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A Faulty Line Detection Technique for Series Compensated Line using Synchrophasor Data
https://orcid.org/http://orcid.org/0000-0002-1848-6761
Series compensation lines are developed to transmit huge quantum of electric power to long distant areas. Series compensation imposes challenges to different protection schemes including distance relay. The level of series compensation may vary according to the system conditions, sometimes series capacitors may be by-passed during any disturbance in the system. Information of the compensation level may not be available to the remote end and adjacent line relays hence those relays are prone to maloperation. Synchronized phasor data of long-distance locations is an asset to the protection relays for taking reliable decisions. In this paper, synchrophasor signals of PMU buses are used to identify the faulty line for any fault in a network with series compensated lines. First, voltage of non-PMU buses is computed utilizing synchrophasor data of PMU buses and level of series compensation. The differential voltage of non-PMU bus is computed to identify the fault in the network. Further, the faulty section in the network is identified from the sign of differential voltage to derive a reliable protection decision and to isolate the faulty section. The proposed method is evaluated using nine-bus power system simulated in PSCAD for different faults and found accurate.
A Faulty Line Detection Technique for Series Compensated Line using Synchrophasor Data
https://orcid.org/http://orcid.org/0000-0002-1848-6761
Series compensation lines are developed to transmit huge quantum of electric power to long distant areas. Series compensation imposes challenges to different protection schemes including distance relay. The level of series compensation may vary according to the system conditions, sometimes series capacitors may be by-passed during any disturbance in the system. Information of the compensation level may not be available to the remote end and adjacent line relays hence those relays are prone to maloperation. Synchronized phasor data of long-distance locations is an asset to the protection relays for taking reliable decisions. In this paper, synchrophasor signals of PMU buses are used to identify the faulty line for any fault in a network with series compensated lines. First, voltage of non-PMU buses is computed utilizing synchrophasor data of PMU buses and level of series compensation. The differential voltage of non-PMU bus is computed to identify the fault in the network. Further, the faulty section in the network is identified from the sign of differential voltage to derive a reliable protection decision and to isolate the faulty section. The proposed method is evaluated using nine-bus power system simulated in PSCAD for different faults and found accurate.
A Faulty Line Detection Technique for Series Compensated Line using Synchrophasor Data
https://orcid.org/http://orcid.org/0000-0002-1848-6761
Series compensation lines are developed to transmit huge quantum of electric power to long distant areas. Series compensation imposes challenges to different protection schemes including distance relay. The level of series compensation may vary according to the system conditions, sometimes series capacitors may be by-passed during any disturbance in the system. Information of the compensation level may not be available to the remote end and adjacent line relays hence those relays are prone to maloperation. Synchronized phasor data of long-distance locations is an asset to the protection relays for taking reliable decisions. In this paper, synchrophasor signals of PMU buses are used to identify the faulty line for any fault in a network with series compensated lines. First, voltage of non-PMU buses is computed utilizing synchrophasor data of PMU buses and level of series compensation. The differential voltage of non-PMU bus is computed to identify the fault in the network. Further, the faulty section in the network is identified from the sign of differential voltage to derive a reliable protection decision and to isolate the faulty section. The proposed method is evaluated using nine-bus power system simulated in PSCAD for different faults and found accurate.
A Faulty Line Detection Technique for Series Compensated Line using Synchrophasor Data
J. Inst. Eng. India Ser. B
Rao, A. V. Koteswara (author) / Soni, K. M. (author) / Sinha, Sanjay Kumar (author) / Nasiruddin, Ibraheem (author)
Journal of The Institution of Engineers (India): Series B ; 103 ; 1407-1413
2022-10-01
7 pages
Article (Journal)
Electronic Resource
English
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