本文選題：配電網(wǎng) + 最大供電能力�。� 參考：《天津大學》2014年碩士論文

【摘要】：配電系統(tǒng)最大供電能力(Total Supply Capability,TSC)的準確計算具有重要的理論意義和應用價值�，F(xiàn)有TSC計算方法沒有精確計及網(wǎng)絡損耗和電壓降落,本文將潮流方程引入TSC模型,提出了基于潮流計算的TSC模型及求解算法。首先,本文給出了準確評估最大供電能力計算結(jié)果的校驗方法,在N-1安全性校驗中進行潮流計算、更為嚴格。該方法分兩步:第一步基于主變和饋線N-1安全性原則校驗最大供電能力工作點是否安全;第二步增加少量負荷,再進行一次主變和饋線N-1校驗,看是否出現(xiàn)校驗不通過。其次,建立了基于潮流TSC模型,以網(wǎng)絡供負荷(不含網(wǎng)損)最大為目標函數(shù),計及了正常和N-1后負荷轉(zhuǎn)帶的網(wǎng)損和電壓降落,滿足主變及饋線容量約束和電壓約束。模型分為近似的單負荷點模型和精確的多負荷點模型,單負荷點模型將每條饋線負荷等效為一個在饋線末端的負荷點,該模型計算更簡單快速,適用于規(guī)劃網(wǎng)的TSC計算或優(yōu)化調(diào)用TSC計算;多負荷點模型按照網(wǎng)絡負荷點的實際位置進行潮流計算,計算更加精確,適用于現(xiàn)狀網(wǎng)的TSC計算�；诔绷鞯腡SC模型屬于非線性規(guī)劃模型,求解方法具有一定難度。本文提出利用Lingo中的既約廣義梯度算法(GRG)求解非線性規(guī)劃問題,利用前推回代算法解決潮流迭代問題,并針對精確模型的高維和大規(guī)模性,采用稀疏矩陣的技術(shù)進行存儲和建模,減小問題復雜性。最后,利用RBTS擴展算例和較大規(guī)模實際電網(wǎng)算例驗證兩種模型的準確性并比較了與相對不計及潮流TSC方法以及本文兩種模型之間的結(jié)果差別,比較發(fā)現(xiàn)本文方法更加精確。
[Abstract]:The accurate calculation of total Supply capability (TSC) of distribution system has important theoretical significance and application value. The current TSC calculation methods do not accurately take into account the network loss and voltage drop. In this paper, the power flow equation is introduced into the TSC model, and the TSC model based on power flow calculation and its solution algorithm are proposed. First of all, this paper presents a calibration method to accurately evaluate the calculation results of the maximum power supply capacity. The power flow calculation in the N-1 security check is more strict. The method is divided into two steps: the first step is based on the principle of main transformer and feeder N-1 security to check whether the maximum power supply working point is safe or not; the second step is to add a small amount of load and then carry out a check of the main transformer and feed line N-1 to see if the check does not pass. Secondly, based on the power flow TSC model, taking the maximum power supply load (excluding network loss) as the objective function, the network loss and voltage drop of normal and N-1 afterload transposed are taken into account to satisfy the main transformer and feeder capacity constraints and voltage constraints. The model is divided into approximate single load point model and accurate multi load point model. The single load point model equates each feeder load to a load point at the end of the feed line. The calculation of the model is simpler and faster. It is suitable for the TSC calculation of the planning network or the optimal call to the TSC calculation, and the multi-load point model can calculate the power flow according to the actual position of the network load point, so the calculation is more accurate and suitable for the TSC calculation of the current network. The TSC model based on power flow is a nonlinear programming model, and it is difficult to solve the problem. In this paper, the reduced generalized gradient algorithm (GRG) in Lingo is used to solve nonlinear programming problems, and the forward iteration algorithm is used to solve the power flow iteration problem. The sparse matrix technique is used to store and model the problem to reduce the complexity of the problem. Finally, the accuracy of the two models is verified by using RBTS extended examples and larger scale actual power network examples. The results of the two models are compared with the relative disregarding power flow TSC method and the two models in this paper. The comparison shows that the proposed method is more accurate.
【學位授予單位】：天津大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TM732;TM74

【參考文獻】

相關期刊論文 前10條

1 肖峻;李振生;劉世嵩;王成山;;電壓約束及網(wǎng)損對配電網(wǎng)大供電能力計算的影響[J];電力系統(tǒng)自動化;2014年05期

2 肖峻;貢曉旭;賀琪博;蘇步蕓;王成山;;智能配電網(wǎng)N 1安全邊界拓撲性質(zhì)及邊界算法[J];中國電機工程學報;2014年04期

3 肖峻;郭曉丹;王成山;祖國強;;配電網(wǎng)最大供電能力模型解的性質(zhì)[J];電力系統(tǒng)自動化;2013年16期

4 肖峻;張婷;張躍;王成山;;基于最大供電能力的配電網(wǎng)規(guī)劃理念與方法[J];中國電機工程學報;2013年10期

5 肖峻;谷文卓;王成山;;面向智能配電系統(tǒng)的安全域模型[J];電力系統(tǒng)自動化;2013年08期

6 肖峻;貢曉旭;王成山;;配電網(wǎng)最大供電能力與N-1安全校驗的對比驗證[J];電力系統(tǒng)自動化;2012年18期

7 肖峻;谷文卓;郭曉丹;王成山;李方興;;配電系統(tǒng)供電能力模型[J];電力系統(tǒng)自動化;2011年24期

8 劉健;司玉芳;;考慮負荷變化的配電網(wǎng)架安全評估及其應用[J];電力系統(tǒng)自動化;2011年23期

9 葛少云;韓俊;劉洪;郭寅昌;王成山;;計及主變過載和聯(lián)絡容量約束的配電系統(tǒng)供電能力計算方法[J];中國電機工程學報;2011年25期

10 余貽鑫;欒文鵬;;智能電網(wǎng)述評[J];中國電機工程學報;2009年34期

，

本文編號：1848788