文档介绍：摘要
随着全球工业水平的不断提高和工业化进程的不断加快,电能质量越来越受到广大电力用户的关注,现如今电力系统中存在着大量无功功率频繁变换的设备和对电压稳定性要求很高的设备,无功功率的补偿在这里就显得尤为重要,不仅能够保证电能质量,稳定电压,还能提高功率因数增加效益。
静止同步补偿器()作为柔性交流输电系统中的核心装置之一,它具有发出容性无功功率和吸收感性无功功率的双向补偿功能,以其先进的控制性能和良好的补偿效果,已逐渐成为无功补偿技术的一个主要发展方向。
的基本工作原理是通过控制交流侧输出的电压的幅值和相位控制装置吸收或发出无功功率。的两种控制策略电流直接控制和电流间接控制,通过比较和分析选择采用电流间接控制方法,并采用基于瞬时无功功率理论的检测算法。的调节特性和动态特性。
关键词:静止同步补偿器电能质量无功功率调节特性动态特性
Abstract
With the development of the industrial level and the process of the industrialization e faster than customers pay more attention on the electric power ,many equipment that change the reactive power frequently and some equipments that need the voltage remain stable in the electric this time pensation of the reactive power means more important to can not only improve the power quality,keep the voltage remain stable and improve the power factors.
The is one of the core device in the flexible exchange transmission can generate or draw reactive power from of the advanced performance in control and the effect of pensation,it e one of the main development direction in reactive pensation technology.
The working principle of is control the amplitude and the phase of the voltage in the AC voltage will discuss the indirect-current control strategy and direct-current control strategy,after contrast the quality in these two strategies,we chose the indirect-current control strategy,and we use the detection algorithm that is based on the instantaneous reactive power ,we use the PSCAD model an emulate system architecture to analyze the regulative quality and dynamic quality of the by the waveforms of some electric variables.
Key words:;power quality;reactive power;regulative quality;dynamic quality
目录
第一章绪论 1
引言 1
研究背景及意义 1
无功补偿的意义 2
引起线路及变压器的电压降增大 2
引起设备及线路的损耗增大 3
增加设备的容量 3
改善电能质量 4
稳定电压 4
改善功率因数 5
本章小结 5
第二章的工作原理及主电路结构 6
的基本结构及基本工作原理 6
的数