深圳电网电动汽车充电站谐波问题研究

发布时间：2018-01-15 08:44

本文关键词：深圳电网电动汽车充电站谐波问题研究　出处：《华南理工大学》2014年硕士论文　论文类型：学位论文

【摘要】：近年来，我国的汽车保有量持续增多，汽车石油的消耗量已经占到国家石油总消耗量的35%，严重威胁到了国家的能源与经济安全，而且给环境带来了很大的污染。电动汽车以电代油，是未来汽车工业的必然趋势。为了推广电动汽车的应用，电动汽车充电站作为电动汽车的基础设施，将大量建成投运。由于电动汽车充电机属于非线性电力电子设备，会导致大量的谐波污染，因此针对电动汽车充电站的谐波问题开展研究工作具有重要的工程实际意义。本文围绕深圳电网已建成的电动汽车充电站，针对电动汽车充电站产生的谐波问题进行分析，主要包括以下几方面内容： 1.详细介绍了电动汽车充电站典型设计和建设方案，对电动汽车的建设规模、建设范围、建设原则和总体结构进行说明； 2.对单台电动汽车充电机进行了现场谐波实测，分析了充电4个过程中的谐波特性，并依此建立了电动汽车充电机的幅频特性模型； 3.针对电动汽车充电站不同工况进行了仿真模拟，评估了电动汽车充电站产生的谐波对电网的影响； 4.针对电动汽车充电站，有针对性的提出了治理措施，并对比了2种治理措施的效果。本文懫用理论分析、实际测量及仿真建模的方法研究电动汽车充电站的谐波特性，评估了电动汽车充电站对电网的影响，并在此基础上对比分析了两种电动汽车充电站谐波治理方案。仿真结果表明了治理效果的有效性，对深圳电网电动汽车充电站的建设具有参考意义。
[Abstract]:In recent years, the amount of automobile in our country has been increasing, and the consumption of automobile oil has accounted for 35% of the total national oil consumption, which has seriously threatened the national energy and economic security. In order to promote the application of electric vehicles, charging stations of electric vehicles are the infrastructure of electric vehicles. The electric vehicle charger belongs to the nonlinear power electronic equipment, which will lead to a large number of harmonic pollution. Therefore, the research on harmonics of electric vehicle charging station is of great practical significance. This paper focuses on the electric vehicle charging station built in Shenzhen power grid, and analyzes the harmonic generation of the electric vehicle charging station, mainly including the following aspects: 1. The typical design and construction scheme of electric vehicle charging station are introduced in detail, and the construction scale, construction scope, construction principle and overall structure of electric vehicle are explained. 2. The harmonic measurement of a single electric vehicle charger is carried out, and the harmonic characteristics in the four charging processes are analyzed, and the amplitude-frequency characteristic model of the electric vehicle charger is established. 3. The electric vehicle charging station is simulated under different working conditions, and the influence of the harmonics generated by the electric vehicle charging station on the power grid is evaluated. 4. Aiming at the charging station of electric vehicle, the paper puts forward the control measures, and compares the effect of two kinds of measures. In this paper, the harmonic characteristics of electric vehicle charging station are studied by theoretical analysis, practical measurement and simulation modeling, and the influence of electric vehicle charging station on power network is evaluated. On this basis, two harmonic treatment schemes of electric vehicle charging station are compared and analyzed. The simulation results show the effectiveness of the control effect, which has reference significance for the construction of electric vehicle charging station in Shenzhen power network.
【学位授予单位】：华南理工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U491.8;TM73

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