N-1 security-constrained integration of distributed generators in active distribution grids with energy storage support

Jia Liu, Pingliang Zeng, Zhen He, Yalou Li, Qiuwei Wu

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

This paper presents a distributed generator (DG) allocation model in active distribution networks considering energy storage support and system N-l security. Uncertainties associated with renewable energy generation, component contingency and load variation are considered using a set of representative scenarios. Active distribution network management schemes, i.e., on-load tap-changer voltage control, renewable DG curtailment and demand side management, are also inherent. Energy storage devices are integrated into the network to increase the energy utilization efficiency and improve more renewable energy accommodation. The system N-l security is quantitatively evaluated using the security distance defined in this paper. The original non-linear model is relaxed into a convex model using second-order conic programming, which is bearable with off-the-shelf solvers. Case study carried out on a 104-bus distribution grid validates the performance of the proposed method.

Original languageEnglish
Title of host publicationProceedings of 4th Conference on Energy Internet and Energy System Integration : Connecting the Grids Towards a Low-Carbon High-Efficiency Energy System, EI2 2020
PublisherIEEE
Publication date30 Oct 2020
Pages2528-2533
Article number9346745
ISBN (Electronic)9781728196060
DOIs
Publication statusPublished - 30 Oct 2020
Event4th IEEE Conference on Energy Internet and Energy System Integration - Wuhan, China
Duration: 30 Oct 20201 Nov 2020

Conference

Conference4th IEEE Conference on Energy Internet and Energy System Integration
Country/TerritoryChina
CityWuhan
Period30/10/202001/11/2020
SponsorBeijing Sifang Automation Co., Ltd., Dongfang Electronics Corporation, Ltd., Huadian Technology, South China Intelligent Electrical Technology Co., Ltd, Sunwoda Electronic Co., Ltd
Series2020 IEEE 4th Conference on Energy Internet and Energy System Integration: Connecting the Grids Towards a Low-Carbon High-Efficiency Energy System, EI2 2020

Bibliographical note

Funding Information:
This work is supported by the National Key R&D Program of China (2018YFE0208400) and Zhejiang Provincial Natural Science Foundation of China (LQ21E070003).

Publisher Copyright:
© 2020 IEEE.

Keywords

  • Active distribution grid
  • Convex relaxation
  • Distributed generator allocation
  • Energy storage device
  • N-1 contingency

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