Characteristic of voltage dips (sags) in power systems

被引：0

作者：

Zhang, LD ^{[1
]}

Bollen, MHJ ^{[1
]}

机构：

[1] Chalmers Univ Technol, Dept Elect Power Engn, S-41296 Gothenburg, Sweden

来源：

8TH INTERNATIONAL CONFERENCE ON HARMONICS AND QUALITY OF POWER, PROCEEDINGS, VOLS 1 AND 2 | 1998年

关键词：

power quality; voltage dips; power systems; symmetrical components;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper analyses the characteristic of voltage dips in power systems with special emphasis on unbalanced dips and symmetrical components analysis. A generalized dip model is built for all unbalanced dips taking into account the fault types, transformer types and load connections, which shows the transformation for different types of unbalanced dips. The characterization results in a so-called "Remaining Complex Voltage" (a generalized magnitude and phase angle shift) for balanced and unbalanced dips and a factor, related to the relating machine contribution to the source impedance for unbalanced dips. It is shown that the factor is close to unity, so that both balanced and unbalanced dips can be characterized through one phasor.

引用

页码：555 / 560

页数：6

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