Journal of Electrical Engineering and Technology

  • 제13권5호
  • /
  • Pages.1814-1820
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  • 2018
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  • 1975-0102(pISSN)
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  • 2093-7423(eISSN)
대한전기학회 (The Korean Institute of Electrical Engineers)
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Complete and Incomplete Observability Analysis by Optimal PMU Placement Techniques of a Network

  • Krishna, K. Bala (Dept. of Electrical and Electronic Engineering, Vignan's Foundation for Science, Technology & Research) ;
  • Rosalina, K. Mercy (Dept. of Electrical and Electronic Engineering, Vignan's Foundation for Science, Technology & Research) ;
  • Ramaraj, N. (School of Electrical engineering and computing, Adama Science and Technology University)
  • 투고 : 2017.05.30
  • 심사 : 2018.04.23
  • 발행 : 2018.09.01
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초록

State estimation of power systems has become vital in recent days of power operation and control. SCADA and EMS are intended for the state estimation and to communicate and monitor the systems which are operated at specified time. Although various methods are used we can achieve the better results by using PMU technique. On placing the PMU, operating time is reduced and making the performance reliable. In this paper, PMU placement is done in two ways. Those are 'optimal technique with pruning operation' and 'depth of unobservability' considering incomplete and complete observability of a network. By Depth of Unobservability Number of PMUs are reduced to attain Observability of the network. Proposed methods are tested on IEEE 14, 30, 57, SR-system and Sub systems (1, 2) with bus size of 270 and 444 buses. Along with achieving complete observability analysis, single PMU loss condition is also achieved.

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참고문헌

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