Optimal planning of PV inverter in the presence of capacitor bank in medium-voltage distribution networks

Abdelfatah Ali*, David Raisz, Karar Mahmoud

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Abstract

As the penetration level of the photovoltaic (PV) system increases over the coming decades, reverse power flows on the distribution feeder will happen and the associated voltage rise might lead to violations of voltage limits. The severity of the voltage regulation problem depends on the relative size and location of PV system, loads, and the distribution feeder topology. This paper proposes an approach to solve the voltage rise problem associated with PV system and to improve the total voltage deviation by optimally increasing the capacity of the PV inverter over the capacity of the PV modules in the presence of capacitor banks. An optimization model is constructed to calculate the optimal inverter capacity with minimizing the cost of PV inverter as well as the total voltage deviation on the distribution network. The overall system constraints are considered in the optimization model. The proposed approach is tested using the IEEE 119-node distribution network. The effectiveness of the proposed approach is demonstrated by calculating the optimal capacity of the PV inverter for mitigating the voltage rise problem and reducing the total voltage deviation.

Original languageEnglish
Title of host publicationProceedings of the18th International Conference on Harmonics and Quality of Power, ICHQP 2018
Number of pages5
ISBN (Electronic)9781538605172
DOIs
Publication statusPublished - 8 Jun 2018
MoE publication typeA4 Article in a conference publication
EventInternational Conference on Harmonics and Quality of Power - Ljubljana, Slovenia
Duration: 13 May 201816 May 2018
Conference number: 18

Conference

ConferenceInternational Conference on Harmonics and Quality of Power
Abbreviated titleICHQP
CountrySlovenia
CityLjubljana
Period13/05/201816/05/2018

Keywords

  • Capacitor bank
  • Distribution networks
  • Optimal inverter capacity
  • Photovoltaic (PV)
  • Reactive power capability
  • Voltage rise

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