Voltage stability analysis using Lyapunov energy function

Kumar, Amresh; Bhagat, Sanjeev Kumar

doi:10.1109/icpden.2015.7084500

Cited by 8 publications

(1 citation statement)

References 21 publications

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“…The energy function is a powerful tool [23,24] that can be used to infer system stability conditions. Such ability motivates the usage of a novel energy function tool that identifies system areas according to its strength level, pointing out regions to be reinforced firstly during restoration.…”

Section: Introductionmentioning

confidence: 99%

Robustness Area Technique Developing Guidelines for Power System Restoration

et al. 2017

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This paper proposes a novel energy based technique called the Robustness Area (RA) technique that measures power system robustness levels, as a helper for planning Power System Restorations (PSRs). The motivation is on account of the latest blackouts in Brazil, where the local Independent System Operator (ISO) encountered difficulties related to circuit disconnections during the restoration. The technique identifies vulnerable and robust buses, pointing out system areas that should be firstly reinforced during PSR, in order to enhance system stability. A Brazilian power system restoration area is used to compare the guidelines adopted by the ISO with a more suitable new plan indicated by the RA tool. Active power and reactive power load margin and standing phase angle show the method efficiency as a result of a well balanced system configuration, enhancing the restoration performance. Time domain simulations for loop closures and severe events also show the positive impact that the proposed tool brings to PSRs.

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Section: Introductionmentioning

confidence: 99%