基于支路復(fù)功率靈敏度的故障后電壓快速算法的研究討論畢業(yè)論文

1、[在此處鍵入]目錄摘要............................................................................................................1第1章緒論..............................................................................................3

2、1.1課題背景.........................................................................................................31.2選題意義....................................................................................................

3、.....31.3潮流計(jì)算及其現(xiàn)狀及其發(fā)展趨勢(shì).................................................................41.4本畢業(yè)設(shè)計(jì)主要工作.....................................................................................4第2章電力系統(tǒng)潮流計(jì)算基本原理..................

4、....................................52.1電力網(wǎng)絡(luò)的數(shù)學(xué)模型.....................................................................................52.1.1電力網(wǎng)絡(luò)的基本方程式......................................................................

5、..52.1.2自導(dǎo)納和互導(dǎo)納的確定方法................................................................62.2潮流計(jì)算的數(shù)學(xué)模型.....................................................................................82.2.1潮流計(jì)算的節(jié)點(diǎn)類(lèi)型.......................

6、......................................................82.2.2潮流計(jì)算基本方程.................................................................................82.3潮流計(jì)算的約束條件..........................................................

7、.........................10第3章牛頓拉夫遜潮流計(jì)算理論分析................................................113.1概述...............................................................................................................113.2牛頓法基本原

8、理...........................................................................................113.3牛頓法潮流計(jì)算方程...................................................................................153.3.1節(jié)點(diǎn)功率方程..................

9、.....................................................................153.3.2修正方程...............................................................................................16[在此處鍵入]基于支路復(fù)功率靈敏度的故障后電壓快速算法研究基于支路復(fù)功率靈敏度的故障后

10、電壓快速算法研究學(xué)生：xxx指導(dǎo)教師：xxx（xxxxxxxx）摘要摘要摘要：電力系統(tǒng)潮流計(jì)算是研究電力系統(tǒng)穩(wěn)態(tài)運(yùn)行情況的一種重要的分析計(jì)算，在利用連續(xù)潮流計(jì)算得到無(wú)故障網(wǎng)絡(luò)的靜態(tài)電壓穩(wěn)定臨界點(diǎn)的基礎(chǔ)上。提出了基于支路視在功率靈敏度的N1網(wǎng)絡(luò)電壓快速計(jì)算方法。支路故障采用故障開(kāi)斷參數(shù)模擬，首先通過(guò)牛頓潮流計(jì)算出故障前網(wǎng)絡(luò)節(jié)點(diǎn)電壓，然后利用已收斂潮流修正方程式對(duì)支開(kāi)斷參數(shù)求導(dǎo)，從而計(jì)算出電壓對(duì)相應(yīng)支路開(kāi)斷參數(shù)的導(dǎo)數(shù)，進(jìn)一步得到節(jié)點(diǎn)電壓對(duì)故

11、障支故障前視在功率的導(dǎo)數(shù)，最后根據(jù)視在功率靈敏度修正故障前網(wǎng)絡(luò)電壓，得到故障后網(wǎng)絡(luò)電壓。方法特點(diǎn)是在計(jì)算不同支路故障的導(dǎo)數(shù)時(shí)共用潮流計(jì)算收斂時(shí)的雅可比矩陣，不用重新進(jìn)行因子表分解。由于節(jié)點(diǎn)電壓與支路功率之間的良好線性關(guān)系，所提方法計(jì)算精度較高。關(guān)鍵詞：關(guān)鍵詞：支路開(kāi)斷參數(shù)；靈敏度分析；故障電壓；電力系統(tǒng)潮流計(jì)算；牛頓拉普遜法；視在功率Abstract：PowerFlowCalculationofPowerSystemisanimptan

12、tanalysiscalculationofpowersystemsteadystateoperationwhichaccdingtothegivenoperatingconditionssystemwiringtodeterminethevariouspartsofthepowersystemrunningstate.AfastaccuratealgithmfcalculatingthenodevoltageofN1wkispropo