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1、潮流計(jì)算研究報(bào)告一、潮流計(jì)算概述電力工業(yè)是國民經(jīng)濟(jì)的基礎(chǔ)產(chǎn)業(yè),為保證電力系統(tǒng)安全、穩(wěn)定及可靠的運(yùn)行,首先需計(jì)算電力系統(tǒng)網(wǎng)絡(luò)潮流。潮流計(jì)算指根據(jù)給定的電力系統(tǒng)運(yùn)行條件及系統(tǒng)接線情況確定整個(gè)電力系統(tǒng)各部分的運(yùn)行狀態(tài):各母線電壓、各元件流過的功率及系統(tǒng)功率損耗等等。在電力系統(tǒng)規(guī)劃、設(shè)計(jì)及運(yùn)行方式的研究中,都需要利用潮流計(jì)算來定量地分析比較供電方案或運(yùn)行方式的合理性、可靠性及經(jīng)濟(jì)性,所以潮流計(jì)算是研究電力系統(tǒng)的一種很重要和很基礎(chǔ)的計(jì)算。在數(shù)學(xué)上潮流計(jì)算問題是一組多元非線性方程式求解問題,其解法離不開迭代。二、潮流計(jì)算算法框圖三、節(jié)點(diǎn)分類本次設(shè)計(jì)采用
2、直角坐標(biāo)牛頓拉夫遜法，用C語言編制潮流計(jì)算程序。牛頓法拉夫遜：把非線性方程式的求解過程變成反復(fù)對相應(yīng)的線性方程式的求解過程，通常稱為逐次線性化過程。節(jié)點(diǎn)分類：1）平衡節(jié)點(diǎn)已知節(jié)點(diǎn)的電壓幅值和相角，求有功和無功，一般設(shè)在調(diào)頻廠（一個(gè)）。2）PQ節(jié)點(diǎn)已知節(jié)點(diǎn)的有功、無功，求電壓幅值和相角，一般設(shè)在變電所母線，按給定頻率發(fā)電的電廠母線（多個(gè)）。3）PV節(jié)點(diǎn)已知節(jié)點(diǎn)的有功和電壓幅值，求無功和電壓相角，一般設(shè)在有無功補(bǔ)償?shù)淖冸娝妇€，無功可調(diào)的發(fā)電廠母線（少個(gè)）。四、基本公式1、節(jié)點(diǎn)注入電流2、節(jié)點(diǎn)功率3、不平衡量4、雅可比矩陣（1）i≠j時(shí)（2）i
3、=j時(shí)5、線路功率及損耗五、IEEE30拓?fù)浣Y(jié)構(gòu)IEEE30節(jié)點(diǎn)結(jié)構(gòu)六、算法輸入原始數(shù)據(jù)1、支路參數(shù)（支路數(shù)L=41）始端末端回線數(shù)線路類型線路電阻線路電抗線路電納(B/2)/變比21100.01920.05750.0528031100.04520.18520.0408042100.0570.17370.0368043100.01320.03790.0084052100.04720.19830.0418062100.05810.17630.0374064100.01190.04140.009075100.0460.1160.02040761
4、00.02670.0820.017086100.0120.0420.0090691100.20800.9786101100.55600.9691191000.208001091000.11004121100.25600.93213121000.14001412100.12310.2559001512100.06620.1304001612100.09450.1987001514100.2210.1997001716100.05240.1923001815100.10730.2185001918100.06390.1292002019100.
5、0340.068002010100.09360.209001710100.03240.0845002110100.03480.0749002210100.07270.1499002221100.01160.0236002315100.10.202002422100.1150.179002423100.1320.27002524100.18850.3292002625100.25440.38002725100.10930.20870028271100.39600.9682927100.21980.4153003027100.32020.602
6、7003029100.23990.453300288100.06360.20.04280286100.01690.05990.01302、節(jié)點(diǎn)參數(shù)（節(jié)點(diǎn)數(shù)N=30）編號節(jié)點(diǎn)類型電壓實(shí)部電壓虛部負(fù)荷有功負(fù)荷無功發(fā)電有功發(fā)電無功PV節(jié)點(diǎn)的V并聯(lián)電容111.05000001.050231.04500.2170.1270.801.045032100.0240.012001042100.0760.0160010531.0100.9420.1900.501.010621000001072100.2280.1090010831.0100.300.300.
7、201.0109210000010102100.0580.020010.191131.050000.201.050122100.1120.07500101331.050000.201.050142100.0620.0160010152100.0820.0250010162100.0350.0180010172100.090.0580010182100.0320.0090010192100.0950.0340010202100.0220.0070010212100.1750.112001022210000010232100.0320.0160
8、010242100.0870.0670010.04325210000010262100.0350.02300102721000001028210000010292100.0240
