NDLI: Current-based directional relaying scheme to protect series compensated transmission lines used to transmit bulk power produced by power electronics interfaced renewable energy power plants

Content Provider	IET Digital Library
Author	Jalilian, Amin Muttaqi, Kashem M.
Abstract	Exploiting series compensated transmission lines (SCTLs) to transfer bulk power produced by power electronics-interfaced renewable energy power plants (PE-REPPs) to the load canters has been accepted as an economical solution as well as the practical approach. However, SCTLs impose some difficulties on protective relays, especially conventional directional relaying which mainly employ phase angle difference between voltage and current signals to discriminate between forward and reverse faults and can jeopardize their operation, leading to a false trip and unjustified isolation of REPPs. To solve this problem, an efficient current-based directional relaying scheme is presented for the protection of SCTLs. In SCTLs due to the presence of series capacitance in the fault loop, voltage inversion (VI) and current inversion (CI) phenomena occur. The proposed directional relaying scheme can tackle CI and VI problems. Since the proposed method merely uses the phase angle of fault current, it can retain its proper operation during close-in faults where conventional directional relaying lose their proposer performance due to CCVT transients as well. Therefore, the resilience offered by SCTLs during the integration of REPPs will be attained. The performance of the proposed relaying scheme is evaluated under various operating conditions, and obtained results prove its efficiency.
Starting Page	2976
Ending Page	2987
Page Count	12
ISSN	17518687
Volume Number	14
e-ISSN	17518695
Issue Number	Issue 15, Aug (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-gtd/14/15
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2019.1143
Journal	IET Generation, Transmission & Distribution
Publisher Date	2020-05-12
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Bulk Power CCVT Transients CI Problem Conventional Directional Relaying Current Inversion Phenomena Current Signal Current-based Directional Relaying Scheme Fault Current Fault Loop Forward Fault Load Canters Phase Angle Power Electronics-interfaced Renewable Energy Power Plant Power Flow Direction Power Plant Power System Protection Power Transmission Fault Power Transmission Line Power Transmission Protection Power Transmission, Distribution And Supply Protective Relay Relay Protection Renewable Energy Source REPPs Reverse Fault SCTLs Series Capacitance Series Compensated Transmission Line Protection VI Problem Voltage Inversion Phenomena Voltage Signal
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

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