摘要
随着电力电子技术的迅速发展,先进的、性能优越的交直流调速装置得到了广泛的应用,但它却向电网注入高次谐波电流,引起电网电压、电流波形发生畸变,影响了其它设备的运行。本文以6脉波、12脉波晶闸管整流装置为例,分析了装置的控制角与换相角之间的关系,并给出了电压畸变率与短路容量比 S·C·R 之间的关系曲线,阐述了满足“规定”要求时,系统短路容量和调速装置容量的配合问题。
With the development of the power electronic technique rapidly,advanced high per- formance AC-DC speed control equipments have been widely used,which,however,inject much harmonic current into the power system,so that many other devices cannot worked properly.In this paper,take a 6-pulse and a 12-pulse thyristor rectifier for example,the relationship between control angle and overlap angle of the equipment is analysed,voltage distortion versus S·C·R is given and the coordination between system short circuit capacity and speed control equipment capa- city are also described.
出处
《电气传动》
北大核心
1989年第3期36-44,共9页
Electric Drive
关键词
电网
交流器
谐波
抑制
Source of harmonic
Harmonic suppression
Short circuit ratios
Voltage distortion
