Quasi-periodicity and nonlinear phenomena in open and closed loop boost PWM DC/DC power converters are analysed. A new discrete time nonlinear mapping, the impact map, which models closed loop DC/DC power converters is presented and compared with the usual stroboscopic map. Also, it is shown that the power converter can exhibit complicate periodic behavior and quasi-periodicity both in open loop, when stimulated by a suitable external sinusoidal disturbance, and in closed loop with an appropriate choice of the state feedback gains. Simulation results show that in the closed loop case Naimarck-Sacker bifurcation and self-sustained tori can be obtained.
Quasi-periodic behaviors in DC-DC buck converter / DI BERNARDO, Mario; Garofalo, Francesco; Glielmo, L.; Vasca, F.. - STAMPA. - (1996), pp. 1376-1381. (Intervento presentato al convegno PESC96 (IEEE Power Electronics Specialist Conf.) tenutosi a Milan, Italy nel GIUGNO 1996) [10.1109/PESC.1996.548761].
Quasi-periodic behaviors in DC-DC buck converter
DI BERNARDO, MARIO;GAROFALO, FRANCESCO;L. Glielmo;
1996
Abstract
Quasi-periodicity and nonlinear phenomena in open and closed loop boost PWM DC/DC power converters are analysed. A new discrete time nonlinear mapping, the impact map, which models closed loop DC/DC power converters is presented and compared with the usual stroboscopic map. Also, it is shown that the power converter can exhibit complicate periodic behavior and quasi-periodicity both in open loop, when stimulated by a suitable external sinusoidal disturbance, and in closed loop with an appropriate choice of the state feedback gains. Simulation results show that in the closed loop case Naimarck-Sacker bifurcation and self-sustained tori can be obtained.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
