本文選題：電動(dòng)汽車(chē)退役電池 + 儲(chǔ)能��； 參考：《山東大學(xué)》2017年碩士論文

【摘要】：為應(yīng)對(duì)能源和環(huán)境危機(jī)、推進(jìn)清潔替代和電能替代,電動(dòng)汽車(chē)作為新型電能利用技術(shù)的代表正快速發(fā)展。在可再生能源大規(guī)模接入背景下,具有隨機(jī)性和沖擊性的電動(dòng)汽車(chē)負(fù)荷給電網(wǎng)的運(yùn)行和控制帶來(lái)巨大壓力,電網(wǎng)對(duì)于儲(chǔ)能的需求將越來(lái)越大。同時(shí)大量動(dòng)力電池的退役處理也是亟需解決的問(wèn)題。在上述背景下,本文以構(gòu)建基于退役動(dòng)力電池的儲(chǔ)能系統(tǒng)并利用其支撐電網(wǎng)對(duì)電動(dòng)汽車(chē)負(fù)荷的接納為思路,進(jìn)行了相關(guān)課題的研究,以期在有效利用退役電池的同時(shí)高效接納電動(dòng)汽車(chē)負(fù)荷,實(shí)現(xiàn)二者以友好的方式接入電網(wǎng)。首先進(jìn)行了電動(dòng)汽車(chē)負(fù)荷的建模和特性分析。提出了考慮電池特性、充電裝置特性、用戶行為特性和電價(jià)影響的電動(dòng)汽車(chē)負(fù)荷建模方法,并參考實(shí)際車(chē)型數(shù)據(jù)分析了電動(dòng)汽車(chē)負(fù)荷特性。所提負(fù)荷建模方法,包括考慮負(fù)荷時(shí)變和電壓靜特性的單體負(fù)荷數(shù)值建模方法和考慮隨機(jī)性的群體負(fù)荷建模方法。其次研究了可重構(gòu)的退役電池儲(chǔ)能系統(tǒng)構(gòu)建過(guò)程中的相關(guān)問(wèn)題。為掌握退役電池儲(chǔ)能系統(tǒng)的老化過(guò)程特性,提出了成組電池老化和不一致性聯(lián)合演化仿真模型,并給出了基于該模型指導(dǎo)退役電池分類(lèi)篩選的方法。針對(duì)退役電池一致性、可靠性較差的特點(diǎn),基于動(dòng)態(tài)可重構(gòu)理論和拓?fù)?設(shè)計(jì)了考慮老化均衡的電池動(dòng)態(tài)成組和充放電控制方法,仿真表明所提方法可有效降低老化過(guò)程中電池單體間的不一致性,并顯著提高電池組可用容量。最后研究了退役電池儲(chǔ)能在電動(dòng)汽車(chē)負(fù)荷和可再生能源接納中的應(yīng)用。通過(guò)分析退役電池儲(chǔ)能系統(tǒng)在老化過(guò)程中可用功率和能量的變化機(jī)理,提出了不同老化狀態(tài)和儲(chǔ)能需求條件下,儲(chǔ)能系統(tǒng)參與電動(dòng)汽車(chē)負(fù)荷或可再生能源出力管控的運(yùn)行控制機(jī)制�；谒徇\(yùn)行控制機(jī)制和管控性能指標(biāo),分析了退役電池儲(chǔ)能系統(tǒng)在老化過(guò)程中管控性能的變化,本文仿真情境中其可在實(shí)現(xiàn)既定功能條件下運(yùn)行5年以上�；趯�(shí)際案例分析了退役電池儲(chǔ)能在緩解分布式光伏和電動(dòng)汽車(chē)接入受限問(wèn)題上的應(yīng)用,結(jié)果表明其有利于二者的就地消納且可提高配變負(fù)載率。
[Abstract]:In order to deal with the crisis of energy and environment and to promote clean substitution and electric substitution, electric vehicles (EV) are developing rapidly as the representatives of new power utilization technology. In the context of large-scale access to renewable energy, the load of electric vehicles with randomness and impact will bring great pressure to the operation and control of the power grid, and the demand for energy storage will be increasing. At the same time, the decommissioning of a large number of power batteries is also an urgent problem. Based on the above background, this paper takes the idea of constructing the energy storage system based on decommissioned power battery and using it to support the electric vehicle load acceptance as the train of thought, carries on the related research. The purpose of this paper is to use decommissioned batteries effectively and to accept the load of electric vehicles efficiently, and to connect them to the power grid in a friendly way. Firstly, the load modeling and characteristic analysis of electric vehicle are carried out. This paper presents a load modeling method for electric vehicles considering the effects of battery characteristics, charging device characteristics, user behavior characteristics and electricity price, and analyzes the load characteristics of electric vehicles with reference to the actual vehicle model data. The proposed load modeling method includes single load numerical modeling method considering load time-varying and voltage static characteristics and group load modeling method considering randomness. Secondly, the related problems in the construction of reconfigurable decommissioned battery energy storage system are studied. In order to understand the characteristics of aging process of decommissioned battery energy storage system, a combined evolution simulation model of group battery aging and inconsistency was proposed, and the method of classifying and screening decommissioned battery based on the model was given. Based on dynamic reconfigurable theory and topology, a battery dynamic grouping and charge / discharge control method considering aging equalization is designed in view of the characteristics of uniform and poor reliability of decommissioned batteries. The simulation results show that the proposed method can effectively reduce the inconsistency between the cells during aging and increase the available capacity of the battery significantly. Finally, the application of decommissioned battery energy storage in electric vehicle load and renewable energy acceptance is studied. By analyzing the change mechanism of available power and energy in decommissioned battery energy storage system during aging, the paper puts forward the conditions of different aging states and energy storage requirements. Energy storage system is involved in the operation control mechanism of electric vehicle load or renewable energy output control. Based on the proposed operation control mechanism and control performance index, this paper analyzes the change of control performance of decommissioned battery energy storage system during the aging process. In this simulation situation, it can run for more than 5 years under the condition of realizing the given function. The application of decommissioned battery energy storage in solving the problem of limited access to distributed photovoltaic and electric vehicles is analyzed based on a practical case. The results show that it is beneficial to the in-situ absorption of both and can improve the load distribution rate.
【學(xué)位授予單位】：山東大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類(lèi)號(hào)】：TM714;TM912;TM73

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