低压动态无功补偿的毕业设计方案.docVIP

本科生毕业设计（论文） 题 目：低压动态无功功率补偿装置的设计 学生姓名： 韩玉倩 系 别： 机械与电气工程系 专业年级： 2008级本科四班 指导教师： 朱玉华 2012年 5 月 19 日摘 要 随着现代工业的飞速发展，电力系统负荷的增加对电能质量的要求越来越高和无功功率的需求也日益增加，无功补偿是电能质量的重要保证。无功功率在电网中传输会造成网络损耗以及受电端电压下降，使电能利用率大大降低且严重影响供电质量。在低压供电系统中，低压无功补偿装置的功能是向感性负载设备就近提供无功功率。由于用电设备中感性负载设备用电量占整个用电量的三分之二以上，显然针对感性负载提供无功功率对于降低线损，降低供电设备容量，改善供电线路的功率因数以及稳定电力系统的电压起到至关重要的作用。文章介绍了有关于无功补偿的概念、意义，阐述了国内外无功补偿的现状与发展趋势，及其一些基础知识，并介绍了基于TSC的无功补偿器，最后介绍了无功补偿的发展前景。 关键词： ABSTRACT With the rapid development of modern industry， electric power system load increases to the electric power quality requirements of the more and more high and reactive power demand is increasing， the reactive power compensation is the important guarantee of power energy quality． Transmission of reactive power in electric network will cause the network loss and step-down voltage, make the energy utilization rate greatly reduced and the serious influence the quality of power supply. In the low voltage power supply system， low voltage reactive compensation device is the function of the inductive load equipment near to provide reactive power Because the electric equipment to the perceptual load of the total power consumption equipment of power consumption of the two-thirds． apparently targeted perceptual load provide reactive power for reducing the line loss， reduces the power supply equipment capacity and improve the power factor of power lines and power system voltage stability of play a crucial role． This paper introduces about the reactive power compensation of the concept， significance， expounds the reactive power compensation at home and abroad and the present status and development trend， and some basic knowledge， and introduces the reactive power compensation based on TSC is finally introduces the development prospect of the reactive power compensation． Keyw