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摘要目前，随着环境污染等问题不断加重，发展电动汽车成为降低污染，开发新能源，提高能源使用率的一种有效途径。因此，社会各届都已经开始研究、开发电动汽车相关的技术。
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本文介绍电动汽车的基本原理、并网特点、应用现状及技术发展趋势，重点介绍了电力系统电压稳定和控制的概念，对不同渗透率下电动汽车充电行为对电网电压稳定性的影响进行了研究，运用PAST软件建立电动汽车并网系统仿真模型并进行仿真分析，运用连续潮流法搜索大规模电动汽车并网后系统的分岔点，从而深入分析其对电网电压稳定性的影响机理。46506
（1）学习和掌握电动汽车的基本原理、并网特点、应用现状及技术发展趋势。
（2）学习和掌握电力系统电压稳定和控制的基本概念和基本原理，
（3）学习并熟练应用基于MATLAB的电力系统分析工具箱PSAT。
（4）研究连续潮流法（CPF），熟练掌握PSAT提供的连续潮流计算模块。
（5）在美国3机10节点系统基础上规模化接入电动汽车负荷，运用PSAT建立电动汽车并网系统仿真模型，应用连续潮流计算模块进行仿真分析，搜索影响系统电压稳定性的分岔点，研究不同渗透率下电动汽车充电行为对系统电压稳定性的影响，深入分析大规模电动汽车并网对系统电压稳定性的影响。
毕业论文关键词： 电动汽车，电力负荷，电网电压，电力系统，PSAT
Abstract
The development of electric vehicles is an effective way to reduce pollution, develop new energy and improve energy efficiency, as the environmental pollution and other issues continue to increase. Therefore, the society has begun to research and develop the technology of electric vehicle.
Is introduced in this paper electric vehicle basic principle, network characteristics, application status and technical development trend, focuses on the concept of power system voltage stability and control, of different permeability of electric vehicle charging behavior influence on power system voltage stability is studied, used past software to establish the vehicle to grid system simulation model and simulation analysis, search of large scale grid connected electric vehicles after the bifurcation point of the system using continuation power flow method, to deeply analyze the mechanism of impact on the voltage stability of power grid.
(1) to learn and master the basic principles of electric vehicles, the characteristics of the grid, application status and technical development trend.
(2) to learn and master the basic concepts and basic principles of voltage stability and control of power system,
(3) learn and apply the power system analysis toolbox MATLAB based on PSAT.
(4) to study the continuous power flow method , master the continuous flow calculation module provided by PSAT.
Effect of (5) in the United States machine 3 10 node system based on scale access electric vehicle load, using PSAT simulation model of the electric vehicle grid connected system is established, by continuous power flow calculation module carries on the simulation analysis, search the influence on system voltage stability bifurcation point and study different permeability under electric vehicle charging behavior on voltage stability of the system, in-depth analysis of the influence of large scale grid connected electric vehicles on voltage stability of the system.
Key words: power load, electric vehicle, power system voltage, power system, past
目录
一 绪论 1
1.1前言 1
1.2电动汽车的研究现状 1
1.3本文的主要工作 2
二 电动汽车的负荷特性 3
2.1前言 3
2.2充电时电动汽车的负荷特性 3
2.3电动汽车负荷波动的相关 4
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