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Necessity of Power System State Estimation: A Generalized Linear State Estimation Solution with Application of PMU Measurements

  • M. Ravindra
  • R. Srinivasa Rao
  • V. Srinivasa Rao
  • N. Praneeth
  • Vasimalla Ashok
Conference paper
  • 16 Downloads
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 626)

Abstract

This paper presents a review on major blackouts occurred in power grid across the world and importance for the need of state estimation (SE) solution. This work introduces the applications of phasor measurement units (PMU) to reduce the occurrence of blackouts in power system. The blackouts in power system can occur due to overload, light load conditions, heavy storms or due to line outages. The cascade failure due to line outages, i.e., measured as N-1 outages can lead to power system blackout. The necessity of power system state estimation (PSSE) solution for protection in view of blackouts is discussed in this paper. A Generalized Linear State Estimation (GLSE) method is proposed to obtain robust and accurate states of power system network. A matrix integrating phasor and conventional measurements are formulated to obtain accurate states. IEEE transmission bus network such as 14-bus network is considered as test case for proposed GLSE programming in MATLAB. The accurate states are computed and compared with standard weighted least squares (WLS) method to show its effectiveness.

Keywords

Blackouts Linear state estimation Phasor measurement unit (PMU) State estimation Weighted least squares (WLS) 

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Copyright information

© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  • M. Ravindra
    • 1
  • R. Srinivasa Rao
    • 2
  • V. Srinivasa Rao
    • 5
  • N. Praneeth
    • 3
  • Vasimalla Ashok
    • 4
  1. 1.Department of Electrical and Electronics EngineeringAditya College of Engineering, Suram PalemKakinadaIndia
  2. 2.Department of Electrical and Electronics EngineeringUniversity College of Engineering, JNTUKKakinadaIndia
  3. 3.Department of Electrical and Electronics EngineeringGurunanak InstitutionsHyderabadIndia
  4. 4.Department of Electrical and Electronics EngineeringAnubose Institute of TechnologyKhammamIndia
  5. 5.Department of Electrical and Electronics EngineeringAditya Engineering College (A)SurampalemIndia

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