Abstract
Reliability-oriented design has been proved to be a kind of effective design methodology for power electronic equipment. This paper proposes a design method to obtain the value of inductance and capacitance sets that obtain high capability, power density, high reliability of an LC filter in buck converters through a multi-objective optimization way. The cutoff frequency, lifetime of capacitor and total volume of LC filter are set as objectives in the optimization procedure. The relationship of design objectives and parameters are analyzed. The distribution of these objects and corresponding parameters as well as the Pareto front of the objectives are presented. Simulation and experiment results are presented and verified the theoretical analysis.
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