本文選題：云計算技術(shù)　切入點：模型融合　出處：《天津大學》2014年碩士論文

【摘要】：隨著我國社會的不斷發(fā)展,對電力的需求也在逐年增加。配電網(wǎng)作為電力系統(tǒng)最終與用戶相連的重要組成部分,直接影響到用戶用電的可靠性與電能質(zhì)量。在配電網(wǎng)分析計算中,配電網(wǎng)潮流計算占有重要地位,實際生產(chǎn)過程中,潮流計算是對配電網(wǎng)進行優(yōu)化規(guī)劃和運行分析的基礎。然而,配電系統(tǒng)具有節(jié)點多、規(guī)模大的特點,為了滿足構(gòu)建智能電網(wǎng)的需要,亟待開發(fā)一種解決大規(guī)模配電系統(tǒng)潮流分析的計算模式。隨著云計算技術(shù)的高速發(fā)展,把云計算技術(shù)和電力系統(tǒng)分析相結(jié)合成為重要的研究方向。本文在研究了云計算技術(shù)和配電網(wǎng)典型元件模型的基礎上,針對配電網(wǎng)的特點,將云計算技術(shù)應用于配電網(wǎng)潮流計算中,主要工作如下:深入介紹了云計算技術(shù)的原理、發(fā)展現(xiàn)狀以及其獨有的特點和優(yōu)勢,探究了云計算技術(shù)與其他計算模式之間的區(qū)別和聯(lián)系。并針對配電網(wǎng)軟硬件以及平臺異構(gòu)的特點,提出配電網(wǎng)異構(gòu)模型融合,利用異構(gòu)模型融合及云計算技術(shù),搭建了配電網(wǎng)虛擬化模型中心,并在此基礎上構(gòu)建了配電網(wǎng)云平臺。針對配電網(wǎng)的電氣和拓撲特征與輸電網(wǎng)不同的特點,結(jié)合配電網(wǎng)的典型元件模型以及云平臺的特點,提出了基于云平臺的配電網(wǎng)改進前推回代潮流算法。對配電網(wǎng)絡結(jié)構(gòu)進行拓撲分析并在此基礎上進行網(wǎng)絡劃分,按照負荷相對均衡以及各計算節(jié)點間通訊損耗最小為原則將配電網(wǎng)分為I+R個子網(wǎng);在前推及回代過程中,各子網(wǎng)間通過聯(lián)絡線分別發(fā)送和接收更新的電流及電壓,以實現(xiàn)子網(wǎng)間的交互�；贑++語言和MPICH2消息傳遞接口編寫了基于云平臺的配電網(wǎng)改進前推回代潮流計算程序,利用33節(jié)點和292節(jié)點配網(wǎng)系統(tǒng)算例進行驗證,并對算例結(jié)果進行分析,驗證了該算法的有效性。
[Abstract]:With the development of our society, the demand for electric power is increasing year by year. Power flow calculation plays an important role in the distribution network analysis and calculation, and in the actual production process, the distribution network power flow calculation plays an important role in the actual production process. Power flow calculation is the basis of optimal planning and operation analysis of distribution network. However, distribution system has many nodes and large scale, in order to meet the needs of building smart grid. It is urgent to develop a computing model to solve the power flow analysis of large-scale distribution system. With the rapid development of cloud computing technology, Combining cloud computing technology with power system analysis is an important research direction. Based on the research of cloud computing technology and the typical component model of distribution network, this paper aims at the characteristics of distribution network. The main work of applying cloud computing technology to power flow calculation of distribution network is as follows: the principle of cloud computing technology, its development status and its unique characteristics and advantages are introduced in depth. This paper probes into the difference and relation between cloud computing technology and other computing modes. According to the characteristics of software and hardware of distribution network and platform heterogeneity, this paper puts forward the heterogeneous model fusion of distribution network, using heterogeneous model fusion and cloud computing technology. The distribution network virtualization model center is built and the cloud platform of distribution network is constructed on this basis. According to the characteristics of electrical and topological characteristics of distribution network and transmission network, combined with the typical component model of distribution network and the characteristics of cloud platform. This paper presents an improved forward push-back generation power flow algorithm for distribution network based on cloud platform. The topology of distribution network structure is analyzed and the network is partitioned on this basis. According to the principle of relative balance of load and minimum communication loss between nodes, the distribution network is divided into I / R subnet, and in the process of forward and back generation, each subnet transmits and receives the updated current and voltage respectively through the tie line. In order to realize the interaction between subnets, based on C language and MPICH2 message passing interface, the program of power flow calculation for distribution network improvement based on cloud platform is written, and the calculation examples of 33-node and 292-node distribution network system are used to verify it. An example is given to verify the effectiveness of the algorithm.
【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】：TM744

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