NDLI: Sampled value-based bus zone protection scheme with dq-components

Content Provider	IET Digital Library
Author	Jena, Soumitri Bhalja, Bhavesh R.
Abstract	This study presents a novel algorithm based on dq-components, which has been effectively used for bus zone protection. The analogue current transformer (CT) secondary signals are acquired and converted into sampled values. Then, the fundamentals of an instantaneous current-based differential protection scheme (87B) have been considered to establish the trip logic of the proposed scheme. Its performance has been validated by simulating faults on an existing 400-kV substation with a double-bus-single-breaker configuration. Moreover, a laboratory test bench has been developed to test the authenticity of the proposed scheme for various fault scenarios. The obtained results from the simulation model and laboratory prototype testify the claims of higher sensitivity during internal faults and better stability during external faults with CT saturation. The proposed scheme has been able to provide high-speed busbar protection against a wide range of internal faults. Comparative evaluation with contemporary busbar protection schemes clearly indicates its superiority.
Starting Page	4520
Ending Page	4528
Page Count	9
ISSN	17518687
Volume Number	14
e-ISSN	17518695
Issue Number	Issue 20, Oct (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-gtd/14/20
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2019.1649
Journal	IET Generation, Transmission & Distribution
Publisher Date	2020-07-29
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Analogue Current Transformer Secondary Signal Busbars Contemporary Busbar Protection Scheme Current Measurement Current Transformers Differential Protection Scheme Double-bus-single-breaker Configuration Dq-components Electric Current Measurement Existing 400-kV Substation External Fault Fault Scenario High-speed Busbar Protection Internal Fault Laboratory Prototype Laboratory Test Bench Power System Protection Power Transformer Protection Relay Protection Sampled Value Sampled Value-based Bus Zone Protection Scheme Simulation Model Substation Protection Substations Transformer And Reactors
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

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