open access publication

Article, 2024

Voltage stability improvement in distribution networks by using soft open points

International Journal of Electrical Power & Energy Systems, ISSN 0142-0615, 1879-3517, Volume 155, Page 109582, 10.1016/j.ijepes.2023.109582

Contributors

Mardanimajd, Kambiz [1] Karimi, Shahram 0000-0002-6649-5646 (Corresponding author) [1] Anvari-Moghaddam, Amjad 0000-0002-5505-3252 [2]

Affiliations

  1. [1] Razi University
  2. [NORA names: Iran; Asia, Middle East];
  3. [2] Aalborg University
  4. [NORA names: AAU Aalborg University; University; Denmark; Europe, EU; Nordic; OECD]

Abstract

The integration of renewable energies is gaining popularity as a result of their sustainability and green nature. On the other hand, aged power infrastructure not only has various issues in accommodating such resources, but also poses risks to the distribution network operation. To this aim, soft open points (SOPs) can be used for supporting distribution networks. Although SOP has been used for different purposes, the potential of SOP for increasing the voltage stability entails further study. As a result, an efficient strategy for the operation of SOPs in distribution networks is developed in this study, which considers the voltage stability index as an objective function. The developed framework is optimized using the particle swarm optimization method, which takes network, resource, and other technical limitations into account. The uncertainties of loads and renewable energies are also modeled through the scenario-based method. The suggested approach is tested on an IEEE standard distribution network under two conditions, comprising the normal and fault situations. After analyzing the various case studies and experiments, the effectiveness and applicability are verified accordingly. The findings show that SOP has a significant impact on improving voltage stability of distribution networks, throughout the normal and fault conditions.

Keywords

IEEE, IEEE standard distribution network, aging power infrastructure, applications, case study, cases, conditions, distribution, distribution network, distribution network operators, effect, efficient strategy, energy, experiments, fault, fault conditions, fault situations, findings, framework, function, green nature, impact, improve voltage stability, improvement, index, infrastructure, integration, integration of renewable energy, issues, limitations, load, method, nature, network, network operators, objective function, open point, operation, optimization method, particle swarm optimization method, particles, point, potential, power infrastructure, purposes, renewable energy, resources, results, risk, scenario-based method, situation, soft open point, stability, stability improvement, stability index, stability of distribution network, standard distribution network, strategies, study, sustainability, swarm optimization method, technical limitations, uncertainty, uncertainty of load, voltage, voltage stability, voltage stability improvement, voltage stability index, voltage stability of distribution network

Data Provider: Digital Science