【摘要】：隨著大氣質(zhì)量的不斷下滑,礦產(chǎn)資源的日漸枯竭,“節(jié)能”與“環(huán)�！币呀�(jīng)成為全球關(guān)注的熱點(diǎn)話題。摩托車作為人們常用的小型代步工具,也應(yīng)該做出順應(yīng)時代潮流的改變,電動摩托車逐漸代替內(nèi)燃機(jī)摩托車已經(jīng)成為該行業(yè)發(fā)展的必然趨勢。但是,與內(nèi)燃機(jī)摩托車相比,當(dāng)前的單能量源摩托車存在續(xù)航能力弱,電池循環(huán)壽命短等缺陷。為了解決這些問題,本論文研究了一種新型混合動力摩托車動力系統(tǒng)結(jié)構(gòu)。該系統(tǒng)具有增加摩托車?yán)m(xù)航里程,保證摩托車在啟動、爬坡時的加速度,以及延長電池實(shí)際使用壽命的優(yōu)點(diǎn)。本文首先調(diào)研和分析了國內(nèi)外電動摩托車及其電氣架構(gòu),以及雙向DC-DC變換器的研究現(xiàn)狀。針對當(dāng)前單能量源摩托車存在的問題,研究和選用具有能量互補(bǔ)特性的高能電池和高功率電池組成摩托車的混合動力系統(tǒng)。同時重點(diǎn)研究和設(shè)計(jì)了該系統(tǒng)中的關(guān)鍵部件——雙向DC-DC變換器和能量管理策略。雙向DC-DC變換器的主要功能是根據(jù)系統(tǒng)的不同工況來控制能量的傳遞方向。為了實(shí)現(xiàn)高效率的能量傳遞,論文中針對雙向DC-DC變換器低壓大電流的特點(diǎn),引入了同步整流技術(shù)。論文基于摩托車不同的運(yùn)行工況,分析了變換器相應(yīng)的工作模式,并對其在不同模式下的工作原理進(jìn)行了詳細(xì)分析；建立了變換器在Boost/Buck模式下的小信號模型,并對兩種模式下的控制器參數(shù)進(jìn)行了設(shè)計(jì)；同時為了驗(yàn)證變換器設(shè)計(jì)的正確性,對變換器進(jìn)行了Matlab/Simulink仿真。實(shí)驗(yàn)室開發(fā)了一臺基于混合動力摩托車的1.5kW雙向DC-DC變換器實(shí)驗(yàn)平臺。針對變換器的不同工作模式,在實(shí)驗(yàn)室完成Boost/Buck穩(wěn)態(tài)實(shí)驗(yàn)及動態(tài)變載實(shí)驗(yàn)的基礎(chǔ)上,進(jìn)行了實(shí)際車載實(shí)驗(yàn)。實(shí)驗(yàn)結(jié)果驗(yàn)證了混合動力系統(tǒng)設(shè)計(jì)的正確性及合理性。
[Abstract]:With the decline of atmospheric quality and the depletion of mineral resources, "energy saving" and "environmental protection" have become a hot topic of global concern. Motorcycles, as a commonly used small means of walking, should also make changes in line with the trend of the times, electric motorcycles have gradually replaced the internal combustion engine motorcycle has become the inevitable trend of the development of the industry. However, compared with internal combustion engine motorcycles, the current single energy source motorcycles have some shortcomings such as weak endurance and short battery cycle life. In order to solve these problems, a new hybrid motorcycle power system structure is studied in this paper. The system has the advantages of increasing the mileage of the motorcycle, ensuring the acceleration of the motorcycle during starting and climbing, and prolonging the actual service life of the battery. Firstly, this paper investigates and analyzes the research status of electric motorcycles and their electrical structures, as well as the bidirectional DC-DC converters at home and abroad. Aiming at the existing problems of single energy source motorcycle, the hybrid power system composed of high energy battery and high power battery with complementary energy characteristics is studied and selected. At the same time, the key components of the system, bidirectional DC-DC converter and energy management strategy, are studied and designed. The main function of the bidirectional DC-DC converter is to control the energy transfer direction according to the different working conditions of the system. In order to achieve high efficiency energy transfer, the synchronous rectifier technology is introduced in this paper according to the characteristics of low voltage and high current of bidirectional DC-DC converter. Based on the different operating conditions of motorcycle, this paper analyzes the corresponding working modes of the converter, and analyzes the working principle of the converter in different modes in detail, and establishes the small signal model of the converter in Boost/Buck mode. The controller parameters in two modes are designed, and the converter is simulated by Matlab/Simulink in order to verify the correctness of the converter design. An experimental platform of 1.5kW bidirectional DC-DC converter based on hybrid motorcycle is developed. According to the different working modes of the converter, the Boost/Buck steady state experiment and the dynamic load changing experiment are completed in the laboratory, and the actual vehicle experiment is carried out. The experimental results verify the correctness and rationality of the hybrid power system design.
【學(xué)位授予單位】：西南交通大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：U483;TM46

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本文編號：2271962