本文選題：調(diào)度自動(dòng)化　切入點(diǎn)：EMS系統(tǒng)　出處：《華北電力大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

【摘要】：電網(wǎng)調(diào)度自動(dòng)化系統(tǒng)可使調(diào)度人員可以及時(shí)的了解到電網(wǎng)的實(shí)時(shí)運(yùn)行狀況,監(jiān)視每個(gè)變電所的實(shí)時(shí)負(fù)荷,對(duì)電網(wǎng)的經(jīng)濟(jì)運(yùn)行以及電網(wǎng)出現(xiàn)故障可以及時(shí)地做出相應(yīng)的對(duì)策措施,可確保電網(wǎng)的安全、經(jīng)濟(jì)、可靠地正常運(yùn)行,研究電網(wǎng)調(diào)度自動(dòng)化系統(tǒng)的應(yīng)用具有重要的工程實(shí)用價(jià)值。 本文根據(jù)電網(wǎng)調(diào)動(dòng)自動(dòng)化系統(tǒng)的當(dāng)前運(yùn)行管理狀況分析,結(jié)合本地區(qū)電網(wǎng)運(yùn)行實(shí)際情況,主要研究了負(fù)荷預(yù)測(cè)和潮流計(jì)算在系統(tǒng)中的應(yīng)用。在負(fù)荷預(yù)測(cè)中,首先對(duì)現(xiàn)有的幾種負(fù)荷預(yù)測(cè)方法進(jìn)行比較分析,然后選擇出適合本地區(qū)的負(fù)荷預(yù)測(cè)方法。首先根據(jù)本地電網(wǎng)的環(huán)境因素,將天氣情況進(jìn)行量化分類,然后運(yùn)用線性回歸法勾畫(huà)出負(fù)荷的大致趨勢(shì)和數(shù)量級(jí),最后利用神經(jīng)網(wǎng)絡(luò)法對(duì)誤差進(jìn)行修正,得出結(jié)論。與其它方法相比較,此種方法更加適用于本地區(qū),并且其進(jìn)行誤差修正后的負(fù)荷預(yù)測(cè)值準(zhǔn)確率很高。在潮流計(jì)算中,對(duì)于高斯-塞德?tīng)柗�、牛頓-拉夫遜潮流算法、快速解耦算法(PQ分解法)三種常用的潮流計(jì)算方法進(jìn)行了優(yōu)缺點(diǎn)的比較。結(jié)合實(shí)際工作經(jīng)驗(yàn),將牛頓-拉夫遜潮流算法進(jìn)行了改進(jìn),即首先采用快速解耦算法(P—Q分解法)進(jìn)行初始迭代,然后再轉(zhuǎn)入牛頓-拉夫遜法求解潮流。而且可根據(jù)需求和電網(wǎng)的結(jié)構(gòu)特征自行決定迭代次數(shù),具有很好的實(shí)用價(jià)值。
[Abstract]:Power grid dispatching automation system can make the dispatching personnel can timely to understand the real-time status of the grid, monitor each substation real-time load, on the economic operation of power network and power grid failure can make timely and appropriate measures, to ensure grid safety, economy, running reliably, has important practical engineering the value of application of dispatching automation system of power grid.
In this paper, according to the power to mobilize the automation system of the operation and management status analysis, combined with the actual situation of power grid operation, mainly studies the load forecasting and power flow calculation is applied in the system. In the load forecasting, firstly, several existing load forecasting methods were compared and analyzed, and then choose suitable prediction methods of local load. According to the local power grid environment, the weather conditions were quantified classification, then regression method lays out the load trend and magnitude of error using linear, finally to the amendment, draw the conclusion. By using the neural network method is compared with other methods, this method is more suitable for the local area, and its error correction the load forecast accuracy rate is very high. In power flow calculation, the Gauss Seidel method, Newton Raphson power flow algorithm, fast decoupled algorithm (PQ method) three Common power flow calculation methods are compared. The advantages and disadvantages of the actual work experience, the Newton Raphson power flow algorithm is improved. Firstly, using fast decoupled algorithm (P - Q decomposition) of the initial iteration, and then transferred to the Newton Raphson method. According to the structural characteristics and the trend of demand and the power to decide the number of iterations, and has good practical value.

【學(xué)位授予單位】：華北電力大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TM734

【參考文獻(xiàn)】

相關(guān)期刊論文 前4條

1 杜君旭;;電力系統(tǒng)調(diào)度自動(dòng)化的技術(shù)與優(yōu)化[J];中國(guó)新技術(shù)新產(chǎn)品;2010年15期

2 金雪峰;;調(diào)度自動(dòng)化系統(tǒng)應(yīng)用[J];中小企業(yè)管理與科技(上旬刊);2010年09期

3 費(fèi)建瓊;;淺談對(duì)電網(wǎng)調(diào)度自動(dòng)化系統(tǒng)的維護(hù)[J];中小企業(yè)管理與科技(下旬刊);2012年10期

4 徐曉;;試論電網(wǎng)調(diào)度自動(dòng)化系統(tǒng)中EMS技術(shù)的運(yùn)用[J];中國(guó)新技術(shù)新產(chǎn)品;2012年23期

，

本文編號(hào)：1647832