Simulation of Soft Open Point under Random Character of Load
DOI:
https://doi.org/10.31649/1997-9266-2024-175-4-60-65Keywords:
electric network, optimization of active and reactive power flows, active power lossesAbstract
The article presents the results of a study of the efficiency of Soft Open Point (SOP) usage— modern power electronic devices that are integrated into the distribution networks of distribution system operators. SOPs are installed between adjacent feeders instead of traditional normally open disconnectors and are able to perform a number of important functions, such as redistribution of active power between feeders, compensation of reactive power, automatic control of the network structure, which, in turn, leads to increased reliability of electricity supply to consumers, reduction of electricity losses and stabilization of the voltage level in the network.
The article proposes a Soft Open Point (SOP) control method for active and reactive power. The control is based on the criterion of the minimum loss of active power, for the implementation of which the indirectly related drops of complex voltages in the connection nodes of the device are used, which enables to improve the accuracy of control and minimize the loss of active power.
The results of Soft Open Point modeling in distribution electric networks with a random nature of the load are given. In the course of the study, SOP control algorithms were simulated for active and reactive power for different types of load. In particular, simulations showed that when installing SOP on adjacent feeders, it is possible to achieve a significant reduction in active power losses and stabilize the voltage in the load nodes. The maximum value of voltage losses in the relatively small 4 km long feeders was reduced from 0.16 kV to 0.12 kV by the SOP optimization, and the average power losses were reduced from 5.1 kW to 2.5 kW.
The presented results prove the effectiveness of the implementation of SOP for the optimization of distribution electric networks of distribution systems operators in conditions of random nature of loads.
References
C. Wang, J. Wu, J. Ekanayake, and N. Jenkins, Smart Electricity Distribution Networks. CRC Press, 2017, 416 p.
J. M. Bloemink , and T. C. Green , “Benefits of Distribution-Level Power Electronics for Supporting Distributed Generation Growth,” IEEE Transactions on Power Delivery, vol. 28, no. 2, pp. 911-919, April. 2013.
W. Cao, J. Wu, N. Jenkins, C. Wang, and T. Green, “Operating principle of Soft Open Points for Electrical Distribution Network Operation,” Applied Energy, no. 164, pp. 245-257, 2016.
W. Cao, J. Wu, N. Jenkins, C. Wang, and T. Green, “Benefits Analysis of Soft Open Points for Electrical Distribution Network Operation,” Applied Energy, no. 165, pp. 36-47, 2016.
Q. Qi, J. Wu, and C. Long, “Multi-objective Operation Optimization of an Electrical Distribution Network with Soft Open Point,” Applied Energy, no. 208, pp. 734-744, 2017.
V. Popov, O. Yarmoliuk, V. Tkachenko, I. Frolov, V. Natalych, “Feature of Optimal Network Reconfiguration Problem Statement in Distribution Systems with Local Energy Sources,” Вісник КрНУ імені Михайла Остроградського, вип. 4 (135), c. 53-62, 2022.
A. Farzamnia, S. Marjani, S. Galvani and K. T. T. Kin, “Optimal Allocation of Soft Open Point Devices in Renewable Energy Integrated Distribution Systems,” IEEE Access. vol. 10, 2022.
Alwash Shamam, Ibrahim Sarmad, and M. Abed Azher, “Distribution System Reconfiguration with Soft Open Point for Power Loss Reduction in Distribution Systems Based on Hybrid Water Cycle Algorithm,” Energies 2023, 16, 199. 22 p.
Ferry A. Viawan, “Voltage Control and Voltage Stability of Power Distribution Systems in the Presence of Distributed Generation.” in Thesis for the Degree of Doctor of Philosophy, Chalmers University of Technology. Göteborg, Sweden, 2008, 157 р.
О. С. Яндульський , Г. О. Труніна, А. Б. Нестерко, Регулювання напруги в розподільних електричних мережах з відновлюваними джерелами енергії , моногр. Київ, УКраїна: КПІ ім. Ігоря Сікорського, 2021, 191 с.
X. P. Zhang, C. Rehtanz, B. Pal, Flexible AC Transmission Systems: Modelling and Control, 2nd edition, Berlin: Springer Verlag, 2012, 552 р.
Ю. В. Лобода, і Р. О. Слободян, «Застосування Soft Open Point для оптимізації втрат електроенергії в розподільних електричних мережах,» Вісник Хмельницького національного університету. Технічні науки, № 2, с. 166-170, 2024.
М. Й. Бурбело, і Р. О. Слободян, «Стратегія керування джерелами реактивної потужності в розподільних електричних мережах для оптимізації втрат електроенергії,» Вісник Кременчуцького національного університету імені Михайла Остроградського, № 1, с. 209-214, 2024.
Downloads
-
pdf (Українська)
Downloads: 23
Published
How to Cite
Issue
Section
License
This work is licensed under a Creative Commons Attribution 4.0 International License.
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgment of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
