Distribution network observation based on security region geometry
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Paper number
640
Working Group Number
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
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.
Table of content
Keywords
Publisher
AIM
Date
2019-06-03
Published in
Permanent link to this record
https://cired-repository.org/handle/20.500.12455/92
http://dx.doi.org/10.34890/185
http://dx.doi.org/10.34890/185
ISSN
2032-9644
ISBN
978-2-9602415-0-1