本文選題：微電網(wǎng) + 分層控制��； 參考：《浙江大學》2014年碩士論文

【摘要】：進入21世紀以來,隨著電網(wǎng)的發(fā)展,傳統(tǒng)大規(guī)模電網(wǎng)的弊端日趨凸顯,而且近年來世界上已經(jīng)發(fā)生多起大規(guī)模停電事故,以及傳統(tǒng)電網(wǎng)主要依賴的能源也日趨緊張,因此如何能更加有效的利用可再生綠色能源已經(jīng)成為一個重要的課題。微電網(wǎng)的產(chǎn)生,不但一定程度上能減輕能源緊張的問題,同時還能有效的提高電網(wǎng)的可靠性。 由于微電網(wǎng)系統(tǒng)中,為了能使微電網(wǎng)可靠安全的運行,需要各個分布式電源之間協(xié)調(diào)控制運行,而不同的控制結(jié)構(gòu)具有不用的特點,本文首先分析比較了對等控制、主從控制和分層控制,總結(jié)了三種控制策略的利弊,著重分析研究了分層控制結(jié)構(gòu)的控制策略,并且通過MATLAB仿真,進一步驗證說明了分層控制的優(yōu)勢所在。在分層控制中,每層所控制的對象和特點不同,對響應時間要求也有所不同,本文由此提出了每層響應時間的尺度,為之后的通信系統(tǒng)設計打下基礎。 由于微電網(wǎng)的協(xié)調(diào)控制依賴于可靠的通信系統(tǒng),使得通信系統(tǒng)也顯得尤為重要。本文根據(jù)微電網(wǎng)通信系統(tǒng)的特點,提出了采用基于以太網(wǎng)的IEC61850通信協(xié)議來構(gòu)建微電網(wǎng)通信系統(tǒng),根據(jù)IEC61850通信協(xié)議,對微電網(wǎng)通信系統(tǒng)進行建模,并且根據(jù)分層控制結(jié)構(gòu)對于響應時間的不同要求,一次控制選擇GOOSE服務協(xié)議,二次、三次控制(經(jīng)濟調(diào)度)選擇MSS服務協(xié)議。為了能在調(diào)試過程中,能加直觀的監(jiān)測微電網(wǎng)系統(tǒng)的運行狀態(tài),利用LabVEW和PLC設計一套數(shù)據(jù)采集系統(tǒng),配合微電網(wǎng)的建設。
[Abstract]:Since the 21st century, with the development of the power grid, the disadvantages of the traditional large-scale power grid have become increasingly prominent, and in recent years, there have been many large-scale power outages in the world, and the energy sources that the traditional power grid relies on are becoming increasingly tense. Therefore, how to use renewable green energy more effectively has become an important issue. The generation of microgrid can not only alleviate the problem of energy shortage, but also improve the reliability of power grid effectively. In order to make the microgrid run reliably and safely, it is necessary to coordinate the control operation among the distributed power sources. However, different control structures have the characteristics of no need, so this paper first analyzes and compares the peer-to-peer control. The advantages and disadvantages of the three control strategies are summarized, and the control strategies of the hierarchical control structure are analyzed and studied. The advantages of the hierarchical control are further verified by MATLAB simulation. In hierarchical control, different objects and characteristics are controlled in each layer, and the response time requirements are also different. In this paper, the scale of response time in each layer is proposed, which lays the foundation for the design of communication system. The coordinated control of microgrid depends on reliable communication system, which makes communication system especially important. According to the characteristics of microgrid communication system, this paper puts forward to use IEC61850 communication protocol based on Ethernet to construct microgrid communication system. According to IEC61850 communication protocol, the microgrid communication system is modeled. According to the different requirements of the hierarchical control structure for response time, the first control selects the goose service protocol, and the second and third control (economic dispatch) selects the MSS service protocol. In order to monitor the running state of microgrid system intuitively, a data acquisition system is designed by using LabVEW and PLC in the process of debugging, which can cooperate with the construction of microgrid.
【學位授予單位】：浙江大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TM73

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本文編號：2020880