Using ordinal optimization approach in power distribution systems

Atmaca E., Ersoz D.

13th IEEE Mediterranean Electrotechnical Conference (MELECON 2006), Benalmadena, Spain, 16 - 19 May 2006, pp.1032-1035 identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Volume:
  • Doi Number: 10.1109/melcon.2006.1653275
  • City: Benalmadena
  • Country: Spain
  • Page Numbers: pp.1032-1035
  • Istanbul University Affiliated: Yes


This study investigates the applicability of ordinal optimization approach to optimal control of power distribution systems. This approach enables us searching for a solution good enough with high probability instead of the best for sure in solving those problems with huge search spaces. Power distribution system control is such a problem, to which a near-optimal solution can be found by evolutionary search techniques. In this study we calculated node voltages and power losses of a sample system corresponding to all possible OLTC settings and capacitor on/off statuses. We obtained these solutions exactly and approximately and investigated the coincidences between the best 1%, the best 5%, and the best 10% of these solutions correspondingly. Results show that based on approximately-calculated node voltages and power losses a near-optimal solution can still be found to power distribution system control problem by an evolutionary search technique with considerable saving in total computation time.