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Optimal Network Topology for Node-Breaker Representations With AC Power Flow Constraints

Journal Article · · IEEE Access
 [1];  [2]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Univ. of Wisconsin, Madison, WI (United States)
+ Show Author Affiliations
It has been demonstrated that network topology optimization (NTO) may change the topology of power system networks, and consequently, provide additional flexibility to reduce network congestion and violations. Most NTO problems are formulated based on the bus-branch model in which it is challenging to represent a realistic picture of all substation configurations. In this paper, we explore advantages of substation reconfiguration modeling based on node-breaker representations for NTO problem with full nonlinear alternating current power flow. It also proposes a tailored solution algorithm to solve this nonconvex mixed-integer nonlinear programming through the outer approximation method. The proposed solution approach iterates between a mixed-integer linear programming and a nonlinear subproblem. Additional enhancements to further accelerate the iteration process are illustrated. Numerical case studies demonstrate the relative economic and operational impact of optimal network topology with node-breaker representations.
Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1616825
Journal Information:
IEEE Access, Journal Name: IEEE Access Journal Issue: NA Vol. 8; ISSN 2169-3536
Publisher:
IEEECopyright Statement
Country of Publication:
United States
Language:
English

Figures / Tables (10)

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Related Subjects

42 ENGINEERING
Sparse Tableau Formulation
network topology optimization
node-breaker model
outer approximation
power system modeling