Theoretical analysis of voltage instability conditions in distribution networks

Triştiu, Ion; Iantoc, Andreea; Postovei, Danut Adrian; Bulac, Constantin; Arhip, Madalina

doi:10.1109/upec.2019.8893520

Cited by 2 publications

(2 citation statements)

References 11 publications

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“…Stability in terms of voltage and frequency synchronization in the network are the key issues [39]. Conventional power plants are connected through transmission or sub-transmission channels for bidirectional power transfer according to the IEEE standard 1547-2018 for interconnection and interoperability of DERs with associated power system interfaces [128][129][130][131]. DGRs are connected via distribution channels and power is delivered to the consumer directly [132,133].…”

Section: Stability Of Microgridsmentioning

confidence: 99%

Enhancing Microgrid Stability and Energy Management: Techniques, Challenges, and Future Directions

Safder,

Sanjari,

Hamza

et al. 2023

Energies

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Microgrid technology offers a new practical approach to harnessing the benefits of distributed energy resources in grid-connected and island environments. There are several significant advantages associated with this technology, including cost-effectiveness, reliability, safety, and improved energy efficiency. However, the adoption of renewable energy generation and electric vehicles in modern microgrids has led to issues related to stability, energy management, and protection. This paper aims to discuss and analyze the latest techniques developed to address these issues, with an emphasis on microgrid stability and energy management schemes based on both traditional and distinct approaches. A comprehensive analysis of various schemes, potential issues, and challenges is conducted, along with an identification of research gaps and suggestions for future microgrid development. This paper provides an overview of the current state of the field and proposes potential areas of future research.

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Section: Stability Of Microgridsmentioning

confidence: 99%

Enhancing Microgrid Stability and Energy Management: Techniques, Challenges, and Future Directions

Safder,

Sanjari,

Hamza

et al. 2023

Energies

View full text Add to dashboard Cite

show abstract

“…This index showed a behavior highly linear with a load increase. In [13], a theoretical voltage stability analysis for AC distribution networks was presented. This analysis determined some essential practical points such as static power reserve until the voltage instability phenomenon, static voltage stability limit, and maximum active power.…”

Section: Introductionmentioning

confidence: 99%

Voltage Stability Analysis in Medium-Voltage Distribution Networks Using a Second-Order Cone Approximation

et al. 2020

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This paper addresses the voltage stability margin calculation in medium-voltage distribution networks in the context of exact mathematical modeling. This margin calculation is performed with a second-order cone (SOCP) reformulation of the classical nonlinear non-convex optimal power flow problems. The main idea around the SOCP approximation is to guarantee the global optimal solution via convex optimization, considering as the objective function the λ-coefficient associated with the maximum possible increment of the load consumption at all the nodes. Different simulation cases are considered in one test feeder, described as follows: (i) the distribution network without penetration of distributed generation; (ii) the distribution network with penetration of distributed generation; and (iii) the distribution grid with capacitive compensation. Numerical results in the test system demonstrated the effectiveness of the proposed SOCP approximation to determine the λ-coefficient. In addition, the proposed approximation is compared with nonlinear tools available in the literature. All the simulations are carried out in the MATLAB software with the CVX package and the Gurobi solver.

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Theoretical analysis of voltage instability conditions in distribution networks

Cited by 2 publications

References 11 publications

Enhancing Microgrid Stability and Energy Management: Techniques, Challenges, and Future Directions

Enhancing Microgrid Stability and Energy Management: Techniques, Challenges, and Future Directions

Voltage Stability Analysis in Medium-Voltage Distribution Networks Using a Second-Order Cone Approximation

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