Commenced in January 2007
Frequency: Monthly
Edition: International
Paper Count: 31435
Study on the Addition of Solar Generating and Energy Storage Units to a Power Distribution System

Authors: T. Costa, D. Narvaez, K. Melo, M. Villalva


Installation of micro-generators based on renewable energy in power distribution system has increased in recent years, with the main renewable sources being solar and wind. Due to the intermittent nature of renewable energy sources, such micro-generators produce time-varying energy which does not correspond at certain times of the day to the peak energy consumption of end users. For this reason, the use of energy storage units next to the grid contributes to the proper leveling of the buses’ voltage level according to Brazilian energy quality standards. In this work, the effect of the addition of a photovoltaic solar generator and a store of energy in the busbar voltages of an electric system is analyzed. The consumption profile is defined as the average hourly use of appliances in a common residence, and the generation profile is defined as a function of the solar irradiation available in a locality. The power summation method is validated with analytical calculation and is used to calculate the modules and angles of the voltages in the buses of an electrical system based on the IEEE standard, at each hour of the day and with defined load and generation profiles. The results show that bus 5 presents the worst voltage level at the power consumption peaks and stabilizes at the appropriate range with the inclusion of the energy storage during the night time period. Solar generator maintains improvement of the voltage level during the period when it receives solar irradiation, having peaks of production during the 12 pm (without exceeding the appropriate maximum levels of tension).

Keywords: Energy storage, power distribution system, solar generator, voltage level.

Digital Object Identifier (DOI):

Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 440


[1] Lima, Diana R. U. Desenvolvimento de Modelos de Redes de Baixa Tensão para Estudos de Fluxo de Potência. Universidade de São Paulo. São Carlos, 2015.
[2] Afifi, Sara N. Impact of Hybrid Distributed Generation Allocation on Short Circuit Currents in Distribution Systems. Brunel University London-Brunel Institute of Power Systems. London, 2017.
[3] Manditereza, P. T. e Bansal, R. "Renewable distributed generation: The hidden challenges – A review from the protection perspective," Renewable and Sustainable Energy Reviews, vol. 58, pp. 1457-1465, 5, 2016.
[4] Walling, R. A. et al. "Summary of Distributed Resources Impact on Power Delivery Systems," IEEE Transactions on Power Delivery, vol. 23, pp. 1636-1644, 2008.
[5] Lopes, J. A. P. et al. "Integrating distributed generation into electric power systems: A review of drivers, challenges and opportunities," Electr. Power Syst. Res., vol. 77, pp. 1189-1203, 7, 2007.
[6] Kaur, G. e Vaziri, M. Y. "Effects of distributed generation (DG) interconnections on protection of distribution feeders," in 2006 IEEE Power Engineering Society General Meeting, 2006, pp. 8 pp.
[7] Monticelli, A. (1983). Fluxo de Carga em Redes de Energia Elétrica. Edgar Blucher, Rio de Janeiro – RJ.
[8] Sarabia, A. F. Impact of distributed generation on distribution system. Aalborg University. Denmark, 2011.
[9] Procedimentos de Distribuição de Energia Elétrica no Sistema Elétrico Nacional (PRODIST) – Módulo 8 – Qualidade da Energia Elétrica Revisão 6, ANEEL, 76pp., 2014.
[10] Kersting, W. H. (1991). Radial Distribution Test Feeders, IEEE Trans. Power Systems, vol. 6, pp. 975-985.
[11] C. G. Renato (1990). New Method for the Analysis of Distribution Networks, IEEE Trans. Power Delivery, vol. 5, pp. 391-396.
[12] Das, D.; Nagi, H. S. and Kothari, D. P. (1994) Novel Method for Solving Radial Distribution Networks, in IEEE Gener. Transm. Distrib., pp. 291-298.
[13] Souza, B. A.; H. D. M. Braz; Albuquerque, J. M. C.; Gutterres, J. G. G. (2006). Fluxo de Carga em Sistemas de Distribuição Radiais com Geração Distribuída: Método da Soma de Potência Modificado. IEEE Latin America Transactions, vol. 4, no. 3.