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Title: A Hierarchical Modeling for Reactive Power Optimization With Joint Transmission and Distribution Networks by Curve Fitting

Here, in order to solve the reactive power optimization with joint transmission and distribution networks, a hierarchical modeling method is proposed in this paper. It allows the reactive power optimization of transmission and distribution networks to be performed separately, leading to a master–slave structure and improves traditional centralized modeling methods by alleviating the big data problem in a control center. Specifically, the transmission-distribution-network coordination issue of the hierarchical modeling method is investigated. First, a curve-fitting approach is developed to provide a cost function of the slave model for the master model, which reflects the impacts of each slave model. Second, the transmission and distribution networks are decoupled at feeder buses, and all the distribution networks are coordinated by the master reactive power optimization model to achieve the global optimality. Finally, numerical results on two test systems verify the effectiveness of the proposed hierarchical modeling and curve-fitting methods.
Authors:
 [1] ;  [1] ;  [2] ;  [3] ;  [4] ;  [3]
  1. Xi'an Jiaotong University (China). State Key Laboratory of Electrical Insulation and Power Equipment, School of Electrical Engineering
  2. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  3. Aalborg University (Denmark). Department of Energy Technology
  4. Univ. of Tennessee, Knoxville, TN (United States). Department of Electrical Engineering and Computer Science
Publication Date:
Report Number(s):
LLNL-JRNL-716920
Journal ID: ISSN 1932-8184
Grant/Contract Number:
AC52-07NA27344; 51607137
Type:
Accepted Manuscript
Journal Name:
IEEE Systems Journal
Additional Journal Information:
Journal Volume: 12; Journal Issue: 3; Journal ID: ISSN 1932-8184
Publisher:
IEEE
Research Org:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org:
USDOE; National Science Foundation (NSF)
Country of Publication:
United States
Language:
English
Subject:
24 POWER TRANSMISSION AND DISTRIBUTION; reactive power optimization; Curve fitting; decomposition; hierarchical modeling; joint networks
OSTI Identifier:
1357395