NDLI: Distributed congestion management of distribution networks to integrate prosumers energy operation

Content Provider	IET Digital Library
Author	Ai, Xin Wu, Jiechen Hu, Junjie Yang, Zhao Yang, Guangya
Abstract	A distributed congestion management scheme based on iterative distribution locational marginal price (iDLMP) to integrate distributed energy resources into the distribution network has been studied recently. However, this scheme has a requirement on the optimisation formulation for prosumers, i.e. the suboptimisation problem should be a convex one, which in certain cases might face challenges. A typical example is the non-linear constraints of the energy storage system (ESS), which ensures that charging and discharging of ESS are mutually exclusive. In this study, the authors consider the prosumer as a self-organising unit to integrate diverse resource flexibilities. Two roles exist in prosumer's energy operation: as a producer and as a consumer, which are also mutually exclusive for one prosumer at one time. When applying the iDLMP method to integrate prosumers energy operation, one meets a similar challenge as before. Thus, they make some reasonable assumptions about the transformer capacity, line capacity, and the price sensitivity parameters to convexify the optimisation problem. With these assumptions, a distributed convex optimisation framework is developed for the prosumers that can handle the non-convexity issue in the optimisation problem. The numerical results indicate that the proposed method can achieve local energy sharing in the distribution network, respecting the line congestion alleviation.
Starting Page	2988
Ending Page	2996
Page Count	9
ISSN	17518687
Volume Number	14
e-ISSN	17518695
Issue Number	Issue 15, Aug (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-gtd/14/15
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2019.1110
Journal	IET Generation, Transmission & Distribution
Publisher Date	2020-04-03
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Convex Programming Distributed Congestion Management Scheme Distributed Convex Optimisation Framework Distributed Energy Resources Distributed Power Generation Distribution Network Diverse Resource Flexibilities Energy Storage System ESS Iterative Distribution Locational Marginal Price Local Energy Optimisation Optimisation Problem Optimisation Technique Power Market Power System Economics Power System Managemen Power System Management Power System Operation Pricing Prosumer Prosumers Energy Operation Telecommunication Congestion Control
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

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