Travelling wave protection with disturbance classification for distribution grids with distributed generation

被引：9
|
作者：
Davydova, Nadezhda [1 ]
Hug, Gabriela [1 ]
机构：
[1] Swiss Fed Inst Technol, Power Syst Lab, Zurich, Switzerland
来源：
JOURNAL OF ENGINEERING-JOE | 2018年 / 15期
关键词：
distributed power generation; power distribution protection; power distribution faults; power transmission faults; voltage measurement; power transmission protection; electric current measurement; wave protection; disturbance classification; distribution grids; distributed generation; high penetration; conventional distribution level protection systems; reliable speed; high-speed; cost-efficient protection systems; active grids; protection system; medium voltage lines; high-frequency current measurements; power-frequency voltage measurements; IEEE 34-bus distribution system;
D O I：
10.1049/joe.2018.0176
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The high penetration of distributed generation in distribution grids and the development of microgrids may cause the malfunctioning of the conventional distribution level protection systems. Despite multiple works dedicated to addressing this problem, the development of reliable, high-speed, and cost-efficient protection systems for active grids remains a topical issue. This study proposes a protection system for medium voltage lines that relies entirely on the analytical description of travelling wave transients. This protection uses only local high-frequency current measurements and power-frequency voltage measurements, which potentially makes it a low-cost yet reliable solution. The protection system operates securely by not tripping healthy lines in case of disturbances that do not lead to any faults. The proposed protection is tested on the IEEE 34-bus distribution system with distributed generation.
引用
收藏
页码：830 / 835
页数：6
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