Uncertainty in Transmission Line Parameters: Estimation and Impact on Line Current Differential Protection

被引：65
|
作者：
Sivanagaraju, Gangavarapu [1 ]
Chakrabarti, Saikat [2 ]
Srivastava, S. C. [2 ]
机构：
[1] Ashok Leyland Tech Ctr, Chennai 600103, Tamil Nadu, India
[2] Indian Inst Technol, Dept Elect Engn, Kanpur 208016, Uttar Pradesh, India
来源：
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT | 2014年 / 63卷 / 06期
关键词：
Current differential protection; parameter uncertainties; phasor measurement unit (PMU); transmission line modeling; FAULT DETECTION/LOCATION TECHNIQUE;
D O I：
10.1109/TIM.2013.2292276
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 presents a method to estimate the transmission line parameters using synchrophasor measurements from phasor measurement units (PMUs), as well as hybrid measurements from PMU and supervisory control and data acquisition system. It also proposes a method to estimate transmission line parameter uncertainties considering the measurement inaccuracies. Transmission line protection is important for secure and reliable operation of the power system. With the advent of the synchrophasor technology and advances in the communication system, current differential relays can be implemented as a reliable protection system for the transmission lines. In this paper, a new current differential protection scheme has been suggested for transmission line protection using synchronized measurements. The effect of parameter uncertainty on the protection scheme is also investigated.
引用
收藏
页码：1496 / 1504
页数：9
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