NDLI: Adaptive impedance-based out-of-step detection of synchronous generator without any network reduction

Content Provider	IET Digital Library
Author	Yaghobi, Hamid
Abstract	An adaptive technique for out-of-step (OOS) protection by modifying the impedance-based method is proposed in this study. Impedance-based methods are powerful and are operational in the power system as the main protection of OOS conditions. The setting of these relays depends on some parameters of the generator and power system that should be updated for the setting. The presence or absence of generator units in a power plant and transient conditions directly affects the machine dynamic parameters. Service or not in service of power lines and power system configurations can change the impedance of the power system at the generator terminals. Furthermore, to use the methods in a multi-machine power system, an equivalent two-area system is needed that is a complicated and time-consuming procedure. It should be made clear that these complexities limit the application of the impedance-based methods. Therefore, to remove these complexities, all factors that influence the relay setting are considered together in this research. The simulation results show that the proposed adaptive technique overcomes some of the problems and difficulties associated with impedance-based methods as well.
Starting Page	762
Ending Page	773
Page Count	12
ISSN	17518687
Volume Number	14
e-ISSN	17518695
Issue Number	Issue 5, Mar (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-gtd/14/5
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2019.0850
Journal	IET Generation, Transmission & Distribution
Publisher Date	2019-10-31
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Adaptive Impedance-based Out-of-step Detection Equivalent Two-area System Fault Location Generator Terminals Machine Dynamic Parameter Machine Protection Multimachine Power System Network Reduction OOS Protection Power Cables Power Line Service Power Plant Power System Configurations Power System Protection Power Transmission Line Relay Protection Relay Setting Synchronous Generator Synchronous Machine Time-consuming Procedure
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

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