本文選題：微電網(wǎng)群　切入點(diǎn)：分布式優(yōu)化　出處：《華北電力大學(xué)(北京)》2017年碩士論文　論文類(lèi)型：學(xué)位論文

【摘要】：風(fēng)機(jī)(Wind Turbine,WT)和光伏(Photovoltaic,PV)等分布式電源的不斷發(fā)展,給電力系統(tǒng)的穩(wěn)定運(yùn)行帶來(lái)越來(lái)越大的威脅。由多個(gè)微電網(wǎng)(Microgrid,MG)組成的微電網(wǎng)群,為風(fēng)光等分布式能源的消納提供了有利的環(huán)境。因而需要對(duì)微電網(wǎng)群的運(yùn)行進(jìn)行優(yōu)化。根據(jù)微電網(wǎng)群是否聯(lián)網(wǎng),將微電網(wǎng)群分為并網(wǎng)型和離網(wǎng)型兩種分別進(jìn)行研究。對(duì)于并網(wǎng)型微電網(wǎng)群,在分布式電源上網(wǎng)電價(jià)低于市電電價(jià)的環(huán)境下,在微電網(wǎng)群實(shí)現(xiàn)電能共享,可以獲得比單獨(dú)運(yùn)行更好的效益。根據(jù)微電網(wǎng)群中運(yùn)營(yíng)商的不同作用,分為獨(dú)立系統(tǒng)運(yùn)營(yíng)商(Independent System Operator,ISO)以及屋頂租賃兩種運(yùn)營(yíng)模式。在ISO運(yùn)營(yíng)模式中,提出了一種基于分布式電能供需比(Supply and Demand Ratio,SDR)的內(nèi)部電價(jià)模型�；诮�(jīng)濟(jì)性和舒適度,提出了用戶(hù)的效用成本模型。分析用戶(hù)的需求響應(yīng)(Demand Response,DR)行為,提出了基于非合作博弈的DR模型,并提出了分布式優(yōu)化算法對(duì)該模型進(jìn)行求解;在屋頂租賃模式中,提出了一種基于分布式電能需供比(Demand and Supply Ratio,DSR)的內(nèi)部電價(jià)模型。分析了在該電價(jià)模型下用戶(hù)DR行為,提出了基于非合作博弈的DR模型。最后,利用分布式求解算法對(duì)模型進(jìn)行了求解。算例結(jié)果表明:并網(wǎng)型微電網(wǎng)群的分布式優(yōu)化運(yùn)行方法能有效提高微電網(wǎng)群各方收益,提升了電量共享水平,驗(yàn)證了方法的有效性。對(duì)于離網(wǎng)型微電網(wǎng)群,首先對(duì)MG優(yōu)化調(diào)度的基本模型進(jìn)行了說(shuō)明;其次,介紹了各分布式電源的基本模型,建立面向?qū)崟r(shí)優(yōu)化調(diào)度的儲(chǔ)能系統(tǒng)(Battery Energy Storage System,BESS)成本模型,然后,提出了一種基于交替方向乘子法(Alternating Direction Method of Multipliers,ADMM)的微電網(wǎng)群分布式優(yōu)化調(diào)度方法。最后,通過(guò)算例驗(yàn)證了算法的有效性。
[Abstract]:The continuous development of distributed generation, such as Wind Turbine (WT) and photovoltaic photovoltaic (PVV), has brought more and more threats to the stable operation of power system. Provides an enabling environment for the absorption of distributed energy sources, such as wind, and therefore requires optimization of the operation of the microgrid cluster, depending on whether the microgrid cluster is connected, The microgrid cluster is divided into grid-connected type and off-grid type. For grid-connected micro-grid cluster, the power sharing is realized in the micro-grid group under the condition that the electricity price of distributed generation is lower than that of electricity price. According to the different roles of operators in the microgrid cluster, they can be divided into two operating modes: independent System operator ISO and roof lease. In ISO operation mode, This paper presents an internal electricity price model based on distributed supply and Demand demand (SDR). Based on economy and comfort, the utility cost model of users is proposed, and the demand response behavior of users is analyzed. In this paper, a Dr model based on non-cooperative game is proposed, and a distributed optimization algorithm is proposed to solve the model. In this paper, an internal pricing model based on distributed demand and Supply Ratio DSRs is proposed. The user's Dr behavior under the model is analyzed, and a Dr model based on non-cooperative game is proposed. The distributed solution algorithm is used to solve the model. The results show that the distributed optimal operation method of grid-connected microgrid cluster can effectively improve the income of all parties and improve the level of electricity sharing. The effectiveness of the method is verified. For the off-grid microgrid cluster, the basic model of MG optimal dispatching is first explained, and the basic models of distributed power generation are introduced. The cost model of Battery Energy Storage system for real-time optimal dispatching is established. Then, a distributed optimal dispatching method for microgrid group based on alternating direction multiplier method is proposed. The effectiveness of the algorithm is verified by an example.
【學(xué)位授予單位】：華北電力大學(xué)(北京)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類(lèi)號(hào)】：TM727

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