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Nonlinear adaptive excitation controller design for multimachine power systems

conference contribution
posted on 2015-01-01, 00:00 authored by Tushar Kanti Roy, Apel MahmudApel Mahmud, W Shen, Aman Maung Than OoAman Maung Than Oo
This paper presents a nonlinear adaptive excitation control scheme to enhance the dynamic stability of multimachine power systems. The proposed controller is designed based on the adaptive backstepping technique where the mechanical power input to the generators and the damping coefficient of each generator are considered as unknown. These unknown quantities are estimated through the adaption laws. The adaption laws are obtained from the formulation of Lyapunov functions which guarantee the convergence of different physical quantities of generators such as the relative speed, terminal voltage, and electrical power output. The proposed scheme is evaluated by applying a three-phase short-circuit fault at one of the key transmission lines in an 11-bus test power system and compared with an existing backstepping controller and conventional power system stabilizer (CPSS). Simulation results show that the proposed scheme is much more effective than existing controllers.

History

Event

IEEE PES General Meeting (2015: Denver, Colo.)

Pagination

1 - 5

Publisher

IEEE

Location

Denver, Colo.

Place of publication

Piscataway, N.J.

Start date

2015-07-26

End date

2015-07-30

ISSN

1944-9925

eISSN

1944-9933

ISBN-13

9781467380409

Language

eng

Publication classification

E Conference publication; E1 Full written paper - refereed

Copyright notice

2015, IEEE

Title of proceedings

2015 IEEE Power and Energy Society General Meeting