NDLI: Hybrid approach for planning and operating active distribution grids

Content Provider	IET Digital Library
Author	Karagiannopoulos, Stavros Aristidou, Petros Hug, Gabriela
Abstract	This paper investigates the planning and operational processes of modern distribution networks hosting distributed energy resources (DERs). While in the past the two aspects have been distinct, a methodology is proposed in this paper to co-optimise the two phases by considering the operational flexibility offered by DERs already in the planning phase. By employing AC optimal power flow (OPF) to analyse the worst-case scenarios for the load and distributed generator injection, the optimal set-points for the DERs are determined such that the network's security is ensured. From these results, the optimised individual characteristic curves are then extracted for each DER which are used in the operational phase for the local control of the devices. The optimised controls use only local measurements to address system-wide issues and emulate the OPF solution without any communication. Finally, the proposed methodology is tested on the Cigre LV benchmark grid confirming that it is successful in mitigating with acceptable violations over- and under-voltage problems, as well as congestion issues. Its performance is compared against the OPF-based approach and currently employed local control schemes.
Starting Page	685
Ending Page	695
Page Count	11
ISSN	17518687
Volume Number	11
e-ISSN	17518695
Issue Number	Issue 3, Feb (2017)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-gtd/11/3
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2016.0642
Journal	IET Generation, Transmission & Distribution
Publisher Date	2017-02-16
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	AC Optimal Power Flow Active Distribution Grid Operation Active Distribution Grid Planning Characteristic Curves DERs Distributed Energy Resources Distributed Generator Injection Distributed Power Generation Distribution Network Load Flow Load Forecasting Local Control Scheme Network Security OPF Optimal Set-Point Overvoltage Problem Power Distribution Planning Power Generation Planning Power Grid Power System Control Power System Planning And Layout Power System Security The Cigre LV Benchmark Grid Undervoltage Problem
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

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