Voltage Regulation Planning for Distribution Networks Using Multi-Scenario Three-Phase Optimal Power Flow

Antonio Rubens Baran Junior, Thelma S. Piazza Fernandes and Ricardo Augusto Borba
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Antonio Rubens Baran Junior: Electrical Engineering Department, Federal University of Paraná (UFPR), Curitiba 81531-980, Brazil
Thelma S. Piazza Fernandes: Electrical Engineering Department, Federal University of Paraná (UFPR), Curitiba 81531-980, Brazil
Ricardo Augusto Borba: Electrical Engineering Department, Federal University of Paraná (UFPR), Curitiba 81531-980, Brazil

Energies, 2019, vol. 13, issue 1, 1-21

Abstract: Active distribution networks must operate properly for different scenarios of load levels and distributed generation. An important operational requirement is to maintain the voltage profile within standard operating limits. To do this, this paper proposed a Multi-Scenario Three-Phase Optimal Power Flow (MTOPF) that plans the voltage regulation of unbalance and active distribution networks considering typical scenarios of operation. This MTOPF finds viable operation points by the optimal adjustments of voltage regulator taps and distribution transformer taps. The differentiating characteristic of this formulation is that in addition to the traditional tuning of voltage regulator taps of an active network applied for just one scenario of load and generation, it also performs the optimal adjustment of distribution transformer taps, which, once fixed, is able to meet the voltage limits of diverse operating situations. The optimization problem was solved by the primal-dual interior-point method and the formulation was tested using the IEEE 123-bus system.

Keywords: Three-phase optimal power flow; voltage regulation; distributed generation; distribution transformer taps (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
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