摘要本文首先研究了电动汽车的发展现状和趋势,日美等国研发电动汽车来代替传统汽车以解决能源和环境问题,由此提出了研究该课题的背景及意义,然后介绍了谐波的相关概念,通过介绍谐波对电网的危害来阐述研究该课题的重要性,然后对含电动汽车充电站的电网进行理论分析,在此基础上对电动汽车充电站进行谐波分析。
其次,利用Simulink构建了单台充电机和多台充电机的仿真模型,在实验中改变充电机的相关参数如滤波电感等,观察基波和谐波电流的改变规律,通过仿真研究了充电机谐波和功率因数,以此为理论依据提出治理含电动汽车充电站的电网的谐波治理和无功补偿的方案。22984
关键词 :电动汽车;充电机;电能质量;Simulink;
毕业设计说明书(毕业论文)外文摘要
Title Research on Power Quality Analysis on Grid with Electric Vehicle Charging Station
Abstract
This paper studies the development status and trends of electric vehicles first, Japan ,America and other countries develop electric vehicles to replace conventional cars to solve energy shortage and environmental problems. Then the paper presents the background and meaning of the study of the project. We illustrate the importance of the study by introducing
the influence of harmonics on the grid. Then we analyze the power quality theoretically as a basis.
The single charge and multiple chargers simulation models are constructed by Simulink. Change the charger’s relevant parameters such as filter in the simulation and observe the changing law of fundamental and harmonic currents. The simulation studies harmonics and power factor of charging station. Then we propose the methods of harmonic control and reactive compensation.
Keywords electric vehicles; charger; power quality; Simulink
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