Header menu link for other important links
X
Power system state estimation using ip barrier method
Kishore Chitte,
Published in
2003
Volume: 1
   
Pages: 460 - 465
Abstract
A new formulation of power system state estimation problem and a new solution technique is presented. The formulation allows for inequality constraints such as VAr limits on generator and transformer tap ratio limits. The solution technique uses logarithmic barrier function to treat inequality constraints. Non-quadratic criteria for power system state estimation have to facilitate bad data detection and identification. The weighted least absolute value criteria have desired bad data rejection property. This paper shows that logarithmic barrier function can accommodate inequality constraints and then applying Newton method to solve KKT equation leads to problem structure which is identical to that of non-linear least square problem. The number of iterations needed for convergence does not increase linearly with problem size unlike LP algorithm.
About the journal
JournalIEEE Region 10 Annual International Conference, Proceedings/TENCON
Open AccessNo
Concepts (12)
  •  related image
    Algorithms
  •  related image
    Busbars
  •  related image
    Large scale systems
  •  related image
    Least squares approximations
  •  related image
    Linear programming
  •  related image
    Numerical analysis
  •  related image
    State estimation
  •  related image
    BARRIER FUNCTION
  •  related image
    INTERIOR POINT METHOD
  •  related image
    Power systems
  •  related image
    Sparsity
  •  related image
    Electric utilities