【摘要】：在我國(guó)的采礦業(yè)中,礦用蓄電池電機(jī)車被廣泛使用。但因傳統(tǒng)蓄電池式供電系統(tǒng)存在電池組體積重量大、續(xù)航能力弱,使用壽命短等等問(wèn)題,阻礙了礦用電機(jī)車充分發(fā)揮其應(yīng)用價(jià)值,并且使用產(chǎn)生的廢舊電池又會(huì)對(duì)環(huán)境造成嚴(yán)重的污染。而無(wú)線供電技術(shù)因其特有的非接觸式電能傳輸?shù)奶攸c(diǎn),可以實(shí)現(xiàn)對(duì)電機(jī)車的實(shí)時(shí)供電,可令電機(jī)車在運(yùn)輸時(shí)少帶甚至不帶電池,促使電機(jī)車驅(qū)動(dòng)系統(tǒng)和供電系統(tǒng)的一體化設(shè)計(jì)。該技術(shù)的應(yīng)用將可以打破礦用電機(jī)車的應(yīng)用瓶頸,促進(jìn)我國(guó)采礦業(yè)的再次進(jìn)步。無(wú)線供電技術(shù)因其巨大的應(yīng)用潛力,吸引了越來(lái)越多的研究機(jī)構(gòu)投入其中。如今,該技術(shù)正逐步實(shí)現(xiàn)大功率和高效率化。本文嘗試將無(wú)線供電技術(shù)應(yīng)用到礦用電機(jī)車上,通過(guò)搭建礦用電機(jī)車無(wú)線供電系統(tǒng)的模型,使用仿真軟件來(lái)驗(yàn)證無(wú)線供電技術(shù)在礦用電機(jī)車上應(yīng)用的可行性。通過(guò)對(duì)比主要的三類無(wú)線電能傳輸方式,本文依據(jù)礦用電機(jī)車的特點(diǎn),選擇電磁耦合諧振式無(wú)線供電技術(shù),并應(yīng)用耦合模理論和電路理論對(duì)該技術(shù)加以分析。依據(jù)電路理論得出的輸出功率和傳輸效率表達(dá)式,在MATLAB和OrCAD仿真軟件下分析頻率、負(fù)載和互感對(duì)無(wú)線供電系統(tǒng)傳輸特性的影響。在此基礎(chǔ)上,本文研究了礦用電機(jī)車無(wú)線供電系統(tǒng)各電路模塊的選型:濾波電路選擇了 EMI電路,以減小系統(tǒng)的電磁輻射和對(duì)電網(wǎng)的影響;整流電路選擇全橋不可控的整流方式;高頻逆變電路選擇全橋IGBT電路,并采用軟開關(guān)技術(shù)來(lái)減少開關(guān)損耗;功率變換電路采用Buck-Boost電路,利用Simulink搭建次級(jí)線圈側(cè)電路仿真模型,在仿真模型下驗(yàn)證了電機(jī)車運(yùn)行的穩(wěn)定性。對(duì)于無(wú)線供電系統(tǒng)的耦合機(jī)構(gòu),通過(guò)計(jì)算和MAXWELL電磁仿真軟件確定了耦合線圈和磁芯的結(jié)構(gòu)設(shè)計(jì)。電機(jī)車無(wú)線供電系統(tǒng)需沿軌道鋪設(shè)供電導(dǎo)軌,因此本文還分析了供電導(dǎo)軌的模型及其配電方式,以確保系統(tǒng)運(yùn)行的穩(wěn)定性和高效性。由于礦用電機(jī)車應(yīng)用在工礦業(yè)領(lǐng)域,論文最后研究了無(wú)線供電系統(tǒng)在易燃易爆環(huán)境下的安全功率容量。
[Abstract]:In China's mining industry, mining battery electric locomotive is widely used. However, the traditional battery supply system has many problems, such as large volume weight of battery pack, weak endurance, short service life and so on, which hinders the mine electric locomotive to give full play to its application value. And the use of waste batteries will cause serious pollution to the environment. Because of its unique characteristics of non-contact electric power transmission, wireless power supply technology can realize real-time power supply to electric locomotives, and can make electric locomotives with little or no batteries in transportation, and promote the integrated design of electric locomotive driving system and power supply system. The application of this technology will break the bottleneck of mine electric locomotive application and promote the progress of mining industry in China. Wireless power supply technology attracts more and more research institutions because of its huge application potential. Now, the technology is gradually realizing high power and high efficiency. This paper attempts to apply wireless power supply technology to mine electric locomotive. By building the model of wireless power supply system of mine electric locomotive and using simulation software, the feasibility of applying wireless power supply technology to mine electric locomotive is verified. According to the characteristics of mine electric locomotives, the electromagnetic coupling resonant wireless power supply technology is selected by comparing the three main radio energy transmission modes, and the coupling mode theory and circuit theory are applied to analyze the technology. Based on the expressions of output power and transmission efficiency obtained from circuit theory, the effects of frequency, load and mutual inductance on transmission characteristics of wireless power supply system are analyzed under MATLAB and OrCAD simulation software. On this basis, this paper studies the selection of various circuit modules of wireless power supply system of mine electric locomotive: the filter circuit selects EMI circuit to reduce the electromagnetic radiation of the system and the influence on the power grid; The rectifier circuit chooses the full bridge uncontrollable rectifier mode; the high frequency inverter circuit selects the full bridge IGBT circuit and adopts soft switch technology to reduce the switching loss; the power conversion circuit adopts Buck-Boost circuit and uses Simulink to build the simulation model of the secondary coil side circuit. The stability of electric locomotive is verified by simulation model. For the coupling mechanism of wireless power supply system, the structure design of coupling coil and magnetic core is determined by calculation and MAXWELL electromagnetic simulation software. The wireless power supply system of electric locomotive needs to lay the power supply guide along the track, so the model of the power supply guide and its distribution mode are analyzed in order to ensure the stability and high efficiency of the system. Due to the application of mine electric locomotives in industrial and mining fields, the safe power capacity of wireless power supply system in flammable and explosive environment is studied in the last part of the paper.
【學(xué)位授予單位】：安徽理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TD64;TM724

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本文編號(hào)：2176904