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Distributed Optimization in Distribution Systems: Use Cases, Limitations, and Research Needs

Journal Article · · IEEE Transactions on Power Systems

We report electric distribution grid operations typically rely on both centralized optimization and local non-optimal control techniques. As an alternative, distribution system operational practices can consider distributed optimization techniques that leverage communications among various neighboring agents to achieve optimal operation. With the rapidly increasing integration of distributed energy resources (DERs), distributed optimization algorithms are growing in importance due to their potential advantages in scalability, flexibility, privacy, and robustness relative to centralized optimization. Implementation of distributed optimization offers multiple challenges and also opportunities. This paper provides a comprehensive review of the recent advancements in distributed optimization for electric distribution systems and classifications using key attributes. Problem formulations and distributed optimization algorithms are provided for example use cases, including volt/var control, market clearing process, loss minimization, and conservation voltage reduction. Finally, this paper also presents future research needs for the applicability of distributed optimization algorithms in the distribution system.

Research Organization:
National Renewable Energy Laboratory (NREL), Golden, CO (United States)
Sponsoring Organization:
USDOE; US-India Collaborative for Smart Distribution System with Storage (UI-ASSIST) Consortium; National Science Foundation (NSF)
Grant/Contract Number:
AC36-08GO28308; IA0000025; 1932574; 2112533
OSTI ID:
1889679
Report Number(s):
NREL/JA-5000-84102; MainId:84875; UUID:0e8dfc47-f6a0-47a8-abfb-b37d1c501229; MainAdminID:67586
Journal Information:
IEEE Transactions on Power Systems, Vol. 37, Issue 5; ISSN 0885-8950
Publisher:
IEEECopyright Statement
Country of Publication:
United States
Language:
English

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