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Power system output feedback stabilizer design via optimal subeigenstructure assignment
Author(s) -
Huang T. L.,
Chen S. C.,
Hwang T. Y.,
Yang W. T.
Publication year - 1991
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/er.4440150609
Subject(s) - stabilizer (aeronautics) , control theory (sociology) , output feedback , power (physics) , optimal design , control engineering , computer science , engineering , mathematics , physics , control (management) , thermodynamics , mechanical engineering , statistics , artificial intelligence
The paper addresses the design of a power system stabilizer using an optimal reduced order model whose state variables are torque angles and speeds. System damping can be improved using eigenvalue assignment, and the co‐ordination of stabilizers can be achieved through eigenvector assignment by maintaining system mode shape. The proportional‐integral PSS is derived via the optimal reduced order model instead of via the whole system model. The effectiveness of this stabilizer is evaluated, and this study reveals that the result of eigenstructure assignment is more stable and much better than in the assignment method based on the whole system model. A one‐machine infinite‐bus system and a multimachine system are given as examples to illustrate the advantages and effectiveness of the proposed approach. Results based on the whole system model are included for comparison.