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RSS FeedsEnergies, Vol. 12, Pages 3865: Behaviour of Distribution Grids with the Highest PV Share Using the Volt/Var Control Chain Strategy (Energies)


12 october 2019 18:03:17

Energies, Vol. 12, Pages 3865: Behaviour of Distribution Grids with the Highest PV Share Using the Volt/Var Control Chain Strategy (Energies)

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. Digg Facebook Google StumbleUpon Twitter
30 viewsCategory: Biophysics, Biotechnology, Physics
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