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 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.

[1]  Gabriela Hug,et al.  A Centralised Control Method for Tackling Unbalances in Active Distribution Grids , 2018, 2018 Power Systems Computation Conference (PSCC).

[2]  Florian Dörfler,et al.  Fast power system analysis via implicit linearization of the power flow manifold , 2015, 2015 53rd Annual Allerton Conference on Communication, Control, and Computing (Allerton).

[3]  Nikos Hatziargyriou,et al.  Review, analysis and recommendations on recent guidelines for the provision of ancillary services by Distributed Generation , 2013, 2013 IEEE International Workshop on Inteligent Energy Systems (IWIES).

[4]  Mevludin Glavic,et al.  Receding-horizon control of distributed Generation to correct voltage or thermal violations and track desired schedules , 2016, 2016 Power Systems Computation Conference (PSCC).

[5]  Maria Zerva,et al.  Contribution of active distribution grids to the coordinated voltage control of the swiss transmission system , 2014, 2014 Power Systems Computation Conference.

[6]  Göran Andersson,et al.  Optimal sizing and placement of distributed storage in low voltage networks , 2016, 2016 Power Systems Computation Conference (PSCC).

[7]  Dolf Gielen,et al.  The role of renewable energy in the global energy transformation , 2019, Energy Strategy Reviews.

[8]  Gabriela Hug,et al.  Data-Driven Local Control Design for Active Distribution Grids Using Off-Line Optimal Power Flow and Machine Learning Techniques , 2019, IEEE Transactions on Smart Grid.

[9]  Nikolaos G. Paterakis,et al.  Minimization of distribution system losses by exploiting storage and anticipating market-driven behaviour of wind power producers , 2017, 2017 14th International Conference on the European Energy Market (EEM).

[10]  Duncan S. Callaway,et al.  Model-Free Optimal Coordination of Distributed Energy Resources for Provisioning Transmission-Level Services , 2018, IEEE Transactions on Power Systems.

[11]  J. Lofberg,et al.  YALMIP : a toolbox for modeling and optimization in MATLAB , 2004, 2004 IEEE International Conference on Robotics and Automation (IEEE Cat. No.04CH37508).

[12]  Gabriela Hug,et al.  Operational Planning of Active Distribution Grids under Uncertainty , 2017 .

[13]  Thierry Van Cutsem,et al.  Contribution to Bulk System Control and Stability by Distributed Energy Resources connected at Distribution Network , 2017 .

[14]  Gustavo Valverde,et al.  Model Predictive Control of Voltages in Active Distribution Networks , 2013, IEEE Transactions on Smart Grid.

[15]  Gabriela Hug,et al.  Co-optimisation of planning and operation for active distribution grids , 2017, 2017 IEEE Manchester PowerTech.

[16]  Dmitry Shchetinin,et al.  Coordination of Distributed Reactive Power Sources for Voltage Support of Transmission Networks , 2019, IEEE Transactions on Sustainable Energy.

[17]  Christoforos N. Hadjicostis,et al.  A Two-Stage Distributed Architecture for Voltage Control in Power Distribution Systems , 2013, IEEE Transactions on Power Systems.

[18]  Ruggero Carli,et al.  The value of communication in the voltage regulation problem , 2016, 2016 IEEE 55th Conference on Decision and Control (CDC).

[19]  Hongbin Sun,et al.  Review of Challenges and Research Opportunities for Voltage Control in Smart Grids , 2019, IEEE Transactions on Power Systems.

[20]  Fredrik Wallin,et al.  A Comprehensive Review of Smart Energy Meters in Intelligent Energy Networks , 2016, IEEE Internet of Things Journal.

[21]  Gabriela Hug,et al.  Active Distribution Grids Offering Ancillary Services in Islanded and Grid-Connected Mode , 2019, IEEE Transactions on Smart Grid.

[22]  Mattia Marinelli,et al.  Distribution grid services and flexibility provision by electric vehicles: A review of options , 2015, 2015 50th International Universities Power Engineering Conference (UPEC).

[23]  Vahid Vahidinasab,et al.  Centralized Support Distributed Voltage Control by Using End-Users as Reactive Power Support , 2016, IEEE Transactions on Smart Grid.

[24]  Pierluigi Mancarella,et al.  Active Distribution System Management: A Dual-Horizon Scheduling Framework for DSO/TSO Interface Under Uncertainty , 2017, IEEE Transactions on Smart Grid.

[25]  Stefano Barsali,et al.  Benchmark systems for network integration of renewable and distributed energy resources , 2014 .

[26]  J. Teng.  A direct approach for distribution system load flow solutions , 2003 .