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WLAV state estimation for power system containing multitype FACTS devices
Author(s) -
Rakpenthai Chawasak,
Uatrongjit Sermsak,
Ngamroo Issarachai
Publication year - 2013
Publication title -
ieej transactions on electrical and electronic engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.254
H-Index - 30
eISSN - 1931-4981
pISSN - 1931-4973
DOI - 10.1002/tee.21841
Subject(s) - electric power system , interior point method , state (computer science) , voltage , transmission (telecommunications) , transmission system , computer science , power (physics) , power transmission , state variable , point (geometry) , mathematical optimization , control theory (sociology) , engineering , mathematics , algorithm , electrical engineering , telecommunications , physics , geometry , control (management) , quantum mechanics , artificial intelligence , thermodynamics
This paper presents the state estimation of power system in which not only the bus voltages but also the states of the flexible AC transmission system (FACTS) are considered as the state variables. By using the rectangular form of state variables and equivalent measurement techniques, a linear measurement model with constraints of FACTS device is obtained. The predictor–corrector interior point method based on the weighted least absolute value criterion is developed for solving the optimization problem. Simulation results on the modified IEEE 14‐bus and 118‐bus test systems are provided. The numerical results indicate the effectiveness of the proposed approach. © 2013 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.