RPG Seminar – A Decision-dependent Distributionally Robust Approach to Resilient Enhancement of Active Distribution Networks
Date:
25 Oct, 2021 (Mon)
Time:
2:00 pm - 3:00 pm
Location:
Room 603, Chow Yei Ching Building

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Speaker

Miss Yujia Li
Department of Electrical and Electronic Engineering,
The University of Hong Kong

Abstract

Recent increases in the frequency of extreme weather events, along with their catastrophic impact on power systems have underlined the significance of enhancing power system resilience. Here we propose a resilience-oriented two-stage hardening strategy for active distribution networks (ADNs) based on a decision-dependent distributionally robust optimization (DD-DRO) approach, which simultaneously accounts for the decision-dependent uncertainty (DDU) and distributional ambiguity of network contingency. The first stage is to derive the proactive resilience enhancement measures, including pole and line upgradation, vegetation management, distributed generation allocation and network reconfiguration. The second stage is to minimize total expected load shedding throughout the propagation of the extreme event, assuming the worst-case probability distribution for network contingency identified in the decision-dependent ambiguity set for network contingency. Then, through utilizing the duality theory and McCormick envelope, the original model is recast into a two-stage robust optimization formulation which facilitate the column-and-constraint (C&CG) algorithm. Case studies verified the performance of the proposed strategy, as well as its merits in terms of DDU and distributional ambiguity considerations.

 

Biography of the speaker:

Miss Yujia Li received the B.E. degree in Electrical and Electronic Engineering from Huazhong University of Science and Technology, Wuhan, China, in 2018. She is currently pursuing the Ph.D. degree in Electrical and Electronic Engineering at The University of Hong Kong. Her research interests include operation and planning of resilient power system and integration of renewables.

 

All are welcome!!


Organizer

Dr. Yunhe Hou

Most seminars are open to the general public, free of charge, unless otherwise stated. Registration is not required. Arrangement for car parking facilities on campus please contact us for details.

For enquiries, please contact:
Department of Electrical and Electronic Engineering,
Room 601, Chow Yei Ching Building,
Pokfulam Road, Hong Kong
Tel: (852) 3917 7093
Email: seminar@eee.hku.hk