Active Distribution Grids Providing Voltage Support: The Swiss Case

The increasing installation of controllable Distributed Energy Resources (DERs) in Distribution Networks (DNs) opens up new opportunities for the provision of ancillary services to the Transmission Network (TN) level. As the penetration of smart meter devices and communication infrastructure in DNs...

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Bibliographic Details
Published in:IEEE transactions on smart grid 2021-01, Vol.12 (1), p.268-278
Main Authors: Karagiannopoulos, Stavros, Mylonas, Costas, Aristidou, Petros, Hug, Gabriela
Format: Article
Language:English
Subjects:
Active distribution systems
Ancillary services
centralized control
distributed energy resources
Distributed generation
Electric potential
Electronic devices
Energy distribution
Energy exchange
Energy sources
Inverters
optimal power flow
Optimization
Power flow
Reactive power
Real time operation
Smart meters
Stability
transmission network
TSO-DSO interactions
Voltage
Voltage control
Voltage measurement
voltage support
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Summary:The increasing installation of controllable Distributed Energy Resources (DERs) in Distribution Networks (DNs) opens up new opportunities for the provision of ancillary services to the Transmission Network (TN) level. As the penetration of smart meter devices and communication infrastructure in DNs increases, they become more observable and controllable with centralized optimization-based control schemes becoming efficient and practical. In this paper, we propose a centralized tractable Optimal Power Flow (OPF)-based control scheme that optimizes the real-time operation of active DNs, while also considering the provision of voltage support as an ancillary service to the TN. We embed in the form of various constraints the current voltage support requirements of Switzerland and investigate the potential benefit of ancillary services provision assuming different operational modes of the DER inverters. We demonstrate the performance of the proposed scheme using a combined HV-MV-LV test system.
ISSN:1949-3053
1949-3061
DOI:10.1109/TSG.2020.3010884