Robust adaptive excitation control of synchronous generators in multimachine power systems under parametric uncertainties and external disturbances
Version 2 2024-06-02, 13:45Version 2 2024-06-02, 13:45
Version 1 2018-03-01, 12:18Version 1 2018-03-01, 12:18
conference contribution
posted on 2024-06-02, 13:45authored byTK Roy, MA Mahmud, Aman Maung Than Oo, Enamul HaqueEnamul Haque
In this paper, a robust adaptive excitation control
scheme is proposed for synchronous generators in multimachine
power systems. The controller is designed to provide robustness
against parametric uncertainties and external disturbances
while enhancing the transient stability of multimachine power
systems. The dynamics of synchronous generators and excitation
systems are used to design the controller. The parametric
uncertainties are incorporated by considering the parameters of
synchronous generators and exciters, which degrades the stability
margin, as totally unknown. The unknown parameters are
estimated through adaptation laws and external disturbances
are bounded to guarantee the overall stability of multimachine
power systems. The stability of multimachine power systems is
analyzed using control Lyapunov functions (CLFs) and proved
through the negative semi-definiteness of the derivative of CLFs.
The performance of the proposed control scheme is evaluated on
an IEEE standard 10 Machine 39-bus New England test system
and compared with an existing adaptive excitation controller.