Abstract
Modelling of bidirectional full bridge DC-DC converter as one of the most applicable converters has received significant attention. Mathematical modelling reduces the simulation time in comparison with detailed circuit response; moreover it is convenient for controller design purpose. Due to simple and effective methodology, average state space is the most common method among the modelling methods. In this paper a bidirectional full bridge converter is modelled by average state space and for each mode of operations a controller is designed. Attained mathematical model results are in a close agreement with detailed circuit simulation.
Highlights
Modeling of DC-DC converter as one of the most applicable industrial converters has aroused a lot of interest
The simulated start up process of the predicted mathematical model and detailed circuit simulation with fixed duty cycle is depicted in Figures 8(a) and (b), respectively
In this paper a bidirectional full bridge DC-DC converter as one of the most applicable industrial converters has been modeled with average state space method
Summary
Modeling of DC-DC converter as one of the most applicable industrial converters has aroused a lot of interest. Attained mathematical model can reduce the simulation time in comparison with the simulation time provided by “cycle by cycle” solving the differential equations of the circuit, as is the case in matlab/ simulink. Bidirectional DC-DC converters (BDC) are one of the most important interfaces that have applications such as: hybrid or electrical vehicles [1], aerospace systems [2], telecommunications, solar cells, battery chargers [3], DC motor drive circuits [4], uninterruptable power supplies [5,6,7], etc. Modeling, average state space seems to be one of the most common, simplest, and effective methods, so in this paper we model a bidirectional full bridge DC-DC converter with average state space to gain the appropriate transfer functions for controller design purpose in both modes of operation
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