Adaptive distance relay setting for parallel transmission network connecting wind farms and UPFC. (February 2015)

• Record Type: Journal Article
• Authors: Dubey, Rahul; Samantaray, S.R.; Panigrahi, B.K; Venkoparao, G.V.
• Is Part Of: International journal of electrical power & energy systems. Volume 65(2015:Feb.)
• Page Start: 113
• Page End: 123
• Publication Date: 2015-02
• Subjects: Adaptive relay setting -- Distance relaying -- Parallel lines -- Transmission line protection -- Wind-farms -- UPFC; Electrical engineering -- Periodicals; Electric power systems -- Periodicals; Électrotechnique -- Périodiques; Réseaux électriques (Énergie) -- Périodiques; Electric power systems; Electrical engineering; Periodicals; 621.3
• DOI: 10.1016/j.ijepes.2014.09.033
• Languages: English
• ISSNs: 0142-0615

Abstract

Highlights: Apparent impedance calculation for parallel lines with UPFC and wind-farm is proposed. Impact of mutual coupling on the relay performance is investigated. Impact of UPFC and wind farms on the relay setting is investigated. Provides reliable relaying measure considering wide variations in fault situations. Abstract: The paper presents an adaptive distance relay setting for parallel transmission network connecting wind farms. The ideal trip characteristics of distance relay is greatly affected in presence of mutual coupling of parallel transmission lines as the apparent impedance is significantly affected. Similarly, the reach setting of the relay for the lines connecting wind farms is significantly affected as the relay end voltage fluctuates continuously. Thus, the proposed study focuses on developing adaptive relay setting for parallel transmission network including wide variations in operating conditions of wind farms and effect of mutual coupling, together. Further, the performance of the proposed adaptive relay setting for parallel lines including Unified Power Flow Controller (UPFC) indicates the potential ability of the proposed analytical approach in handling distance relaying in transmission system.