系要求及使用指南(中文版-雷澤佳譯-2025)
評(píng)論
0/150
提交評(píng)論