【摘要】：近年來隨著各行業(yè)對(duì)電力需求的持續(xù)增長以及傳統(tǒng)能源供應(yīng)的日漸短缺,主動(dòng)配電網(wǎng)以其智能、靈活、可持續(xù)發(fā)展的特點(diǎn)逐漸獲得了普遍的認(rèn)可和廣泛的應(yīng)用。區(qū)別于傳統(tǒng)配電網(wǎng)的供電模式,主動(dòng)式配電網(wǎng)一方面增強(qiáng)了對(duì)分散能源的綜合利用,大大提高了電力系統(tǒng)對(duì)綠色能源的吸納能力,優(yōu)化了一次能源的配比結(jié)構(gòu),幫助當(dāng)前電力系統(tǒng)實(shí)現(xiàn)了更進(jìn)一步的可持續(xù)發(fā)展；然而另一方面,由于其供電模式由過去的單向樹型結(jié)構(gòu)轉(zhuǎn)變?yōu)楝F(xiàn)在的雙向環(huán)型結(jié)構(gòu),傳統(tǒng)的電力系統(tǒng)分析方式在主動(dòng)配電網(wǎng)的規(guī)劃、運(yùn)行、優(yōu)化等方面已經(jīng)暴露出諸多的局限性；此外,由于以光伏、風(fēng)能等為代表的分布式電源受環(huán)境影響較大,其對(duì)配電網(wǎng)的廣泛滲入必然引起系統(tǒng)電能質(zhì)量的波動(dòng)和改變。因此,針對(duì)主動(dòng)配電網(wǎng)的運(yùn)行特性和工作特點(diǎn),探索一種有效的規(guī)劃和分析手段來補(bǔ)充傳統(tǒng)電力系統(tǒng)分析方式在主動(dòng)配電網(wǎng)研究中的不足已成為當(dāng)前電力系統(tǒng)研究的一個(gè)重要方向。復(fù)雜網(wǎng)絡(luò)理論作為分析和研究網(wǎng)絡(luò)系統(tǒng)特性的有效手段,近年來在互聯(lián)網(wǎng)、物聯(lián)網(wǎng)、生物分子網(wǎng)絡(luò)等領(lǐng)域受到了越來越多的關(guān)注和應(yīng)用,而其在電力系統(tǒng)網(wǎng)絡(luò)建模、穩(wěn)定性分析等方面的應(yīng)用更是成為一個(gè)電力系統(tǒng)研究領(lǐng)域的一個(gè)熱門的課題。然而目前,其在主動(dòng)配電網(wǎng)方面的應(yīng)用研究還有待進(jìn)一步的發(fā)展。本文正是在研究了復(fù)雜網(wǎng)絡(luò)相關(guān)理論的基礎(chǔ)上,充分分析了主動(dòng)配電網(wǎng)的工作特性和運(yùn)行特點(diǎn),發(fā)掘兩者的共同點(diǎn)并利用復(fù)雜網(wǎng)絡(luò)理論在研究網(wǎng)絡(luò)方面的優(yōu)勢(shì)和相關(guān)基礎(chǔ)對(duì)主動(dòng)配電網(wǎng)系統(tǒng)的動(dòng)態(tài)建模、故障傳播特性、系統(tǒng)穩(wěn)定性分析、同步與協(xié)調(diào)優(yōu)化調(diào)度策略研究等方面進(jìn)行了研究。本文在對(duì)主動(dòng)配電網(wǎng)的增長、重連、斷開等拓?fù)涮匦赃M(jìn)行研究的基礎(chǔ)上,通過引入一個(gè)“位置鏈接概率”的概念和網(wǎng)絡(luò)衰減的機(jī)制,提出了一種新的主動(dòng)配電網(wǎng)動(dòng)態(tài)演化模型。該模型的統(tǒng)計(jì)特性揭示出主動(dòng)配電網(wǎng)的節(jié)點(diǎn)度分布具有冪律特性,而且其“節(jié)點(diǎn)移除概率”會(huì)對(duì)網(wǎng)絡(luò)的動(dòng)態(tài)演化特性以及魯棒性產(chǎn)生極其重要的影響。這些宏觀拓?fù)涮匦苑矫娴陌l(fā)現(xiàn)可以為主動(dòng)配電網(wǎng)在規(guī)劃、脆弱性分析、故障預(yù)測(cè)以及提高網(wǎng)絡(luò)的運(yùn)行效費(fèi)比等方面產(chǎn)生重要的指導(dǎo)意義和應(yīng)用價(jià)值。通過植入網(wǎng)絡(luò)鄰居邊的概念將有向性引入到網(wǎng)絡(luò)相繼故障的研究中。此外,通過定義隨機(jī)攻擊、“最小入度”攻擊和“最大出度”攻擊三種故障方式,分別研究了不同初始故障類型對(duì)有向無標(biāo)度網(wǎng)絡(luò)、有向隨機(jī)網(wǎng)絡(luò)以及IEEE 118-bus系統(tǒng)的影響及其傳播特性,證明了網(wǎng)絡(luò)相繼故障的傳播與網(wǎng)絡(luò)流的方向性以及初始故障類型具有密切的關(guān)系,更與初始負(fù)荷的大小和網(wǎng)絡(luò)線路的額定容量有關(guān)。這些結(jié)果對(duì)于避免網(wǎng)絡(luò)相繼故障的發(fā)生和傳播具有重要的價(jià)值。在理論研究了復(fù)雜網(wǎng)絡(luò)同步性并充分證明其同步與協(xié)調(diào)運(yùn)行可行性的基礎(chǔ)上,針對(duì)主動(dòng)配電網(wǎng)的運(yùn)行特點(diǎn),本文提出了一種多自治微網(wǎng)電能優(yōu)化協(xié)調(diào)調(diào)度策略,借助儲(chǔ)能設(shè)備的作用實(shí)現(xiàn)分布式電能的充分利用和系統(tǒng)重要負(fù)荷的最大供電。該策略通過合理的構(gòu)建微網(wǎng)拓?fù)潢P(guān)系矩陣,采用改進(jìn)的最小生成樹算法確定最優(yōu)的供用電關(guān)系；利用線性矩陣不等式算法選擇添加或者刪除非重要負(fù)荷,進(jìn)而生成新的多自治微網(wǎng)結(jié)構(gòu)。最后,通過一系列的實(shí)驗(yàn)證明所提策略在提高系統(tǒng)整體電能利用率以及對(duì)重要負(fù)荷的持續(xù)安全供電方面都具有有效性。在實(shí)驗(yàn)和仿真的過程中,本文以IEEE標(biāo)準(zhǔn)測(cè)試系統(tǒng)為研究對(duì)象,保證了實(shí)驗(yàn)結(jié)果的準(zhǔn)確性和有效性,為相關(guān)研究結(jié)果提供了可靠的依據(jù)。根據(jù)不同的問題特點(diǎn)和對(duì)象特性,在使用復(fù)雜網(wǎng)絡(luò)對(duì)主動(dòng)配電網(wǎng)系統(tǒng)進(jìn)行分析和研究的過程中,本文充分利用了復(fù)雜網(wǎng)絡(luò)的理論基礎(chǔ)、研究手段和思想方法,從而為問題的有效解決和方法的廣泛推廣與擴(kuò)展奠定了重要的基礎(chǔ)。
[Abstract]:With the continuous growth of power demand and the shortage of traditional energy supply in various industries in recent years, the active distribution network has been widely accepted and widely used in its intelligent, flexible and sustainable development. the invention is different from the power supply mode of the traditional distribution network, the active power distribution network enhances the comprehensive utilization of the dispersed energy on the one hand, greatly improves the absorption capacity of the power system to the green energy, optimizes the matching structure of the energy source, but on the other hand, because the power supply mode is changed from the past one-way tree structure to the present two-way ring-type structure, the traditional power system analysis mode is in the planning and operation of the active power distribution network, In addition, because the distributed power supply represented by photovoltaic, wind energy and so on is affected by the environment, the extensive infiltration of the distribution network will inevitably cause the fluctuation and change of the electric energy quality of the system. Therefore, aiming at the operation characteristics and working characteristics of the active power distribution network, an effective planning and analysis method is explored to supplement the deficiency of the traditional power system analysis method in the research of the active power distribution network and has become an important direction of the research of the current electric power system. As an effective means of analyzing and studying the characteristics of the network system, the complex network theory has been more and more concerned and applied in the fields of the Internet, Internet of Things, and the network of biological molecules in recent years, and it is in the power system network modeling, The application of stability analysis is a hot topic in the field of power system research. However, the application of its active power distribution network is still to be further developed. Based on the research of the theory of complex network, this paper fully analyzes the working characteristics and operating characteristics of the active power distribution network, and explores the common ground of the two networks and uses the complex network theory to study the dynamic modeling of the active power distribution network system based on the advantages of the network and the related basic. The characteristics of fault propagation, system stability analysis, synchronization and coordination and optimization of scheduling strategy are studied. In this paper, a new dynamic evolution model of active power distribution network is proposed based on the study of the topological characteristics of the growth, re-connection and disconnection of the active power distribution network. The statistical properties of the model show that the node degree distribution of the active power distribution network has the power-law characteristic, and the "node removal probability" of the model has a very important influence on the dynamic evolution characteristics and the robustness of the network. The discovery of these macro-topological features can provide important guidance and application value for active power distribution network in planning, vulnerability analysis, fault prediction and improvement of operating cost ratio of network. The concept of embedded network neighbor edge is introduced into the research of network sequential failure. In addition, by defining three types of failure modes of random attack, "minimum penetration" attack and "maximum dissolution" attack, the effects of different initial fault types on the non-scale network, the directional random network and the IEEE 118-bus system and its propagation characteristics are studied. It is proved that the propagation of the successive faults of the network is closely related to the directivity of the network flow and the initial fault type, and is more related to the size of the initial load and the rated capacity of the network line. These results are of great value to avoid the occurrence and propagation of successive failures of the network. Based on the theoretical study of the synchronization of complex network and the feasibility of its synchronization and coordination, a multi-autonomous micro-network power optimization and coordination scheduling strategy is proposed in this paper. The full utilization of the distributed electric energy and the maximum power supply of the important load of the system are realized by the action of the energy storage device. In this paper, an improved minimum spanning tree algorithm is used to determine the optimal power supply relationship through the reasonable construction of the micro-network topology relation matrix, and a new multi-autonomous micro-network structure is generated by using the linear matrix inequality algorithm to select the addition or deletion of the non-important load. Finally, through a series of experiments, it is proved that the proposed strategy is effective in improving the overall power utilization of the system and the continuous and safe power supply to the important loads. In the process of experiment and simulation, the IEEE standard test system is used as the research object, and the accuracy and the effectiveness of the experimental results are guaranteed, and the reliable basis for the relevant research results is provided. Based on the different characteristics and characteristics of the object, in the process of analyzing and studying the active power distribution network system using the complex network, this paper makes full use of the theory foundation, the research means and the thought method of the complex network. Thus laying an important foundation for the effective solution of the problem and the wide popularization and expansion of the method.
【學(xué)位授予單位】：浙江大學(xué)
【學(xué)位級(jí)別】：博士
【學(xué)位授予年份】：2015
【分類號(hào)】：TM732;O157.5

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