| Abstract |
Recently, a new dynamic control algorithm was proposed for a series-resonant converter, i.e.bidirectional optimal trajectory control. It regulates the amount of charge that is drawn from, orsupplied to, the sources that are connected to the primary and secondary input ports of the converter. Additionally, it realizes a dead-beat control while guaranteeing zero voltage switching of all switches over the entire input and output voltage range.This paper presents a comparative evaluation of a bidirectional optimal trajectory controlled,series-resonant converters with four different switching leg configurations. The comparison comprisesan analysis of bidirectional optimal trajectory control on the semiconductor chip area, the resonant tank volume and losses, and the operating frequency range of the converter. Also included is the implementation complexity, which covers both the measurement and computational effort. Evaluating all advantages and drawbacks of the compared switching leg configurations, the 3-levelfull-bridge full-bridge series-resonant converter shows the most advantageous properties for a series-resonant, bidirectional optimal trajectory controlled isolated DC-DC converter. |
