Evaluation of power losses of a bidirectional three-port DC-DC converter using different sets of auxiliary inductances

PIRIS BOTALLA, LAUREANO; OGGIER, GERMAN; AIRABELLA, ANDRÉS M.; GARCIA, GUILLERMO

Cordoba

Congreso; 16th Workshop on Information Processing and Control, RPIC 2015; 2015

IEEE Argentina

This paper proposes a simple design approach for discrete time resonant controllers to control the output voltage of asingle-phase PWM inverter used on UPS applications. The design procedure is based on the analysis of relative stability margins and its relationship with the transient response specifications established by the IEC 62040-3 standard, and the steady state response specifications given by IEC 61000-2-2. The control strategy is based on an inner current loop using a proportional controller, and an external voltage control loop using resonant controllers. The simulation results for a 2kVAsingle-phase PWM inverter validate the design approach.