城市电动汽车充电桩监控系统研究

发布时间：2018-03-17 22:12

本文选题：电动汽车　切入点：充电站　出处：《西南交通大学》2017年硕士论文　论文类型：学位论文

【摘要】：充电站是电动汽车集中充电的场所,电动汽车充电站监控系统对于保障充电过程中汽车及设备安全,提高充电站效率及管理自动化水平发挥着不可替代的作用,对充电站监控系统的研究具有重要的理论与实际意义。首先,研究了电动汽车充电对电网产生的谐波影响。城市电动汽车充电站监控系统需要考虑电动汽车充电所产生的谐波问题,本文在Simulink平台下建立了仿真分析模型,研究电动汽车充电对电网的谐波影响。研究了不同功率下充电桩380V输入侧引起的电压谐波畸变,得到了电压总谐波畸变曲线,进而考虑电动汽车的普及程度,研究了不同渗透率下充电站10kV接入点的电压谐波畸变,得到了电压总谐波畸变曲线,并进行了对比分析。其次,设计了电动汽车充电站监控系统总体方案。分析了充电站监控系统的总体结构,并对监控系统进行了功能需求分析,设计了监控系统的通信网络,并研究了充电站监控系统的数据流向及各阶段所进行的数据操作。在上述电动汽车充电对电网谐波影响的研究基础上,研究了一种包含三种充电方式的监控系统方案,将包括谐波在内的电能质量监控纳入设计方案中,弥补目前充电站监控系统功能中存在的不足,依据监控功能差异进行了子系统划分。最后,研究各个子系统的功能设计与软件实现。基于LabVIEW平台进行软件设计,分析用户管理系统的功能,采用access数据库管理用户信息,完成软件设计及实现;研究了充电过程中的信息交互过程、常见异常及故障类型,完成了充电监控系统设计;分析了换电流程,将动力电池全寿命周期管理纳入系统设计,梯次电池利用,完成了换电监控系统软件设计;研究了电能质量监控系统的功能,并研究针对几种常见指标的调节和控制策略,完成电能质量监控系统的总体设计、电能质量常见指标的软件程序实现并进行模拟功能测试;研究了配电监控功能需求、异常和故障类型,完成了配电监控系统软件设计;研究了安防监控系统的功能需求,并完成了软件系统的设计。
[Abstract]:Charging station is the place where electric vehicles charge centrally. The monitoring system of electric vehicle charging station plays an irreplaceable role in ensuring the safety of vehicle and equipment, improving the efficiency of charging station and the level of management automation. The research of charging station monitoring system has important theoretical and practical significance. First, The harmonic effect of electric vehicle charging on power grid is studied. The harmonic problem caused by electric vehicle charging need to be considered in the monitoring system of urban electric vehicle charging station. A simulation analysis model is established based on Simulink platform. The harmonic distortion of voltage caused by charging pile 380V input side under different power is studied, the total harmonic distortion curve of voltage is obtained, and the popularity of electric vehicle is considered. The voltage harmonic distortion of 10 kV access point in charging station with different permeability is studied, the total harmonic distortion curve of voltage is obtained, and the comparison and analysis are carried out. The overall scheme of monitoring system for charging station of electric vehicle is designed. The overall structure of monitoring system of charging station is analyzed, and the function requirement of monitoring system is analyzed, and the communication network of monitoring system is designed. The data flow direction of charging station monitoring system and the data operation in each stage are studied. On the basis of the above research on the influence of electric vehicle charging on power grid harmonics, a monitoring system scheme including three charging modes is studied. The power quality monitoring, including harmonics, is brought into the design scheme to make up for the deficiency in the function of the current charging station monitoring system, and the subsystem is divided according to the difference of the monitoring function. Finally, The function design and software realization of each subsystem are studied. The software is designed based on LabVIEW platform, the function of user management system is analyzed, the user information is managed by access database, and the software is designed and implemented. The information exchange process, common anomalies and fault types during charging are studied, and the design of charging monitoring system is completed, and the power exchange flow is analyzed, the whole life cycle management of power battery is incorporated into the system design, and the ladder battery is utilized. The software design of the power exchange monitoring system is completed, the function of the power quality monitoring system is studied, and the adjustment and control strategies for several common indexes are studied to complete the overall design of the power quality monitoring system. The software program of the common power quality index is realized and simulated function test is carried out, the functional requirements, abnormal and fault types of distribution monitoring are studied, the software design of distribution monitoring system is completed, and the functional requirements of security monitoring system are studied. The software system is designed.
【学位授予单位】：西南交通大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：U491.8;TP277

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