Distribution network observation based on security region geometry

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CIRED 2019 - 640.pdf (285.54 KB)

Paper number

640

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Conference name

CIRED 2019

Conference date

3-6 June 2019

Conference location

Madrid, Spain

Peer-reviewed

Yes

Short title

Convener

Authors

Xiao, Jun, Tianjin University, China
Zhang, Baoqiang, Tianjin University, China
LI, Fangxing, The University of Tennessee, USA

Abstract

This paper discovers a new view to observe distribution networks, which is to observe the geometry of distribution system security region (DSSR). DSSR is approximately a hyper-polyhedron in high-dimensional Euclidean space, so it is natural to observe its geometric features. First, the concept of DSSR geometry full-dimensional (FD) observation is proposed. Second, a FD observation method is proposed as: Step 1. Calculate DSSR radius, which is the minimum Manhattan distance from the zero loading point to a security boundary divided by the number of variables in the boundary expression. Step 2. Form DSSR shape view and indices to observe the roundness of DSSR; then form dent view and indices to find dents on DSSR surface. Step 3. Take measures on the network to improve its DSSR shape. Finally, cases are studied, in which the DSSR is visualized and observed in full dimension for the first time. The dents on DSSR surface are successfully located, which indicate the defects of the case network; and dents disappear after improvements are done. The DSSR observation results are also validated by power supply capability curves and indices. In conclusion, the proposed observation is effective, which could help us to better understand the operational limit and efficiency of distribution networks.

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Publisher

AIM

Date

2019-06-03

Published in

CIRED 2019 Conference

Permanent link to this record

https://cired-repository.org/handle/20.500.12455/92
http://dx.doi.org/10.34890/185

ISSN

2032-9644

ISBN

978-2-9602415-0-1