這是大學(xué)本科畢業(yè)設(shè)計(jì)論文，文章論述了用隨機(jī)潮流法進(jìn)行分析電網(wǎng)的故障，采用數(shù)學(xué)模型


摘要
  電力系統(tǒng)運(yùn)行中存在大量的不確定因素，如負(fù)荷波動(dòng)、發(fā)電機(jī)故障停運(yùn)及輸電元件故障等等。一般的潮流計(jì)算不但計(jì)算量很大而且很難反映全面的情況。概率潮流計(jì)算運(yùn)用了概率統(tǒng)計(jì)方法處理系統(tǒng)運(yùn)行中的隨機(jī)變化因素，并且得出了和實(shí)際情況相近的隨機(jī)出現(xiàn)的概率值。
首先，本文介紹潮流計(jì)算的直流法，其中包括直流法的步驟，直流法的模型，直流法的計(jì)算。而本文主要運(yùn)用的是直流法的計(jì)算方法，來(lái)計(jì)算電力系統(tǒng)中的潮流。
其次，介紹了隨機(jī)潮流的基本概念，隨機(jī)潮流的一些計(jì)算方法，如：蒙特卡羅仿真隨機(jī)潮流算法，保留非線性的電力系統(tǒng)隨機(jī)潮流算法，半不變量法潮流計(jì)算等。
最后，本文用直流方法和蒙特卡羅仿真隨機(jī)潮流算法相結(jié)合的步驟，采用MATLAB程序語(yǔ)言編寫(xiě)程序算法，和前期PSASP計(jì)算出來(lái)的潮流結(jié)果進(jìn)行比較，使其結(jié)果趨于收斂為止。

Abstract
There are many uncertain factors in power system operation, such as fluctuation of loads, the forced outage of generation and the fault in transformer equipments. the generalized power flow needs much computation and is hard to reflect the all-around conditions，and the actual situation and come to a similar value of the probability of a random.
First of all, this paper flow calculation of the DC law, including the steps of DC, DC law model, the DC method of calculation. The paper is the use of the DC law method of calculation to calculate the power system in the trend.
Secondly, on the basic concept of random trend, the trend of the number of random calculation methods, such as: Monte Carlo simulation randomly trend algorithm, to retain the power system of nonlinear stochastic trend algorithm, semi-invariant of the trend calculation.
Finally, DC Monte Carlo simulation methods and algorithms were the trend of combining the steps, using MATLAB programming language programming algorithms, and pre-PSASP calculated by the trend results were compared to the results so far tend to convergence.