Control of a Three-Phase Boost Rectifier for Operation Under Single Failure of the AC Line for Avionic Application

The designed equipment for airborne applications must pass a series of exhaustive requirements. One of the most important feature is robustness to failures. The goal of this paper is to analyze and develop a three-phase active boost rectifier which is able to tolerate failures from the mains. The control strategy used is based on well known Double Decoupled Synchronous Reference Frame (DDSRF) control. This paper will adapt the DDSRF control algorithm used primarily for the fixed frequency 50/60 Hz conventional grid connected inverters, to the three-phase variable frequency 360-800 Hz aircraft grid connected rectifiers. It is shown that, depending on the mains failure case, only by modifying the current references of the control structure full power is provided with minimum impact on the input current quality. Finally, the experimental results, obtained from constructed six-switch full-SiC 3.45 kW prototype, are in very good agreement with the provided analysis.