计及电动汽车充电负荷的配网安全性与可靠性研究

发布时间：2018-06-09 00:03

本文选题：电动汽车充电负荷 + 小区配电系统　；参考：《华北电力大学》2014年硕士论文

【摘要】：近年来随着环境和能源问题的日益严峻,我国开始逐渐重视电动汽车业发展,提出了一系列发展战略。在此背景下电动汽车充电负荷将进一步增加,并且有可能成为未来配电网中比例最大的一类负荷。为此本文首先分析了电动汽车充电设施的基本形态、对应的不同的供电方式和运行方式,并依据权威部门的预测数据对各类电动汽车车辆数及其充电设施的未来发展进行了预测和分析；然后以带有电动汽车充电负荷的住宅小区为研究重点,从安全性和可靠性两方面对计及电动汽车充电负荷的配电系统进行了研究。对于配电网的安全性,本文以住宅小区电动私家车规模化应用为背景,首先搭建中低压住宅配电系统和电动私家车充电负荷的pscad仿真模型,然后以不同的方案在搭建的小区仿真模型中加入不同数量的电动私家车充电负荷。研究不同方案对住宅小区配网的线路过载、变压器过载和母线电压越限的影响,并给出了对于现行小区,电动汽车充电负荷的接入点和接入方案的建议。对于配电网的可靠性,本文首先根据电动私家车的充电模式、充电需求、起始充电时间和起始SOC,按照不同的渗透率仿真出了住宅小区内无序和有序充电模式下的充电负荷。然后以IEEE-RTBS6可靠性测试系统为例,按照不同接入位置、充电模式和电动汽车渗透率接入带有充电负荷的住宅小区负荷,分析了不同影响因素对配电系统可靠性的影响,并给出了适合住宅小区的电动汽车渗透率和充电模式的建议。
[Abstract]:In recent years, with the increasingly serious environmental and energy problems, China began to pay attention to the development of electric automobile industry, and put forward a series of development strategies. In this context, the charging load of electric vehicles will be further increased, and it may become the largest proportion of load in the distribution network in the future. Firstly, this paper analyzes the basic configuration of electric vehicle charging facilities, the corresponding different power supply modes and operation modes. According to the forecast data of the authority department, the future development of all kinds of electric vehicles and their charging facilities are forecasted and analyzed, and then the residential area with electric vehicle charging load is taken as the research focus. The distribution system considering the charge load of electric vehicle is studied from two aspects of safety and reliability. For the safety of distribution network, the background of this paper is the large-scale application of electric private car in residential district. First, the pscad simulation model of charging load of medium and low voltage residential distribution system and electric private car is built, and then different numbers of charging load of electric private car are added to the simulation model of residential area with different schemes. This paper studies the influence of different schemes on line overload, transformer overload and bus voltage overrun of residential district distribution network, and gives some suggestions on access point and access scheme for current residential area, electric vehicle charging load, and reliability of distribution network. Firstly, according to the charging mode, charging demand, initial charging time and starting SOC of electric private cars, the charging load under disorderly and orderly charging mode in residential district is simulated according to different permeability. Then taking IEEE-RTBS6 reliability test system as an example, according to different access position, charging mode and electric vehicle permeability to the residential area load with charging load, the influence of different factors on the reliability of distribution system is analyzed. The permeability and charging mode of electric vehicle suitable for residential district are also given.
【学位授予单位】：华北电力大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U469.72;TM910.6

【参考文献】