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Symmetrical Fault-Swing Discrimination Algorithm for Transmission system
https://orcid.org/http://orcid.org/0000-0001-8643-4405
A method is proposed in this paper to detect and discriminate symmetrical fault during power swing. The method exploits the local end current information to perform the task. The algorithm will be executed in parallel with conventional distance relay algorithm. Negative and zero sequence components reveal the occurrence of unsymmetrical fault, but detection of symmetrical fault and its discrimination from other system balance phenomenon such as power swing is a difficult task. However, with the help of conventional MHO relay characteristics and proposed method which uses average rate of change of current (ARCC), detection of symmetrical fault and the exact discrimination from swing situation is possible. The average rate of change of current (ARCC) is used as a detection index in the proposed work. The proposed scheme is extensively tested on different power system models, and results are provided for different swing, fault, CT saturation and the presence of noise cases. The responses under power system stressed conditions are also investigated and discussed. The obtained results indicate that the suggested algorithm is able to maintain the balance between dependability and security aspects of the protection logic.
Symmetrical Fault-Swing Discrimination Algorithm for Transmission system
https://orcid.org/http://orcid.org/0000-0001-8643-4405
A method is proposed in this paper to detect and discriminate symmetrical fault during power swing. The method exploits the local end current information to perform the task. The algorithm will be executed in parallel with conventional distance relay algorithm. Negative and zero sequence components reveal the occurrence of unsymmetrical fault, but detection of symmetrical fault and its discrimination from other system balance phenomenon such as power swing is a difficult task. However, with the help of conventional MHO relay characteristics and proposed method which uses average rate of change of current (ARCC), detection of symmetrical fault and the exact discrimination from swing situation is possible. The average rate of change of current (ARCC) is used as a detection index in the proposed work. The proposed scheme is extensively tested on different power system models, and results are provided for different swing, fault, CT saturation and the presence of noise cases. The responses under power system stressed conditions are also investigated and discussed. The obtained results indicate that the suggested algorithm is able to maintain the balance between dependability and security aspects of the protection logic.
Symmetrical Fault-Swing Discrimination Algorithm for Transmission system
https://orcid.org/http://orcid.org/0000-0001-8643-4405
A method is proposed in this paper to detect and discriminate symmetrical fault during power swing. The method exploits the local end current information to perform the task. The algorithm will be executed in parallel with conventional distance relay algorithm. Negative and zero sequence components reveal the occurrence of unsymmetrical fault, but detection of symmetrical fault and its discrimination from other system balance phenomenon such as power swing is a difficult task. However, with the help of conventional MHO relay characteristics and proposed method which uses average rate of change of current (ARCC), detection of symmetrical fault and the exact discrimination from swing situation is possible. The average rate of change of current (ARCC) is used as a detection index in the proposed work. The proposed scheme is extensively tested on different power system models, and results are provided for different swing, fault, CT saturation and the presence of noise cases. The responses under power system stressed conditions are also investigated and discussed. The obtained results indicate that the suggested algorithm is able to maintain the balance between dependability and security aspects of the protection logic.
Symmetrical Fault-Swing Discrimination Algorithm for Transmission system
J. Inst. Eng. India Ser. B
Andanapalli, Kumarraja (author) / Biswal, Monalisa (author)
Journal of The Institution of Engineers (India): Series B ; 102 ; 1033-1048
2021-10-01
16 pages
Article (Journal)
Electronic Resource
English
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