本文選題：電動(dòng)叉車　切入點(diǎn)：鋅聚苯胺電池　出處：《哈爾濱工業(yè)大學(xué)》2013年碩士論文

【摘要】：電動(dòng)叉車與傳統(tǒng)內(nèi)燃機(jī)相比，具有靈活性更好、可操作性更強(qiáng)、操作強(qiáng)度更輕的優(yōu)點(diǎn)，并且污染更小，，更符合中國的新能源策略，近年來發(fā)展非常迅速。制約電動(dòng)叉車發(fā)展的技術(shù)瓶頸是電動(dòng)叉車的蓄電池，電池管理系統(tǒng)是解決蓄電池問題的關(guān)鍵技術(shù)難點(diǎn)之一，備受關(guān)注。 以鋅聚苯胺電池管理系統(tǒng)為研究對象，目的是對電池的工作狀態(tài)信息實(shí)時(shí)監(jiān)測、提高電池的能量效率和延長電池的使用壽命。 對鋅聚苯胺電池的充放電特性進(jìn)行了分析，確定了電池充放電截止判據(jù)。對影響鋅聚苯胺電池剩余電量的因素進(jìn)行了分析，對幾種常用的SOC估算方法進(jìn)行了研究，并分析了各種方法的優(yōu)缺點(diǎn)。設(shè)計(jì)了結(jié)合安時(shí)法與開路電壓法優(yōu)點(diǎn)的SOC估算方法。通過實(shí)驗(yàn)確定了安時(shí)-開路電壓法的補(bǔ)償方法，并對其進(jìn)行了仿真，通過仿真結(jié)果與實(shí)驗(yàn)結(jié)果的對比證明了安時(shí)-開路電壓法的準(zhǔn)確性。 設(shè)計(jì)基于微控制器的電池管理系統(tǒng)硬件電路。硬件部分設(shè)計(jì)了單片機(jī)最小系統(tǒng)模塊、電源轉(zhuǎn)換模塊、電池狀態(tài)信息采集模塊、電池組均衡模塊、故障報(bào)警模塊、液晶顯示模塊以及CAN通訊模塊，可對電池的實(shí)時(shí)狀態(tài)信息進(jìn)行檢測，防止電池出現(xiàn)過充、過放、溫度過高等導(dǎo)致電池使用壽命縮短的現(xiàn)象；可在液晶顯示器上顯示出實(shí)時(shí)SOC，方便駕駛員對電池狀態(tài)進(jìn)行判斷；可與整車控制器進(jìn)行通訊，使整車控制器可以對電池異常狀態(tài)做出相應(yīng)處理措施。 根據(jù)設(shè)計(jì)的電池管理系統(tǒng)所需實(shí)現(xiàn)的功能與設(shè)計(jì)的SOC估算方法，繪制了相應(yīng)的程序流程圖，并使用C語言進(jìn)行了程序編寫。
[Abstract]:Compared with traditional internal combustion engines, electric forklifts have the advantages of better flexibility, stronger maneuverability, lighter operating intensity, less pollution and more in line with China's new energy strategy. In recent years, the technology bottleneck of electric forklift truck is the battery of electric forklift truck. Battery management system is one of the key technical difficulties to solve the problem of battery, and has attracted much attention. Taking the Zn-Polyaniline battery management system as the research object, the aim is to monitor the working state information of the battery in real time, improve the energy efficiency of the battery and prolong the battery service life. The charge-discharge characteristic of Zn-Polyaniline battery is analyzed, and the cutoff criterion of battery charge and discharge is determined. The factors influencing the residual charge of Zn-Polyaniline battery are analyzed, and several common SOC estimation methods are studied. The advantages and disadvantages of various methods are analyzed, and the SOC estimation method combining the advantages of the ampere-voltage method and the open-circuit voltage method is designed. The compensation method of the ampere-open-circuit voltage method is determined by experiments, and the simulation is carried out. The accuracy of the method is proved by comparing the simulation results with the experimental results. Design the hardware circuit of battery management system based on microcontroller. The hardware part designs the minimum system module, power conversion module, battery status information collection module, battery equalization module, fault alarm module. Liquid crystal display module and CAN communication module can detect the real-time state information of the battery to prevent the battery from overcharging, overdischarge and excessive temperature which lead to the shortening of battery service life. The real time SOC can be displayed on the LCD, which is convenient for the driver to judge the battery state, and can communicate with the vehicle controller so that the vehicle controller can deal with the abnormal state of the battery. According to the function of the designed battery management system and the SOC estimation method of the design, the corresponding program flow chart is drawn, and the program is programmed with C language.
【學(xué)位授予單位】：哈爾濱工業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2013
【分類號】：TH242

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