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Title: Stochastic analysis of fault-induced transients for distance relaying application
Authors: Zhang, Z
Li, KK
Chen, D
Yin, X
Keywords: Distance protection
Fault transient
Stochastic analysis
Issue Date: 2001
Publisher: Elsevier
Source: Electric power systems research, 2001, v. 57, no. 2, p. 115-121 How to cite?
Journal: Electric power systems research 
Abstract: It is well known that the operation of distance relays relies on the power frequency components to calculate the fault impedance and hence make decision on tripping. It is also discovered that the transient induced during fault has a significant effect on the performance of distance protection, especially on that of the high-speed protection. A better understanding on fault transient can lead to a better relay design and better performance in terms of speed and relay reach. This paper analyzes the fault transients in EHV transmission lines by using time-domain stochastic techniques. Major emphasis are placed in the investigation into the differences between the fault transient attributes of different fault types and the transient features of the composite signals used in distance relay, such as the phase-to-phase quantities. This investigation leads to the development of adaptive approaches that can be implemented in digital distance relays in order to achieve an improved relay performance.
ISSN: 0378-7796
EISSN: 1873-2046
DOI: 10.1016/S0378-7796(01)00090-6
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