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Allocation of Static Var Compensator in Electric Power Systems Considering Different Load Levels

  • Edmarcio A. Belati
  • Claudionor F. NascimentoEmail author
  • Haroldo de FariaJr.
  • Edson H. Watanabe
  • Antonio Padilha-Feltrin
Article
  • 92 Downloads

Abstract

This paper proposes an approach to determine the optimal location of static var compensators (SVCs) in electric power systems in order to improve voltage profile and minimize active power losses. A multi-scenario framework that includes different load levels with different time periods is considered in this approach. The problem is formulated as a mixed-integer nonlinear programming problem using an optimal power flow (OPF). The SVC value and location are modeled as a variable susceptance inside the bus admittance matrix and as a binary decision variable, respectively. The problem is solved using the branch and bound algorithm associated with the OPF. Studies and simulations were conducted on the IEEE 118-bus test system considering variations in both the objective function and the amount of SVCs to be allocated. Analysis of results demonstrate that the performance of the power system can be effectively enhanced due to the optimal allocation of SVC equipment if considering different load levels with different time periods for the allocation of SVCs, rather than allocate the SVCs separately.

Keywords

Branch and bound algorithm Flexible alternating current transmission systems Optimal power flow Static var compensator 

Notes

Acknowledgements

The authors acknowledge financial support from FAPESP under Grant 2014/14361-8, CNPq under Grant 306243/2014-8 and FAPERJ under Grants E-26/202886/2017, E-26/101953/2012 and E-26/110400/2014.

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Copyright information

© Brazilian Society for Automatics--SBA 2018

Authors and Affiliations

  1. 1.Universidade Federal do ABC (CECS/UFABC)Santo AndréBrazil
  2. 2.Universidade Federal de São Carlos (CCET/UFSCar)São CarlosBrazil
  3. 3.Universidade Federal do Rio de Janeiro (COPPE/UFRJ)Rio de JaneiroBrazil

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