本文選題：多微網(wǎng)系統(tǒng) + 協(xié)調調度架構��； 參考：《湖南大學》2014年碩士論文

【摘要】：隨著大量且種類多樣的分布式電源或微網(wǎng)群體并入電網(wǎng)，技術、經(jīng)濟等多方面的原因導致電網(wǎng)的調度指令難以快速有效執(zhí)行，集中單一的調度方式難以適應這一變化。因此，本文從更大范圍的互補性出發(fā)考慮多微網(wǎng)的協(xié)調運行，提出了多微網(wǎng)系統(tǒng)的協(xié)調調度架構及策略，并在此基礎上建立多微網(wǎng)系統(tǒng)的經(jīng)濟調度模型，協(xié)調了微網(wǎng)與微網(wǎng)、電網(wǎng)之間的出力，提高了多微網(wǎng)系統(tǒng)運行的經(jīng)濟性，降低了微網(wǎng)系統(tǒng)內部對儲能單元的依賴程度。 本文開展的具體研究工作如下： 首先，提出了基于智能互動技術的多微網(wǎng)系統(tǒng)的優(yōu)化調度新思路。根據(jù)電網(wǎng)及各微網(wǎng)的運行特性，采用人工智能技術實現(xiàn)電網(wǎng)與各微網(wǎng)的信息交流與能量交互，從而利用更大范圍的互補性以減少多個微網(wǎng)出力的不確定性。 其次，考慮到多微網(wǎng)中的各個微網(wǎng)既是相互獨立又是相互聯(lián)系，提出了多微網(wǎng)系統(tǒng)的協(xié)調調度架構，該架構由微網(wǎng)內部微源協(xié)調、微網(wǎng)間協(xié)調、多微網(wǎng)與配電網(wǎng)交互三部分組成。其中，，微網(wǎng)間協(xié)調是該架構的重要部分，即根據(jù)各微網(wǎng)內部電量供需狀況以協(xié)調各微網(wǎng)間的出力。基于系統(tǒng)協(xié)調調度架構，提出針對電網(wǎng)峰平谷時段的多微網(wǎng)系統(tǒng)協(xié)調調度策略。 然后，根據(jù)不同微電源的數(shù)學模型，建立以多微網(wǎng)系統(tǒng)運行成本最小為目標的經(jīng)濟調度模型，并結合前述的多微網(wǎng)系統(tǒng)協(xié)調調度策略，提出基于粒子群算法的求解方法。 最后，對微網(wǎng)系統(tǒng)中可再生能源發(fā)電出力和日負荷需求進行模擬，并分別計算比較不考慮含儲能單元的單微網(wǎng)單獨并網(wǎng)與多微網(wǎng)協(xié)調并網(wǎng)、考慮含儲能單元的單微網(wǎng)單獨并網(wǎng)與多微網(wǎng)協(xié)調并網(wǎng)的優(yōu)化出力結果。仿真結果表明多微網(wǎng)系統(tǒng)協(xié)調并網(wǎng)的優(yōu)化出力比單獨并網(wǎng)的更具有經(jīng)濟性。 本文通過研究多微網(wǎng)系統(tǒng)的協(xié)調調度架構及策略，并應用到多微網(wǎng)系統(tǒng)的優(yōu)化運行，有利于提高微網(wǎng)系統(tǒng)運行的經(jīng)濟性，并在一定程度上可引導微網(wǎng)系統(tǒng)有序地接入配電網(wǎng)。
[Abstract]:With a large number and variety of distributed generation or microgrid groups incorporated into the power grid, technical, economic and other reasons lead to the grid dispatch instructions are difficult to implement quickly and effectively, centralized single dispatching mode is difficult to adapt to this change. Therefore, in this paper, the coordinated operation of multi-microgrid system is considered from the point of view of wider complementarity, and the coordinated scheduling architecture and strategy of multi-microgrid system are proposed. On this basis, the economic scheduling model of multi-microgrid system is established, and the microgrid and micro-grid are coordinated. The power generation between the power grids improves the economy of the operation of the multi-microgrid system and reduces the dependence of the micro-grid system on the energy storage unit. The research work in this paper is as follows: firstly, a new idea of optimal scheduling for multi-microgrid systems based on intelligent interactive technology is proposed. According to the operation characteristics of power grid and microgrid, the artificial intelligence technology is used to realize the information exchange and energy interaction between power grid and microgrid, so as to reduce the uncertainty of power generation of multiple microgrids by taking advantage of the complementarity in a larger range. Secondly, considering that each microgrid in the multi-microgrid is not only independent but also interrelated, the coordination and scheduling architecture of the multi-microgrid system is proposed, which is coordinated by the microsource within the microgrid and the coordination between the microgrids. The interaction between multi-microgrid and distribution network is composed of three parts. The coordination between microgrids is an important part of the architecture, that is, according to the supply and demand of electricity in each microgrid to coordinate the output of each microgrid. Based on the system coordination scheduling architecture, a coordinated scheduling strategy for multi-microgrid systems during peak and valley periods is proposed. Then, according to the mathematical models of different micro-power sources, the economic scheduling model with the minimum operating cost of the multi-microgrid system is established, and the Particle Swarm Optimization (PSO) algorithm is proposed to solve the problem in combination with the above-mentioned coordinated scheduling strategy for the multi-microgrid system. Finally, the generation capacity and daily load demand of renewable energy in microgrid system are simulated, and the single microgrid and multi-microgrid coordinated grid-connected without energy storage unit are calculated and compared respectively. In this paper, the optimization results of single microgrid and multi-microgrid coordinated grid-connected with energy storage unit are considered. The simulation results show that the optimal output force of multi-microgrid system is more economical than that of single grid-connected system. In this paper, the coordinated scheduling architecture and strategy of multi-microgrid system are studied and applied to the optimal operation of multi-microgrid system, which is helpful to improve the economy of microgrid system operation, and to a certain extent can guide the micro-grid system to connect to the distribution network in an orderly manner.
【學位授予單位】：湖南大學
【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：2078956