NDLI: Adaptive robust optimal reactive power dispatch in unbalanced distribution networks with high penetration of distributed generation

Content Provider	IET Digital Library
Author	Li, Peishuai Wu, Zaijun Wang, Yang Dou, Xiaobo Hu, Minqiang Hu, Jingyi
Abstract	Due to the increasing penetration of the uncertain single-phase distributed generations (DGs), the current distribution networks are becoming more uncertain, unbalanced, and complicated than ever before, which brings great challenges for distribution network operators. This study proposes an adaptive robust optimal reactive power dispatch approach for the unbalanced distribution networks (U-DNs) considering uncertainty caused by DGs. Leveraging the reactive power compensation from inverters of DGs, the purpose of the proposed method is to minimise power losses and maintain the voltage within regulatory limits. The feasible region of DGs is estimated and considered as a new constraint, aiming to guarantee the reliable operation of U-DNs. The optimal reactive power dispatch problem is then formulated as an adaptive robust optimisation problem based on semidefinite programming. The adaptive function, which derives the relationship between reactive power and active power outputs of DGs, is utilised to make the method more flexible and less conservative. The cutting plane algorithm is introduced to solve the proposed adaptive robust reactive power dispatch model efficiently. Moreover, case studies are separately conducted on the modified IEEE 13-bus and 123-bus test systems to demonstrate the effectiveness of the proposed method.
Starting Page	1382
Ending Page	1389
Page Count	8
ISSN	17518687
Volume Number	12
e-ISSN	17518695
Issue Number	Issue 6, Mar (2018)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-gtd/12/6
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2017.0674
Journal	IET Generation, Transmission & Distribution
Publisher Date	2017-10-31
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Active Power Output Adaptive Function Adaptive Robust Optimal Reactive Power Dispatch Method Adaptive Robust Optimisation Problem Cutting Plane Algorithm Distributed Power Generation IEEE 123-bus Test System Inverter Invertors Mathematical Programming Modified IEEE 13-bus Test System Operation Reliability Optimal Reactive Power Dispatch Problem Optimisation Technique Power Generation Dispatch Power Generation Reliability Power Generation Scheduling Power Loss Minimization Reactive Power Compensation Reactive Power Output Reliability Semidefinite Programming U-DN Unbalanced Distribution Network Uncertain Single-phase Distributed Generation
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

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