本文選題：燃料電池　切入點：能量存儲器　出處：《中北大學》2016年碩士論文　論文類型：學位論文

【摘要】：傳統(tǒng)汽車尾氣排放及能源消耗造成了嚴重的環(huán)境和能源危機,而燃料電池汽車因其零污染和原料來源廣泛的優(yōu)點成為當前汽車領域的研究重點。本文以某國產(chǎn)經(jīng)濟型轎車為原型,在不改變基本參數(shù)和性能目標的基礎上,將其設計為燃料電池汽車,并對其動力系統(tǒng)和控制策略進行了數(shù)值研究,為后續(xù)的探究提供了參考與借鑒。本文首先確定了燃料電池+能量存儲器的雙動力源結構,并計算分析了不同結構的驅動效率,確定了最優(yōu)結構形式。其次,剖析了燃料電池系統(tǒng)的結構,闡述了其基本工作原理,選取了燃料電池汽車的主要動力元部件。然后,通過原車仿真與試驗結果對比,驗證了本文采用的數(shù)值計算方法的可靠性,并在MATLAB/Simulink平臺上搭建燃料電池整車仿真模型及各動力元件模型。通過計算獲得了驅動電機的主要參數(shù),利用ADVISOR對整車進行仿真分析,解決了燃料電池汽車動力源功率分配與能量存儲器的選配的問題。最后,對比分析了功率跟隨式與開關控制式兩種控制策略,闡述了功率跟隨式在ADVISOR的實現(xiàn)過程,并對兩種控制策略進行了仿真研究。研究結果表明,①動力源的功率分配不同得出的性能指標也不同,通過對比分析確定了一組最優(yōu)的分配方案;②在電量保持的燃料電池系統(tǒng)中,蓄電池較高的比能量并不具有優(yōu)勢,因為汽車的續(xù)航里程主要取決于氫氣罐的容量,而超級電容器具有較高的比功率,能夠同時提高經(jīng)濟性和加速性能,因此燃料電池+超級電容器更具有優(yōu)勢。③采用功率跟隨式控制策略在整車動力性和經(jīng)濟性方面優(yōu)于開關控制式,解決了蓄能器過充過放問題,降低了燃料電池頻繁開啟,保證動力輸出要求。
[Abstract]:Traditional automobile exhaust emissions and energy consumption have caused a serious environmental and energy crisis. Fuel cell vehicle has become the focus of research in automobile field because of its advantages of zero pollution and wide source of raw materials. In this paper, a domestic economy car is used as prototype, without changing the basic parameters and performance objectives. It is designed as a fuel cell vehicle, and its power system and control strategy are numerically studied, which provides a reference for further research. Firstly, the dual power source structure of fuel cell energy storage is determined in this paper. The driving efficiency of different structures is calculated and analyzed, and the optimal structure is determined. Secondly, the structure of fuel cell system is analyzed, its basic working principle is expounded, and the main power components of fuel cell vehicle are selected. The reliability of the numerical calculation method used in this paper is verified by comparing the results of the original vehicle simulation with the test results, and the fuel cell vehicle simulation model and various power element models are built on the MATLAB/Simulink platform. The main parameters of the driving motor are obtained by calculation. The problem of power distribution and energy storage allocation of fuel cell vehicle is solved by using ADVISOR simulation analysis. Finally, two control strategies, power following and switching control, are compared and analyzed. The realization process of power follower in ADVISOR is described, and two control strategies are simulated. The results show that the performance index of power distribution of power source is different. Through comparison and analysis, it is determined that a group of optimal distribution schemes can be used in fuel cell systems where the electric quantity is maintained. The higher specific energy of the battery does not have an advantage, because the vehicle's range of life depends mainly on the capacity of the hydrogen tank. Supercapacitors have high specific power and can improve both economy and acceleration performance. Therefore, the fuel cell supercapacitor has the advantage that the power following control strategy is superior to the switching control strategy in power performance and economy of the whole vehicle, which solves the problem of the accumulator overcharge and overdischarge and reduces the frequent opening of the fuel cell. Ensure power output requirements.
【學位授予單位】：中北大學
【學位級別】：碩士
【學位授予年份】：2016
【分類號】：U469.72

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