Benefits analysis of Soft Open Points for electrical distribution network operation
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Published version
Author(s)
Cao, W
Wu, J
Jenkins, N
Wang, C
Green, T
Type
Journal Article
Abstract
Soft Open Points (SOPs) are power electronic devices installed in place of normally-open points in electrical power distribution networks. They are able to provide active power flow control, reactive power compensation and voltage regulation under normal network operating conditions, as well as fast fault isolation and supply restoration under abnormal conditions. A steady state analysis framework was developed to quantify the operational benefits of a distribution network with SOPs under normal network operating conditions. A generic power injection model was developed and used to determine the optimal SOP operation using an improved Powell’s Direct Set method. Physical limits and power losses of the SOP device (based on back to back voltage-source converters) were considered in the model. Distribution network reconfiguration algorithms, with and without SOPs, were developed and used to identify the benefits of using SOPs. Test results on a 33-bus distribution network compared the benefits of using SOPs, traditional network reconfiguration and the combination of both. The results showed that using only one SOP achieved a similar improvement in network operation compared to the case of using network reconfiguration with all branches equipped with remotely controlled switches. A combination of SOP control and network reconfiguration provided the optimal network operation.
Date Issued
2015-12-30
Date Acceptance
2015-12-08
Citation
Applied Energy, 2015, 165, pp.36-47
ISSN
1872-9118
Publisher
Elsevier
Start Page
36
End Page
47
Journal / Book Title
Applied Energy
Volume
165
Copyright Statement
© 2016 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (http://
creativecommons.org/licenses/by/4.0/).
creativecommons.org/licenses/by/4.0/).
License URL
Sponsor
Engineering & Physical Science Research Council (E
Grant Number
EP/K006274/1
Subjects
Science & Technology
Technology
Energy & Fuels
Engineering, Chemical
Engineering
Soft Open Point
Back-to-back converters
Distribution network
Network reconfiguration
DISTRIBUTION-SYSTEMS
POWER
OPTIMIZATION
Energy
09 Engineering
14 Economics
Publication Status
Published