Advanced local voltage control through polynomial P-var functions

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Reactive power control of inverter-based equipment, such as photovoltaic units or electric vehicles, is one way to address increasing voltage violations in distribution grids. Local droop control strategies have been rolled out in several European countries. In this work, we present an advanced method to define polynomial P-Var curves. A stochastic optimal power flow problem is solved, which co-optimizes both voltage deviations and distribution grid losses, and incorporates the polynomial coefficients as decision variables. The proposed method is applied to a real Danish low voltage feeder, leading to more robust solutions.

Original languageEnglish
Title of host publicationProceedings of 2019 IEEE Milan PowerTech
Number of pages6
Publication date1 Jun 2019
Article number8810510
ISBN (Electronic)9781538647226
Publication statusPublished - 1 Jun 2019
Event2019 IEEE Milan PowerTech, PowerTech 2019 - Milan, Italy
Duration: 23 Jun 201927 Jun 2019


Conference2019 IEEE Milan PowerTech, PowerTech 2019
Series2019 IEEE Milan PowerTech, PowerTech 2019


  • Optimal power flow
  • Power distribution
  • Power system planning
  • Reactive power control
  • Voltage control


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