This work addresses the control of a high voltage, high power single phase rectifier suitable for traction applications. A multilevel H-bridge single phase configuration has been considered. Such a converter often presents instability problems making difficult its design and uncertain its behaviour. This paper proposes a new controller based on the passivity-based approach. Such a controller allows stability, unity-power factor, good balancing of the two dc links and a satisfactory transient behaviour even in presence of sudden load changes. A different choice of the damping parameters allows fulfilling the system requirements in terms of reduced dc link voltage error or low grid current distortion or to find an optimum trade-off between them. The better performance in comparison with a PI are demonstrated.
A multilevel front-end stage for traction systems with a passivity-based controller / Dell' Aquila, A.; Liserre, M.; Monopoli, V. G.; Cecati, C.. - STAMPA. - (2003), pp. 690-695. (Intervento presentato al convegno 18th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2003 tenutosi a Miami, FL nel February 09-13, 2003) [10.1109/APEC.2003.1179289].
A multilevel front-end stage for traction systems with a passivity-based controller
A. Dell' Aquila;M. Liserre;V. G. Monopoli;
2003-01-01
Abstract
This work addresses the control of a high voltage, high power single phase rectifier suitable for traction applications. A multilevel H-bridge single phase configuration has been considered. Such a converter often presents instability problems making difficult its design and uncertain its behaviour. This paper proposes a new controller based on the passivity-based approach. Such a controller allows stability, unity-power factor, good balancing of the two dc links and a satisfactory transient behaviour even in presence of sudden load changes. A different choice of the damping parameters allows fulfilling the system requirements in terms of reduced dc link voltage error or low grid current distortion or to find an optimum trade-off between them. The better performance in comparison with a PI are demonstrated.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
