A convex optimization model to minimize energy losses in distribution systems

  • Carlos Quinatoa Caiza Universidad Técnica de Cotopaxi
  • Jimmy Xavier Toaza Universidad Técnica de Cotopaxi
  • Marco Anibal León
  • Carlos Pacheco Mena Universidad Técnica de Cotopaxi
  • Rommel Suárez Vinueza Universidad Técnica de Cotopaxi
Keywords: Convex optimization, Uniqueness, Semi-defined, Eigenvalue, Eigenvector, Trace, Electrical losses

Abstract

The integration of renewable energies into the distribution network has changed the operating paradigm of the conventional distribution electrical network, thus emerging the concept of smart grids (IR), where loads and distributed generation groups are managed in a coordinated manner. (GD) in order to maintain the electrical distribution system reliable, safe and with optimal operation. Due to this, it is necessary to have mathematical models of convex optimization, which guarantee the uniqueness and convergence of the solutions (global optimum), so a convex model of semi-definite programming (SD) was made, which due to its intrinsic mathematical properties helped to obtain a relaxed model that guarantees the solution of the algorithm. To counteract the model, the IEEE 37-node feeder test was used, thus achieving a solution in the total losses of the distribution network with an error of 3% compared to conventional methods, such as nonlinear programming (NLP) and programming. quadratic.

Downloads

Download data is not yet available.

References

F. Li et al., “Smart transmission grid: Vision and framework,” IEEE Trans. Smart Grid, vol. 1, no. 2, pp. 168–177, 2010.

J. Lavaei, S. Member, and S. H. Low, “Zero Duality Gap in Optimal Power Flow Problem,” IEEE Trans. Power Syst., vol. 27, no. 1, pp. 92–107, 2012.

L. H. Macedo, S. Member, J. F. Franco, and M. J. Rider, “Considering Energy Storage Devices,” pp. 1–12, 2015.

S. Huang, Q. Wu, J. Wang, and H. Zhao, “A Sufficient Condition on Convex Relaxation of AC Optimal Power Flow in Distribution Networks,” IEEE Trans. Power Syst., vol. 32, no. 2, pp. 1359–1368, 2017.

R. Madani, S. Sojoudi, and J. Lavaei, “Convex relaxation for optimal power flow problem: Mesh networks,” IEEE Trans. Power Syst., vol. 30, no. 1, pp. 199–211, 2015.

S. H. Low, “Convex relaxation of optimal power flow: A tutorial,” Proc. IREP Symp. Bulk Power Syst. Dyn. Control - IX Optim. Secur. Control Emerg. Power Grid, IREP 2013, pp. 1–15, 2013.

X. Chang, C. Gao, and S. Gao, “A VAR optimization model in distribution networks with precise linear modelling for OLTC of transformer,” 2017 IEEE Conf. Energy Internet Energy Syst. Integr. EI2 2017 - Proc., vol. 2018-Janua, no. 3, pp. 1–4, 2017.

M. A. Akbari et al., “Convex Models for Optimal Utility-Based Distributed Generation Allocation in Radial Distribution Systems,” IEEE Syst. J., vol. 12, no. 4, pp. 3497–3508, 2018.

S. H. Low, “Convex Relaxation of Optimal Power Flow - Part II: Exactness,” IEEE Trans. Control Netw. Syst., vol. 1, no. 2, pp. 177–189, 2014.

D. K. Molzahn and I. A. Hiskens, “Convex Relaxations of Optimal Power Flow Problems: An Illustrative Example,” IEEE Trans. Circuits Syst. I Regul. Pap., vol. 63, no. 5, pp. 650–660, 2016.

W. H. Kerting, “Radial distribution test feeders IEEE distribution planning working group report,” IEEE Trans. Power Syst., vol. 6, no. 3, pp. 975–985, 1991.

“GAMS - Download,” R.E. Rosenthal, GAMSGeneral Algebr. Model. Syst. GAMS Dev. Washington, DC, USA.

A. Garces, “A quadratic approximation for the optimal power flow in power distribution systems,” Electr. Power Syst. Res., vol. 130, pp. 222–229, 2016.

Published
2021-08-19
How to Cite
Quinatoa CaizaC., ToazaJ. X., LeónM. A., Pacheco MenaC., & Suárez VinuezaR. (2021). A convex optimization model to minimize energy losses in distribution systems. Ciencias De La Ingeniería Y Aplicadas, 5(2), 114-124. Retrieved from http://investigacion.utc.edu.ec/index.php/ciya/article/view/376
Section
Artículo de investigación

Most read articles by the same author(s)