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Behaviour of Distribution Grids with the Highest PV Share Using the Volt/Var Control Chain Strategy

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  • Daniel-Leon Schultis

    (TU Wien—Institute of Energy Systems and Electrical Drives, 1040 Vienna, Austria)

  • Albana Ilo

    (TU Wien—Institute of Energy Systems and Electrical Drives, 1040 Vienna, Austria)

Abstract

The large-scale integration of rooftop PVs stalls due to the voltage limit violations they provoke, the uncontrolled reactive power flow in the superordinate grids and the information and communications technology (ICT) related challenges that arise in solving the voltage limit violation problem. This paper attempts to solve these issues using the LINK -based holistic architecture, which takes into account the behaviour of the entire power system, including customer plants. It focuses on the analysis of the behaviour of distribution grids with the highest PV share, leading to the determination of the structure of the Volt/var control chain. The voltage limit violations in low voltage grid and the ICT challenge are solved by using concentrated reactive devices at the end of low voltage feeders. Q -Autarkic customer plants relieve grids from the load-related reactive power. The optimal arrangement of the compensation devices is determined by a series of simulations. They are conducted in a common model of medium and low voltage grids. Results show that the best performance is achieved by placing compensation devices at the secondary side of the supplying transformer. The Volt/var control chain consists of two Volt/var secondary controls; one at medium voltage level (which also controls the TSO-DSO reactive power exchange), the other at the customer plant level.

Suggested Citation

  • Daniel-Leon Schultis & Albana Ilo, 2019. "Behaviour of Distribution Grids with the Highest PV Share Using the Volt/Var Control Chain Strategy," Energies, MDPI, vol. 12(20), pages 1-23, October.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:20:p:3865-:d:275769
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    References listed on IDEAS

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    1. Daniel-Leon Schultis, 2019. "Comparison of Local Volt/var Control Strategies for PV Hosting Capacity Enhancement of Low Voltage Feeders," Energies, MDPI, vol. 12(8), pages 1-27, April.
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    Cited by:

    1. Toni Cantero Gubert & Alba Colet & Lluc Canals Casals & Cristina Corchero & José Luís Domínguez-García & Amelia Alvarez de Sotomayor & William Martin & Yves Stauffer & Pierre-Jean Alet, 2021. "Adaptive Volt-Var Control Algorithm to Grid Strength and PV Inverter Characteristics," Sustainability, MDPI, vol. 13(8), pages 1-17, April.
    2. Daniel-Leon Schultis & Albana Ilo, 2021. "Effect of Individual Volt/var Control Strategies in LINK -Based Smart Grids with a High Photovoltaic Share," Energies, MDPI, vol. 14(18), pages 1-31, September.
    3. Albana ILO, 2019. "Design of the Smart Grid Architecture According to Fractal Principles and the Basics of Corresponding Market Structure," Energies, MDPI, vol. 12(21), pages 1-24, October.

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