D16.1 - Experimental Verification of Circuit-Losses Analysis-Model of DC-Output Converter Developed using Approximated Equations from Measurement Data and Datasheet Data

This paper proposes a circuit losses-analysis model of a DC-output converter based on the approximated losses equations from measurements and datasheet. The use of self-measured data, compared with the conventional use of datasheet values, enables expanding the validity range of losses prediction over the considerable design space of target parameters. Hence, the proposed losses analysis model fed with reduced- order approximated equations can deal with more target parameters with less calculation effort than otherwise reached with conventional time domain simulation. In this study, calculation flow of circuit losses including losses of power devices and inductor losses was developed. Finally, a 400 V prototype of DC-output converter modeling a part of DC/DC converter was built to verify the accuracy of the calculated circuit losses at selected operating conditions. The result shows that the losses calculated using the proposed model has an accuracy with an error of 1.9 % to 5.2 % to the measured result which fulfilled a target error of 8 % considered from previous working. Full paper will describe analysis process of equations in detail. Hence, it will expand verification points.