本文選題：微網(wǎng)　切入點(diǎn)：虛擬儲(chǔ)能　出處：《東華大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

【摘要】：隨著新能源技術(shù)和互聯(lián)網(wǎng)技術(shù)為代表的第三次工業(yè)革命的興起,新能源的開發(fā)和利用成為了能源領(lǐng)域備受關(guān)注的話題。為了更大限度的接納分布式可再生能源,微電網(wǎng)的應(yīng)用范圍越來(lái)越廣泛,并且日益體現(xiàn)出其良好的綜合效益和市場(chǎng)前景。微電網(wǎng)能夠有效集成各類分布式清潔能源,實(shí)現(xiàn)可靠、靈活、經(jīng)濟(jì)供電。其能量管理是微網(wǎng)研究中的重要一環(huán),合理的能量管理與集成控制提高了整個(gè)微網(wǎng)系統(tǒng)的能源利用率、經(jīng)濟(jì)性和穩(wěn)定性,達(dá)到實(shí)現(xiàn)微網(wǎng)系統(tǒng)的自我保護(hù)和自我管理的目的。儲(chǔ)能系統(tǒng)對(duì)于微網(wǎng)的能量平衡起著至關(guān)重要的作用。本文將采用虛擬儲(chǔ)能的概念,將儲(chǔ)能系統(tǒng)的范圍擴(kuò)展至需求側(cè)的可控負(fù)荷范疇,進(jìn)一步對(duì)微網(wǎng)的能量管理與控制展開具體研究。主要內(nèi)容如下:1.介紹了微網(wǎng)的基本概念以及關(guān)鍵技術(shù),闡述了微網(wǎng)能量管理系統(tǒng)的基本功能及其重要的研究?jī)?nèi)容,針對(duì)風(fēng)光儲(chǔ)微網(wǎng)系統(tǒng)建立了穩(wěn)態(tài)仿真模型,包含了風(fēng)力發(fā)電機(jī)組、光伏陣列、蓄電池以及溫控負(fù)荷的數(shù)學(xué)模型,為后續(xù)制定能量管理策略的研究奠定了模型基礎(chǔ)。2.針對(duì)獨(dú)立運(yùn)行的風(fēng)光儲(chǔ)微網(wǎng)系統(tǒng)提出了基于虛擬儲(chǔ)能的能量管理策略。定義了系統(tǒng)中的虛擬儲(chǔ)能,通過需求側(cè)負(fù)荷管理,將溫控負(fù)荷的運(yùn)行時(shí)間和運(yùn)行時(shí)長(zhǎng)、可轉(zhuǎn)移負(fù)荷的運(yùn)行時(shí)間隨著風(fēng)電機(jī)組和光伏陣列的出力的變化而靈活地調(diào)節(jié),不僅能夠最大化利用風(fēng)光出力,而且利用溫控負(fù)荷的蓄冷蓄熱特性,能夠?qū)︼L(fēng)光發(fā)電的出力能量起到緩沖作用,降低微網(wǎng)系統(tǒng)對(duì)儲(chǔ)能容量的需求。3.針對(duì)并網(wǎng)運(yùn)行的微網(wǎng)系統(tǒng),在獨(dú)立風(fēng)光儲(chǔ)微網(wǎng)系統(tǒng)的研究基礎(chǔ)上,加入分時(shí)電價(jià)策略,配合大電網(wǎng)的電價(jià)信息,制定適合并網(wǎng)運(yùn)行的微網(wǎng)系統(tǒng)的能量管理策略,在滿足用戶舒適度的前提下,以從電網(wǎng)購(gòu)電費(fèi)用最低為目標(biāo)進(jìn)行了算例仿真。結(jié)果表明所提的策略經(jīng)濟(jì)性更優(yōu)且降低了對(duì)儲(chǔ)能系統(tǒng)的容量配置需求。4.最后,對(duì)所做的工作進(jìn)行了總結(jié),并提出了需進(jìn)一步研究的方向。
[Abstract]:With the rise of the third industrial revolution represented by new energy technology and Internet technology, the development and utilization of new energy has become a topic of great concern in the field of energy. The application scope of microgrid is more and more extensive, and more and more reflect its good comprehensive benefit and market prospect. Microgrid can effectively integrate all kinds of distributed clean energy, and realize reliable and flexible. Economic power supply. Its energy management is an important part of microgrid research. Reasonable energy management and integrated control improve the energy efficiency, economy and stability of the whole microgrid system. To achieve the goal of self-protection and self-management of microgrid system, energy storage system plays an important role in the energy balance of microgrid. In this paper, the concept of virtual energy storage is adopted. The scope of the energy storage system is extended to the scope of controllable load on the demand side, and the detailed research on the energy management and control of the microgrid is carried out. The main contents are as follows: 1. The basic concepts and key technologies of the microgrid are introduced. The basic functions and important research contents of the microgrid energy management system are described. A steady state simulation model is established for the wind energy storage system, which includes the mathematical models of wind turbine, photovoltaic array, storage battery and temperature control load. It lays a model foundation for the further study of energy management strategy. 2. A virtual energy management strategy based on virtual energy storage is proposed for the independently running solar microgrid system. The virtual energy storage strategy in the system is defined, and the demand side load management is adopted. The operating time and the running time of the temperature controlled load and the transferable load can be adjusted flexibly with the change of the wind turbine and the photovoltaic array, which can not only maximize the utilization of the wind power, but also the energy of the photovoltaic array. Moreover, by using the characteristic of temperature controlled load, it can buffer the output energy of wind power generation, and reduce the requirement of energy storage capacity of microgrid system. On the basis of the research of the independent solar microgrid system, the time-sharing pricing strategy is added, and the energy management strategy of the microgrid system suitable for grid-connected operation is formulated in accordance with the electricity price information of the large power grid. Under the premise of satisfying the comfort of the users, the energy management strategy of the micro-grid system is formulated. The simulation results show that the proposed strategy is more economical and reduces the capacity configuration requirement of energy storage system. Finally, the work done is summarized. The direction of further research is also put forward.
【學(xué)位授予單位】：東華大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TM73

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