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Open AccessArticle

Boundary Detection and Enhancement Strategy for Power System Bus Bar Stabilization—Investigation under Fault Conditions for Islanding Operation

1
Institute of Power Engineering, Department of Electrical Power Engineering, Universiti Tenaga Nasional, Kajang 43000, Malaysia
2
Department of Energy Technology, Aalborg University, 6700 Esbjerg, Denmark
3
Centre for Reliable Power Electronics, Department of Energy Technology, Aalborg University, 9000 Aalborg, Denmark
4
Department of Energy Technology, Aalborg University, 9000 Aalborg, Denmark
*
Author to whom correspondence should be addressed.
Energies 2018, 11(4), 889; https://doi.org/10.3390/en11040889
Received: 9 December 2017 / Revised: 31 December 2017 / Accepted: 4 January 2018 / Published: 11 April 2018
Distribution systems can form islands when faults occur. Each island represents a subsection with variable boundaries subject to the location of fault(s) in the system. A subsection with variable boundaries is referred to as an island in this paper. For operation in autonomous mode, it is imperative to detect the island configurations and stabilize these subsections. This paper presents a novel scheme for the detection of island boundaries and stabilizing the system during autonomous operation. In the first stage, a boundary detection method is proposed to detect the configuration of the island. In the second stage, a dynamic voltage sensitivity factor (DVSF) is proposed to assess the dynamic performance of the system. In the third stage, a wide area load shedding program is adopted based on DVSF to shed the load in weak bus-bars and stabilize the system. The proposed scheme is validated and tested on a generic 18-bus system using a combination of EMTDC/PSCAD and MATLAB software’s. View Full-Text
Keywords: islanding; load management; power distribution; voltage fluctuations islanding; load management; power distribution; voltage fluctuations
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Pouryekta, A.; Ramachandaramurthy, V.K.; Padmanaban, S.; Blaabjerg, F.; Guerrero, J.M. Boundary Detection and Enhancement Strategy for Power System Bus Bar Stabilization—Investigation under Fault Conditions for Islanding Operation. Energies 2018, 11, 889.

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