【摘要】：直流充電樁系統(tǒng)作為充電基礎(chǔ)設(shè)施的重要組成部分,其性能的優(yōu)劣將直接影響電動(dòng)汽車的發(fā)展。因此,設(shè)計(jì)功能完善、安全可靠、兼容性好的電動(dòng)汽車直流充電樁系統(tǒng)就具有重要的實(shí)際工程意義。本文在分析了電動(dòng)汽車直流充電樁系統(tǒng)的功能及軟硬件需求后,完成了整樁結(jié)構(gòu)及控制系統(tǒng)的總體方案設(shè)計(jì)。方案中,功能組件模塊化的設(shè)計(jì)降低了軟硬件的設(shè)計(jì)難度,DSP+ARM雙控制板結(jié)構(gòu)的設(shè)計(jì)提高了數(shù)字控制系統(tǒng)的安全性、兼容性和可擴(kuò)展性。將直流充電樁硬件分為三層結(jié)構(gòu),完成了基于雙控制板的硬件設(shè)計(jì)并給出了控制板電路、輔助電路的詳細(xì)設(shè)計(jì)過程。其中帶保護(hù)的通信電路,帶隔離的供電、采樣電路,帶反饋的急停、防雷、門禁電路的設(shè)計(jì)使控制系統(tǒng)滿足了更高的安全要求。從充電控制、故障保護(hù)、人機(jī)交互、聯(lián)網(wǎng)監(jiān)控四個(gè)方面分析了直流充電樁的設(shè)計(jì)原理,完成了基于多任務(wù)模塊的軟件設(shè)計(jì)。將直流充電樁軟件分成多個(gè)任務(wù)模塊,研究主要流程中任務(wù)模塊之間的交互流程,并在此基礎(chǔ)上設(shè)計(jì)了任務(wù)模塊的程序流程圖。軟件設(shè)計(jì)中有限狀態(tài)機(jī)技術(shù)的使用提高了控制系統(tǒng)的安全性。搭建了直流充電樁實(shí)驗(yàn)平臺(tái),進(jìn)行了充電控制、故障保護(hù)、人機(jī)交互、聯(lián)網(wǎng)監(jiān)控的功能實(shí)驗(yàn),并對(duì)實(shí)驗(yàn)結(jié)果進(jìn)行分析,驗(yàn)證了總體方案及軟硬件設(shè)計(jì)的正確性及可行性。
[Abstract]:DC charging pile system as an important part of charging infrastructure, its performance will directly affect the development of electric vehicles. Therefore, it is of great practical significance to design DC charging pile system of electric vehicle with perfect function, safety and reliability and good compatibility. After analyzing the function, software and hardware requirement of DC charging pile system of electric vehicle, the overall scheme design of the whole pile structure and control system is completed in this paper. In the scheme, the modular design of functional components reduces the difficulty of hardware and software design and improves the security, compatibility and expansibility of the digital control system. The hardware of DC charging pile is divided into three layers. The hardware design based on double control board is completed and the detailed design process of control board circuit and auxiliary circuit is given. The design of the communication circuit with protection, the power supply with isolation, the sampling circuit, the sudden stop with feedback, the lightning protection circuit and the access control circuit make the control system meet higher security requirements. The design principle of DC charging pile is analyzed from four aspects: charging control, fault protection, man-machine interaction and network monitoring. The software design based on multi-task module is completed. The DC charging pile software is divided into several task modules, and the interaction flow between the task modules in the main flow is studied. Based on this, the program flow chart of the task module is designed. The use of finite state machine technology in software design improves the security of the control system. The experiment platform of DC charging pile is built, and the functional experiments of charging control, fault protection, man-machine interaction and network monitoring are carried out. The results of the experiment are analyzed, and the correctness and feasibility of the overall scheme and the design of software and hardware are verified.
【學(xué)位授予單位】：南京理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TM910.6

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