【摘要】：目前,蓄電池是作為人們使用清潔能源的重要工具,已經(jīng)得到了廣泛應(yīng)用,隨之蓄電池的種類也越來(lái)越復(fù)雜,作為蓄電池重要充電工具的傳統(tǒng)充電機(jī)也面臨著很大挑戰(zhàn),而擁有適應(yīng)不同蓄電池組、完善的故障保護(hù)功能、無(wú)人值守充電、遠(yuǎn)程修改充電參數(shù)等功能的智能充電機(jī)需求迫切。本文旨在設(shè)計(jì)實(shí)現(xiàn)一種結(jié)合數(shù)字控制技術(shù)與高頻開(kāi)關(guān)技術(shù)的智能充電機(jī)電路系統(tǒng),克服傳統(tǒng)充電機(jī)故障保護(hù)功能不完善、能效比低、人工值守充電等弱點(diǎn)。首先,根據(jù)論文研究背景提出智能充電機(jī)的設(shè)計(jì)參數(shù)和功能指標(biāo);其次,確定了整機(jī)系統(tǒng)電磁兼容及硬件電路設(shè)計(jì)方案,分析副邊串聯(lián)型雙管正激式隔離DC/DC拓?fù)涞墓ぷ髟?選用TI公司的TMS320F2812型DSP來(lái)實(shí)現(xiàn)數(shù)字控制系統(tǒng);再次,對(duì)整機(jī)的電磁兼容需求和干擾源作詳細(xì)分析,提出并設(shè)計(jì)電磁兼容(Electromagnetic Compatibility,EMC)的解決方法;然后,對(duì)整機(jī)所有硬件電路進(jìn)行了設(shè)計(jì),以及對(duì)重要功率器件的參數(shù)選型作了詳細(xì)闡述;最后,在完成的樣機(jī)平臺(tái)上進(jìn)行波形分析、功能測(cè)試、效率測(cè)試、電磁兼容測(cè)試等,最終驗(yàn)證整機(jī)方案的可行性,并滿足預(yù)期設(shè)計(jì)功能和參數(shù)指標(biāo)。本文完成智能充電機(jī)硬件電路設(shè)計(jì)和實(shí)現(xiàn),根據(jù)最終制智能充電機(jī)樣機(jī)的測(cè)試結(jié)果,系統(tǒng)最大效率為89%;輸出電壓和電流精度分別為0.5%和1%;通過(guò)CAN或RS-485通信,實(shí)現(xiàn)遠(yuǎn)程充電參數(shù)修改、充電曲線繪制、故障記錄等功能;完善的保護(hù)功能可以實(shí)現(xiàn)完全無(wú)人值守充電;通過(guò)了電磁兼容殘酷實(shí)驗(yàn)測(cè)試,驗(yàn)證整機(jī)的可靠性及穩(wěn)定性。
[Abstract]:At present, battery is an important tool for people to use clean energy, and has been widely used. With the variety of batteries is becoming more and more complex, the traditional charger, which is an important charging tool for batteries, is also facing great challenges. The intelligent charger with the functions of different battery sets, perfect fault protection, unattended charging and remote modification of charging parameters is in urgent need. The purpose of this paper is to design and implement an intelligent charging electromechanical circuit system which combines digital control technology with high frequency switch technology. It overcomes the shortcomings of traditional charging machine such as imperfect fault protection function, low energy efficiency ratio and manual charge on duty. Firstly, according to the research background of the paper, the design parameters and function index of intelligent charger are put forward. Secondly, the design scheme of electromagnetic compatibility and hardware circuit of the whole machine system is determined, and the working principle of the secondary side series double transistor forward isolation DC/DC topology is analyzed, and the TMS320F2812 DSP of TI Company is selected to realize the digital control system. Thirdly, the electromagnetic compatibility requirement and interference source of the whole machine are analyzed in detail, and the solution of electromagnetic compatibility (Electromagnetic Compatibility,EMC) is proposed and designed. Then, all the hardware circuits of the whole machine are designed, and the parameter selection of important power devices is described in detail. Finally, waveform analysis, function test, efficiency test, electromagnetic compatibility test and so on are carried out on the completed prototype platform. Finally, the feasibility of the whole machine scheme is verified, and the expected design function and parameters are satisfied. The hardware circuit of intelligent charger is designed and realized in this paper. According to the test results of the prototype of intelligent charger, the maximum efficiency of the system is 89, the precision of output voltage and current are 0.5% and 1%, respectively. Through CAN or RS-485 communication, remote charging parameters modification, charging curve drawing, fault recording and other functions can be realized, and the perfect protection function can realize completely unattended charging. The reliability and stability of the whole machine are verified by the cruel test of EMC.
【學(xué)位授予單位】：電子科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TM910.6

【共引文獻(xiàn)】

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本文編號(hào)：2350272