【作者】 夏亮；

【导师】 李群湛；

【作者基本信息】 西南交通大学 ， 电机与电器， 2012， 硕士

【摘要】 电气化铁路因其高速重载、运量大、运输成本低、经济效益好、环保等诸多特点,近年来在我国发展迅速。根据我国《中长期铁路网规划》,到2020年,电气化铁路总里程将会达到全国铁路营业里程的一半,承担的铁路运量比重将超过80%。如此大量的电气化铁路负荷势必对公用电网造成巨大影响,如何改善电气化铁路的电能质量,减弱电气化铁路对电网电能质量的影响成为重要研究课题。因此建立一套能够对电气化铁路牵引网的电能质量进行可视化的软件十分必要,用户可通过可视化软件对电能质量数据进行检测与分析,从而为改善电能质量提供便利。文中通过分析电气化铁路的负荷特点,并根据我国电能质量相关国标中发布的六项电能质量主要指标(电网谐波、电压偏差、电压波动及闪变、频率偏差、三相不平衡度、暂时过电压和瞬态过电压)情况,确定了电能质量可视化的主要指标对象为负序(三相电压不平衡度)和谐波。可视化软件对以上两项指标的监测数据进行可视化,方便用户进行分析和研究。根据以上可视化需求,作者设计和开发了一套电能质量可视化软件。作者在可视化实践中,根据实践经验和可视化理论提出了一些可视化的新主张,以期获得更好的可视化效果。根据课题要求,作者设计和开发的可视化软件采用Visual Studio2010平台进行软件设计,采用C#代码在WPF环境下进行代码编写。并采用模块化设计思路完成了电能质量可视化软件的数据库连接、数据查询、图形输出和报表生成等功能。由实际操作体验表明,本文所设计的电能质量可视化软件界面友好、操作简单、效果良好。更多还原

【Abstract】 Because of its characteristics, such as high speed, heavy transport, large transport, good economic benefits, environment friendly, electric railway grows fast in recent years. According to the "long-term railway network planning" of China, the total mileage of electric railway will make up a half mileage of all railways in China until2020.And it will convey over80percent traffic quantity of railway. So large number of load of electric railway should have a huge impact on the public supply network, so they become important research topics that how to improve the power quality of electric railway and how to weaken the impact.So design a set of visualization software which works for the visualization of the power quality data of electric railway power supply network is necessary. By using this software, users can offer basses for improving power quality.Through analyzing the load characteristics of electric railway in this article, and according to the main indexes of the power quality in the national standards, author determines the key indicators of visualization are negative sequence and harmonic. Visualization software visualizes those two indexes, so it can provide convenient for analysis and researching.According to the visualization requirements, author designs and develops a set of visualization software on power quality. According to practical experience and the theory of visualization, the author propose some new ideas of visualization which may get a few better resuits of visualization.According to the claims of the object, that software uses Visual Studio2010platform and C#with WPF mode. It uses the way of modular design, and it fulfills series of functions which are connecting to database, querying data, exporting graphical and generating report forms. It shows by operating experiences that this visualization software of power quality has friendly interface, simple operation and good effects.更多还原