https://orcid.org/0000-0001-9149-0882
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Abstract
One of the most challenging events for distance relays is a transient phenomenon known as power swing, which can have damaging results to the system. The occurrence of power swing can cause the impedance trajectory to enter protective zones of distance relays that may lead them to the wrong operation. Malfunction of distance relays can create instability in power systems, and a large blackout may occur in these networks. The purpose of this paper is to introduce a new method based on using the mean value of sampled data from the current signal to recognize power swing from simultaneous faults. This method has been tested using DIgSILENT and MATLAB software on a two-bus network with parallel lines. The obtained results demonstrate that the proposed scheme is capable of detecting various types of power swings, including both unstable and stable power swing. The presented method in this paper also has an accurate operation to detect simultaneous symmetric faults. Besides, this method is planned for a protection system with a central controller using the IEC-61850 standard.
Additional information
Notes on contributors
Behrooz Taheri
Behrooz Taheri born in Qazvin, Iran, in 1993. He received the BS degree in electrical power engineering in 2015. He received his MSc degree in electrical engineering with high honors from Qazvin Islamic Azad University (QIAU), Qazvin, Iran, 2018. He is currently doing his PhD at QIAU. In 2015, he joined the Vebko Amirkabir Knowledge-Intensive Company, as a consultant of chief executive officer in the education and research field. He is a member of Iran’s National Elites Foundation since 2019. He has also been a member of young researchers and elite club since 2018. His research interests include power system protection, transients in power systems, microgrid, and smart grid. Email: [email protected]
Milad Faghihlou
Milad Faghihlou was born in Qazvin, Iran, in 1992. He received the BS degree in electrical control engineering from Imam Khomeini International University, Qazvin, Iran, in 2016. He received his MSc degree in electrical power engineering with high honors from Qazvin Islamic Azad University (QIAU), Qazvin, Iran, 2019. He is currently a research assistant at Vebko Amirkabir Knowledge-based Co. He has been a member of Young Researchers and Elite Club. His research interests include power system protection, transients in power systems, microgrid and smart grid. Email: [email protected]
Sirus Salehimehr
Sirus Salehimehr was born in Qazvin, Iran, in 1993. He received his MSc degree in power system engineering with high honors from Islamic Azad University(IAU), Qazvin, Iran, in 2019. He is currently a research assistant at Vebko Amirkabir Knowledge-based Co. His research interests include power system protection, transient in power system and smart grid. He has been a Member of Young Researchers and Elite Club, Qazvin Branch, Islamic Azad University, since 2018. Email: [email protected]
Farzad Razavi
Farzad Razavi received the BS, MS and PhD degrees in power engineering from the Amirkabir University of Technology, Tehran, Iran, in 1998, 2000, and 2007, respectively. He is the chief executive officer (CEO) of Vebko Amirkabir research and development company. His fields of interest include power system protection, power system transient, mathematics, and flexible ac transmission systems.