A new method for detecting loss of synchronism using power and current measured on a line

被引：9

作者：

Minakawa, T ^{[1
]}

Sato, M

Ichikawa, Y

Ishihara, Y

机构：

[1] Tohoku Gakuin Univ, Tagazyo, Japan

[2] Tohoku Elect Power Co, Sendai, Miyagi, Japan

[3] Toshiba Corp, Tokyo, Japan

来源：

IEEE TRANSACTIONS ON POWER DELIVERY | 1999年 / 14卷 / 01期

关键词：

loss of synchronism; real time; detection; local measurements; power versus phase angle curve;

D O I：

10.1109/61.736687

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：

When a fault occurs, coherently swinging generators form one group and the remaining ones form another. If the fault is severe, loss of synchronism may take place between groups after single or multiple swings. This paper proposes a new method for detecting loss of synchronism. With this method, power and current are measured at regular intervals on a tie-line linking sub-networks to which groups of generators belong. Changes in power and current are calculated during the interval, the location and direction of operating point of power system moving on the curve of power versus phase angle is estimated and the loss of synchronism is detected. The validity of the method is shown by simulations using model networks.

引用

页码：68 / 73

页数：6