Excitation controller design for nonlinear multi-machine power system based on Hamilton theory

Becasuse of the influnce of coupling of the unit, generalized Hamiltonian theory is difficult to implement directly in a multi-machine power system. Firstly, a model of multi-machine power system after P.u. normalized was used. Considering the premise of mutual conductance, the model created a new Lyapunov function based on the theory of Hamiltonian and achieved a pseudo-generalized Hamiltonian system, as a result the addtion item problem due to the coupling has been solved. Secondly, a excitation controller of nolinear multi-machine power system was designed. Finally through the simulation analysis, proved better response curve and faster response speed of the system model.