本文選題：10kV線路　切入點(diǎn)：無功補(bǔ)償節(jié)點(diǎn)位置　出處：《鄭州大學(xué)》2014年碩士論文

【摘要】：我國電力工業(yè)發(fā)展迅猛，配電網(wǎng)的電力負(fù)荷不斷增長(zhǎng)，無功功率的需求也在不斷地增長(zhǎng)，無功功率是保證電力系統(tǒng)電能質(zhì)量、降低電網(wǎng)損耗以及保證其安全運(yùn)行所不可缺少的部分。配電網(wǎng)線路中多以10kV線路為主，因此做好10kV線路的無功補(bǔ)償具有重要的意義,是建設(shè)好配電網(wǎng)的一個(gè)不可或缺的環(huán)節(jié)。 本文主要介紹了無功補(bǔ)償?shù)谋尘耙饬x、線路無功補(bǔ)償?shù)脑�，并�?duì)不同補(bǔ)償方式的優(yōu)缺點(diǎn)進(jìn)行比較分析，桿塔上并聯(lián)電容器這種補(bǔ)償方式，一次性投資小、后期維護(hù)方便，比較適合長(zhǎng)距離配電線路。根據(jù)配電網(wǎng)自身的特點(diǎn)，本文采用前推回代法進(jìn)行潮流計(jì)算，并編寫計(jì)算程序，經(jīng)過實(shí)例驗(yàn)證，此種算法計(jì)算速度快，方法簡(jiǎn)單，能夠可靠的收斂。 本文采用了適用于任何負(fù)荷結(jié)構(gòu)和分布的配電網(wǎng)的數(shù)學(xué)模型，，并且以網(wǎng)損最小為目標(biāo)函數(shù)。利用無功二次精確矩的方法對(duì)節(jié)點(diǎn)位置進(jìn)行選擇，并引入了修正系數(shù)，引入修正系數(shù)之后使得選擇結(jié)果更符合實(shí)際的情況。在補(bǔ)償位置確定的情況下，引入了拉格朗日乘子來求補(bǔ)償容量的最優(yōu)解，此方法根據(jù)極值的必要條件，化為線性方程組的求解問題，便于編程計(jì)算，十分簡(jiǎn)單和高效。在息縣10kV線路無功補(bǔ)償實(shí)際工程中運(yùn)用本文所論述的方法進(jìn)行理論計(jì)算分析，并結(jié)合工程實(shí)際情況，安裝后收到了良好的效果。 此外，文章又詳細(xì)介紹了線路無功補(bǔ)償監(jiān)測(cè)系統(tǒng)，它采用GPRS遠(yuǎn)程通訊技術(shù)來實(shí)現(xiàn)后臺(tái)監(jiān)控主機(jī)與控制器之間的數(shù)據(jù)采集與交換，并具體介紹了通訊模塊DTU的設(shè)置過程，對(duì)后臺(tái)軟件的功能做了詳細(xì)的介紹。
[Abstract]:With the rapid development of power industry in China, the power load of distribution network is increasing, and the demand of reactive power is also increasing. Reactive power is to ensure the power quality of power system. It is important to reduce power loss and ensure its safe operation. In distribution network, 10kV line is the main line, so it is of great significance to do well the reactive power compensation of 10kV line, which is an indispensable link in the construction of distribution network. This paper mainly introduces the background significance of reactive power compensation, the principle of line reactive power compensation, and compares the advantages and disadvantages of different compensation methods. It is more suitable for long distance distribution lines. According to the characteristics of distribution network, this paper adopts forward push-back method to calculate power flow, and compiles the calculation program. The example proves that this algorithm has the advantages of fast calculation speed, simple method and reliable convergence. In this paper, the mathematical model of distribution network suitable for any load structure and distribution is adopted, and the minimum network loss is taken as the objective function. The location of nodes is selected by using the method of quadratic accurate moments of reactive power, and the correction coefficient is introduced. When the compensation position is determined, the Lagrangian multiplier is introduced to find the optimal solution of the compensation capacity, which is based on the necessary conditions of extreme value. The method discussed in this paper is used in the practical project of reactive power compensation for the 10kV line in Xixian county, and the method is used to calculate and analyze the problem in theory, and combined with the actual situation of the project, it is very simple and efficient to solve the problem of solving the linear equation group. Good effect has been received after installation. In addition, the paper also introduces the line reactive power compensation monitoring system in detail, which uses GPRS remote communication technology to realize the data acquisition and exchange between the background monitor host and the controller, and introduces the setting process of the communication module DTU in detail. The function of background software is introduced in detail.
【學(xué)位授予單位】：鄭州大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TM761.12

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 關(guān)飛;吳小美;劉朝輝;;基于GPRS通訊的配變監(jiān)測(cè)管理系統(tǒng)[J];電測(cè)與儀表;2008年01期

2 軋超;李林川;;輻射型配電網(wǎng)絡(luò)無功補(bǔ)償配置的一種算法[J];電測(cè)與儀表;2009年07期

3 單永梅;包文俊;卿旺平;葛春;;10kV農(nóng)村配電網(wǎng)桿上無功補(bǔ)償?shù)挠?jì)算[J];電力電容器與無功補(bǔ)償;2011年01期

4 郅建杰;;戶外柱上高壓無功動(dòng)態(tài)補(bǔ)償裝置[J];電力設(shè)備;2006年09期

5 王丹,常寶立;一種用于配網(wǎng)潮流計(jì)算的節(jié)點(diǎn)編號(hào)新方法[J];電力系統(tǒng)及其自動(dòng)化學(xué)報(bào);2003年01期

6 胡彩娥,楊仁剛;用電力系統(tǒng)分區(qū)方法確定無功源最佳配置地點(diǎn)[J];電力系統(tǒng)及其自動(dòng)化學(xué)報(bào);2004年03期

7 顏偉,徐鄭;10kV饋線無功補(bǔ)償選點(diǎn)的負(fù)荷功率阻抗矩方法[J];電力系統(tǒng)及其自動(dòng)化學(xué)報(bào);2005年05期

8 矯志宏,蔡中勤,郭志忠;輻射型配電網(wǎng)無功補(bǔ)償?shù)木_矩法[J];繼電器;2002年09期

9 李惠玲;高振江;龐占星;盛萬興;孟曉麗;;基于全網(wǎng)無功優(yōu)化的配電網(wǎng)無功優(yōu)化系統(tǒng)的設(shè)計(jì)[J];繼電器;2008年10期

10 馬鋒福;王瑋;徐麗杰;倪平浩;劉斌;;電力桿塔遠(yuǎn)程監(jiān)防系統(tǒng)中無線通信技術(shù)的研究[J];電力系統(tǒng)保護(hù)與控制;2008年24期

相關(guān)博士學(xué)位論文 前1條

1 譚東明;農(nóng)村配電網(wǎng)無功優(yōu)化智能技術(shù)研究[D];沈陽農(nóng)業(yè)大學(xué);2011年

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