摘要
摘要：
本文所分析的配電網(wǎng)理論線損計(jì)算，主要是針對(duì)0.4kV配電網(wǎng)進(jìn)行理論線損計(jì)算。0.4kV配電網(wǎng)主要包括低壓配電線路和計(jì)量裝置等。由于計(jì)量裝置的數(shù)據(jù)較難收集，因此本文只計(jì)算配電線路上的損耗。
低壓配電網(wǎng)結(jié)構(gòu)比較復(fù)雜，分支線路多，負(fù)荷性質(zhì)復(fù)雜，歷史資料不全，而且配電網(wǎng)規(guī)模大，相關(guān)電網(wǎng)參數(shù)計(jì)算難度大，用傳統(tǒng)的0.4kV配電網(wǎng)理論線損計(jì)算方法進(jìn)行計(jì)算，需要較多的技術(shù)資料和歷史資料，計(jì)算量大，計(jì)算過程復(fù)雜，不易于實(shí)際應(yīng)用。因此，本文的等值電阻法是采用配電變壓器總表電量與居民用戶表電量進(jìn)行計(jì)算低壓配電網(wǎng)等值電阻。
本文分析了目前國(guó)內(nèi)外配電網(wǎng)線損計(jì)算的分析現(xiàn)狀和發(fā)展趨勢(shì)，具體分析了當(dāng)前較為成熟的一些適合0.4kV配電網(wǎng)的線損計(jì)算方法，通過對(duì)其特點(diǎn)的綜合比較，提出了適合于0.4kV配電網(wǎng)線損計(jì)算方法，分析了沿選定配電線路理論線損的計(jì)算參數(shù)。
本文最后利用Delphi編程軟件計(jì)算了低壓配電線路線損大小，并給出了分析結(jié)果。

關(guān)鍵詞：配電網(wǎng)，線損計(jì)算，計(jì)算參數(shù)，算法軟件














The Analysis And Calculation Of line Loss In Low-voltage Distribution Network
Abstract
In this paper, the distribution network of line loss calculation, mainly the distribution network of 0.4 kV line loss calculation ,it was more mainly part and included distribution lines and so on. As measurement devices more difficult to collect the data, this paper only on the calculation of the distribution line loss.
The 0.4kV distribution networks structure were more complicate,and had many branches,many kinds of loads,historical data were not whole,big network and network parameterswere difficult to calculate. Using traditional method need more technique data and historical data to calculate,calculating was great capacity,and the process of calculating was complication,it was not easy to calculate in the actual application. Therefore, the paper equivalent of resistance used is the Summary of power distribution transformers and residential users table to calculate low-voltage electricity distribution network equivalent resistance.
This paper analyses the current domestic and international distribution network line loss calculation of the status quo and development trend, a more specific analysis of the current maturity of several fitness 0.4 kV distribution network of line loss calculation method, through its integrated features, made suitable for 0.4kV distribution network line loss calculation method to study the theory of distribution lines along the selected line loss of parameters.
Finally, use of Delphi programming software calculate the low-voltage distribution lines line loss size, and gives the results.

Key words: Power Distribution Network,Calculation of the Energy Losses,Parameter Calibration,Calculation Method Software



目 錄
摘要 I
Abstract II
第1章 緒論 1
1.1 配電網(wǎng)理論線損分析的目的和意義 1
1.1.1 分析的目的 1
1.1.2 分析的意義 1
1.2 配電網(wǎng)線損計(jì)算分析現(xiàn)狀 2
1.2.1 配電網(wǎng)的特點(diǎn) 2
1.2.2 配電網(wǎng)線損計(jì)算的范圍 3
1.2.3 分析現(xiàn)狀 4
1.3 本文的主要工作 4
第2章 配電網(wǎng)理論線損計(jì)算的基礎(chǔ) 6
2.1 線損的構(gòu)成和分類 6
2.2 配電網(wǎng)絡(luò)元件的損耗計(jì)算 6
2.2.1 低壓配電線路損失電量的計(jì)算 7
2.2.2 接戶線損失電量的計(jì)算 8
2.2.3 電度表及其它儀表設(shè)備損失電量的計(jì)算 9
2.3 線損計(jì)算代表日的選取 9
第3章 低壓配電網(wǎng)理論線損計(jì)算方法 11
3.1 配電網(wǎng)理論線損計(jì)算的含義 11
3.2 傳統(tǒng)的配電網(wǎng)理論線損計(jì)算方法分析 11
3.2.1 電壓損失法 11
3.2.2 等值電阻法 12
3.2.3 等值電阻法分析 13
3.3 本文計(jì)算方法 14
3.3.1 等值電阻法的損耗計(jì)算方法 14
3.3.2 本文等值電阻法分析 16
3.4 線損影響因素 16
第4章 理論線損計(jì)算系統(tǒng)軟件 17
4.1 程序設(shè)計(jì)基本思路 17
4.1.1 面向?qū)ο蠹夹g(shù) 17
4.1.2 程序項(xiàng)目組織 18
4.2 程序結(jié)構(gòu)分析 19
4.3 程序具體實(shí)現(xiàn)過程 20
4.4 結(jié)論 23
第5章 配電網(wǎng)理論線損計(jì)算實(shí)例 24
5.1 配電網(wǎng)線損計(jì)算需要的原始數(shù)據(jù) 24
5.2 0.4kV理論線損計(jì)算具體算例 24
結(jié) 論 27
參考文獻(xiàn)

參考文獻(xiàn)
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