發(fā)布時間：2018-12-17 12:00

【摘要】：隨著社會的迅速發(fā)展,能源和環(huán)境的危機越來越嚴重,這種現(xiàn)象使得人們對新能源的研究和利用迫在眉睫。近些年,太陽能的應用比較廣泛,但是光伏發(fā)電有一定的缺點,當光照強度不足或者陰雨天時,就會嚴重影響到光伏電池發(fā)電,這會對它的應用帶來相當大的阻礙。合理地將燃料電池和光伏電池組合使用,可以在光照強度連續(xù)低于平均值的時候,使光伏電池的輸出曲線不會出現(xiàn)較大的波動。因此,使光伏燃料電池系統(tǒng)高效工作將作為這一項研究的重中之重。當前,我國在光伏發(fā)電方面的應用已經(jīng)非常成熟,關(guān)于燃料電池的科學研究也日益完善,而對光伏燃料電池系統(tǒng)的研究還處于仿真模擬階段。本文主要對光伏燃料電池系統(tǒng)及其子系統(tǒng)進行特性分析及研究,為利用光伏燃料電池提供了一定的理論基礎(chǔ)。本文開篇闡述了光伏電池的基本理論,比較了制取氫氣的幾種常用方法的優(yōu)缺點,從中選擇電解水制氫氣的方法,同時介紹了其反應原理及過程。列出幾種H2存儲途徑,以及燃料電池的基本原理和反應過程,然后介紹了光伏電池等效電路模型以及帶有最大功率跟蹤(MPPT)的光伏電池發(fā)電系統(tǒng)、水電解槽的數(shù)學模型和燃料電池的電化學模型。根據(jù)各模塊的等效關(guān)系和數(shù)學模型,在Matlab軟件中搭建穩(wěn)態(tài)和動態(tài)仿真模型,得出各子系統(tǒng)輸出特性的影響因素,并進行性能分析和研究。根據(jù)燃料電池容量需求設(shè)置具體參數(shù),分析整個模型的仿真結(jié)果并得出使系統(tǒng)高效工作的氫氣流量值,完成對光伏燃料電池系統(tǒng)的理論研究與實現(xiàn)。
[Abstract]:With the rapid development of society, the crisis of energy and environment is becoming more and more serious. In recent years, solar energy is widely used, but photovoltaic power generation has some shortcomings, when the light intensity is insufficient or rainy, it will seriously affect the photovoltaic cell power generation, which will bring considerable obstacles to its application. The reasonable combination of fuel cell and photovoltaic cell can keep the output curve of photovoltaic cell from fluctuating when the light intensity is continuously lower than the average value. Therefore, making photovoltaic fuel cell system efficient will be the top priority of this research. At present, the application of photovoltaic power generation in China has been very mature, the scientific research on fuel cells is increasingly perfect, and the research on photovoltaic fuel cell system is still in the simulation stage. In this paper, the characteristics of photovoltaic fuel cell system and its sub-system are analyzed and studied, which provides a theoretical basis for the use of photovoltaic fuel cell. At the beginning of this paper, the basic theory of photovoltaic cell is described, the advantages and disadvantages of several common methods for hydrogen production are compared, the method of electrolyzing water to produce hydrogen is selected, and the reaction principle and process are introduced. This paper lists several ways of H _ 2 storage, as well as the basic principle and reaction process of fuel cell, then introduces the equivalent circuit model of photovoltaic cell and the photovoltaic power generation system with maximum power tracking (MPPT). Mathematical model of water electrolysis cell and electrochemical model of fuel cell. According to the equivalent relation and mathematical model of each module, the steady and dynamic simulation models are built in Matlab software, and the factors influencing the output characteristics of each subsystem are obtained, and the performance analysis and research are carried out. According to the capacity requirements of the fuel cell, the specific parameters are set up, the simulation results of the whole model are analyzed, and the hydrogen flow rate of the system is obtained. The theoretical research and implementation of the photovoltaic fuel cell system are completed.
【學位授予單位】：太原科技大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TM911.4

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