A Novel Three-Phase Compact Saturated-Core Fault Current Limiter

• Published in: IEEE transactions on magnetics Vol. 53; no. 11; pp. 1 - 4
• Main Authors: Jiaxin Yuan, Yongheng Zhong, Shuhan Liao, Liangliang Wei, Yanhui Gao, Muramatsu, Kazuhiro, Jiabin Jia, Baichao Chen, Liangjun Bai
• Format: Journal Article
• Language: English
• Published: New York IEEE 01-11-2017; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Circuit faults; Coils; Commercialization; Common core; Current limiters; Energy consumption; Fault current limiters; Fault currents; Ferromagnetic materials; Finite element method; finite-element analysis (FEA); Impedance; Magnetic cores; Magnetism; Nonlinear programming; permanent magnet (PM); saturated-core fault current limiter (SFCL); three-phase
• ISSN: 0018-9464; 1941-0069
• DOI: 10.1109/TMAG.2017.2704662

The application of fault current limiter is an effective method to limit fault current. The saturated-core fault current limiter (SFCL) is one of the promising devices. However, its commercialization is limited by the high demands for the ferromagnetic material and the dc source generating magneto motive force. This paper proposes a novel three-phase compact SFCL (CSFCL) in which a common core and a permanent magnet are used to solve the mentioned challenges. The common core can significantly reduce the amount of required ferromagnetic material. The basic operating principle of CSFCL is introduced based on the analysis of the CSFCL's magnetic circuit and equivalent electrical circuit. Finite-element analysis (FEA) simulations were performed by ANSOFT to validate the effectiveness of the CSFCL's fault clipping performance.