Abstract

LOPEZ, Karol; PEREZ, Sandra  and  RODRIGUEZ, Luis. Optimal under voltage load shedding based on voltage stability index. Ing. Investig. [online]. 2016, vol.36, n.2, pp.43-50. ISSN 0120-5609.  https://doi.org/10.15446/ing.investig.v36n2.53773.

This paper presents a methodology for under voltage load shedding using a metaheuristic optimization technique and a stability criterion. Two strategies are proposed to find the minimal size and location of load to shed for the recovery of normal operation conditions. The first one is based on a classical criterion for the under voltage load shedding, identifying the load to disconnect by considering bus voltage level; the second includes a simplified voltage stability index SVSI, which identifies critical buses in the system. The proposed methodology is implemented in an IEEE 14 bus test system, considering a heavy loading condition with and without contingency to validate its efficiency.

Keywords : Load shedding; voltage stability; particle swarm optimization.

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