The power supply systems of advanced aviation concepts, such as a more or fully electric aircraft, involve the operation of high-temperature superconductor (HTS) devices together with power semiconductor converters. Since modern HTS materials require their cooling to critical temperatures achieved using cryogenic cooling, it is advisable to study the possibility of using the cryogenic cooling for cooling semiconductor power converters. The article considers the development of a prototype controlled three-phase rectifier with cryogenic cooling of its power stage for use in advanced aircraft power supply systems. The rectifier is built as a power factor corrector to meet the power quality requirements imposed by aviation standards. To achieve more efficient operation of the power supply system, it is proposed to use an increased bipolar DC voltage. The structures of power converter stages are analyzed by way of comparison; the preliminary quality indicators of the power consumed by them have been studied, and a rational structure for this application has been selected. The results of computer simulation and the design of the developed prototype are shown. In the course of testing the assembled device, its performance under cryogenic conditions at an increased DC output voltage has been confirmed. The results of accomplished experimental studies are presented.
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Alekseev et al. (2024) studied this question.
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