Controllable-Dual Bridge Fault Current Limiter for Interconnection Micro-Grids

Hossein Shahbabaei Kartijkolaie, Kuo-Hsien Hsia, Saleh Mobayen, Mehdi Firouzi and Mohammadreza Shafiee
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Hossein Shahbabaei Kartijkolaie: Golestan Provinace Distribution Electrical Company, Gorgan 517212, Iran
Kuo-Hsien Hsia: Bachelor Program in Interdisciplinary Studies, National Yunlin University of Science and Technology, 123 University Road, Section 3, Douliou, Yunlin 64002, Taiwan
Saleh Mobayen: Future Technology Research Center, National Yunlin University of Science and Technology, 123 University Road, Section 3, Douliou, Yunlin 64002, Taiwan
Mehdi Firouzi: Department of Electrical Engineering, Abhar Branch, Islamic Azad University, Abhar 1584743311, Iran
Mohammadreza Shafiee: Department of Electrical and Computer Engineering, University of Semnan, Semnan 3535168641, Iran

Energies, 2021, vol. 14, issue 4, 1-12

Abstract: Different types of fault current limiters (FCLs) have been developed and designed based on non-superconducting DC reactors (NSDRs). This paper proposes a controllable dual-bridge FCL (CDBFCL) based on the NSDR for use in an AC-type micro-grid. It includes a NSDR and two series and shunt bridge circuits. The series bridge is based on diode semiconductor switches and is coupled in series with the line via a transformer. The shunt bridge is based on thyristor semiconductor switches and is coupled in parallel with the line. The shunt bridge provides a variable voltage source. It compensates for the DC side voltage drop due to NSDR resistance and semiconductor switches during normal operating condition. In addition, by controlling the shunt bridge firing angle, it produces a controllable DC voltage, which can control the fault current amplitude during a fault. The structure, principle operating work, and control system of the proposed CDBFCL are presented. The CDBFCL performance is studied analytically and through simulation by the PSCAD/EMTDC software. In addition, the simulation results are compared with those obtained experimentally from a prototype CDBFCL and show a close correlation.

Keywords: controllable dual-bridge fault current limiter (CDBFCL); micro-grid (MG); controllable voltage source (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
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