摘要随着电动汽车的普及,电动汽车的规模越来越大,规模化的电动汽车充电必将对电网产生很大影响。电网稳定关系着企业和居民用电,对日常生活和生产发展有着重要影响,因此本文将着重于电动汽车充电对配电网产生的影响展开研究,以及探讨一些负荷分配对策。
电动汽车作为一个负荷接入电网,同时也会产生谐波。规模化的电动汽车充电产生很大的谐波。本文将首先通过matlab建模对比分析电动汽车形成的谐波,然后通过蒙特卡洛方法计算出电动汽车的日负荷曲线。可以根据负荷曲线引导电动汽车避开负荷高峰进行充电。随着电动汽车的普及与发展和V2G技术的运用,电动汽车将带动经济环境发展,同时满足可持续发展的要求。19389
关键词 电动汽车,谐波,负荷,电网,电力系统,V2G
毕业论文设计说明书(论文)外文摘要
Title the study of the impact of large-scale electric vehicle charging on distribution network
Abstract
With the popularity of electric vehicles, large-scale electric vehicle charging no doubt will have some impact on the grid. Electric vehicle charging device similar to power electronic converters, it will produce harmonics when connected to the grid, it will become a load connected to the grid either. Grid stability is relative to the business and residential electricity, it makes a difference to the development and production. Therefore, this article will focus on the impact of electric vehicle charging on distribution network, and explore some of the load distribution countermeasures.
Electric vehicles connect to the grid as a load, it also produce harmonics. Large-scale electric vehicle charging leads to great harmonics. This article will first analyze the harmonic formed by electric vehicles using matlab modeling and use Monte Carlo methods to calculate the daily load curve of electric vehicles. According to which, we can guide the cars charging avoiding the load peak. With the popularity of the using and development of electric vehicles and V2G technology, Electric cars will drive the development of the economic and environment, while meeting the requirements of sustainable development.
Keywords Electric cars, harmonic, load, Grid, power systems, V2G
目 次
1 引言 1
1.1 研究背景及意义 1
1.2 国内外发展现状 1
1.3 论文主要工作 3
2 电动汽车充电造成的谐波 5
2.1 充电机类型 5
2.2 充电机模型 6
2.3 电网-充电站模型 7
2.4 本章小结 17
3 电动汽车接入电网形成的负荷 18
3.1 电动汽车充电站结构以及负荷分类 18
3.2 充电机负荷模型 18
3.3 影响电动汽车负荷因素 19
3.3.1 电动汽车发展状况 19
3.3.2 电动汽车充电方式 20
3.3.3 电动汽车充电频率 20
3.3.4 电动汽车使用情况 21
3.3.5 电池特性 22
3.4 大量电动汽车接入电网的负荷模型 22
3.5 蒙特卡洛方法计算电动汽车充电负荷 23
3.6 电动汽车充电对电网的调峰填谷作用 29
3.7 本章小结 31
4 V2G技术 33
4.1 V2G技术(Vehicle-to-grid) 33 matlab规模化电动汽车充电对配电网影响研究:http://www.751com.cn/zidonghua/lunwen_10723.html