Optimal power flow solution using improved harmony search method

  • Authors:
  • Nampetch Sinsuphan;Uthen Leeton;Thanatchai Kulworawanichpong

  • Affiliations:
  • Power System Research Unit, School of Electrical Engineering, Suranaree University of Technology, Nakhon Ratchasima, Thailand;Power System Research Unit, School of Electrical Engineering, Suranaree University of Technology, Nakhon Ratchasima, Thailand;Power System Research Unit, School of Electrical Engineering, Suranaree University of Technology, Nakhon Ratchasima, Thailand

  • Venue:
  • Applied Soft Computing
  • Year:
  • 2013

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Abstract

This paper describes the improved harmony search method (IHS) to solve optimal power flow (OPF) problems. The harmony search is one of meta-heuristic search methods inspired by the improvisation of musicians developed by Geem (2001) [23]. The proposed algorithm was tested with five standard IEEE test systems (6-bus, 14-bus, 30-bus, 57-bus and 118-bus test systems). The tests were divided into smooth and non-smooth fuel-cost cases. The comparisons among solutions obtained by sequential quadratic programming (SQP), genetic algorithms (GA) and IHS were conducted. As revealed from the simulated results, the effectiveness of the IHS for solving OPF problems was confirmed.