Scalable cellular computational network based WLS state estimator for power systems

2015 ◽  
Author(s):  
Ashfaqur Rahman ◽  
Ganesh Kumar Venayagamoorthy
Keyword(s):  
Power Systems ◽  
State Estimator

POWER SYSTEM STATE ESTIMATION USING A ROBUST ESTIMATOR

2019 ◽  
Vol XVI (4) ◽  
pp. 53-65
Author(s):  
Zahid Khan ◽  
Katrina Lane Krebs ◽  
Sarfaraz Ahmad ◽  
Misbah Munawar
Keyword(s):  
Power Systems ◽  
State Estimation ◽  
Loss Function ◽  
Weighted Least Squares ◽  
Primary Data ◽  
Robust Estimator ◽  
System State ◽  
State Estimator ◽  
Suggested Approach ◽  
Power System State Estimation

State estimation (SE) is a primary data processing algorithm which is utilised by the control centres of advanced power systems. The most generally utilised state estimator is based on the weighted least squares (WLS) approach which is ineffective in addressing gross errors of input data of state estimator. This paper presents an innovative robust estimator for SE environments to overcome the non-robustness of the WLS estimator. The suggested approach not only includes the similar functioning of the customary loss function of WLS but also reflects loss function built on the modified WLS (MWLS) estimator. The performance of the proposed estimator was assessed based on its ability to decrease the impacts of gross errors on the estimation results. The properties of the suggested state estimator were investigated and robustness of the estimator was studied considering the influence function. The effectiveness of the proposed estimator was demonstrated with the help of examples which also indicated non-robustness of MWLS estimator in SE algorithm.

A Two-Level Static State Estimator for Electric Power Systems

1981 ◽  
Vol PER-1 (8) ◽  
pp. 34-35
Author(s):  
Th. Van Cutsem ◽  
J. L. Horward ◽  
M. Ribbens-Pavella
Keyword(s):  
Power Systems ◽  
Electric Power ◽  
Electric Power Systems ◽  
State Estimator ◽  
Static State

scholarly journals A Two-Stage State Estimator for Dynamic Monitoring of Power Systems

2017 ◽  
Vol 11 (3) ◽  
pp. 1767-1776 ◽  
Author(s):  
Markos Asprou ◽  
Saikat Chakrabarti ◽  
Elias Kyriakides
Keyword(s):  
Power Systems ◽  
Dynamic Monitoring ◽  
State Estimator ◽  
Two Stage

A two-stage state estimator for power systems with PMU and SCADA measurements

2013 ◽  
Author(s):  
Nikolaos M. Manousakis ◽  
George N. Korres ◽  
John N. Aliprantis ◽  
George P. Vavourakis ◽  
George-Constantine J. Makrinas
Keyword(s):  
Power Systems ◽  
State Estimator ◽  
Two Stage

A Two-Level Static State Estimator for Electric Power Systems

1981 ◽  
Vol PAS-100 (8) ◽  
pp. 3722-3732 ◽  
Author(s):  
Th. Van Cutsem ◽  
J. Horward ◽  
M. Ribbens-Pavella
Keyword(s):  
Power Systems ◽  
Electric Power ◽  
Electric Power Systems ◽  
State Estimator ◽  
Static State
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