Taking into Account Interactions Between Converters in the Design of Aircraft Power Networks
As shown in Fig. 1, the proposed topology is a basic ac network illustrating some possible interactions between converters. A voltage source inverter (VSI) generates an ac bus, which is used to convey electrical power. The VSI is connected to one specific load, an active front end (AFE) converter, which generates a dc bus for any other application. Finally, Fig. 1 demonstrates that all filters and passive elements are to be sized, as well as control loops.
To simplify the study, the VSI will be considered fixed (all passive elements and control strategy). The study begins with the design of the AFE, where a design by optimization methodology is considered. Next, this methodology introduced, emphasizing the interactions between the input and output electromagnetic interference filters, which prevent the use of conventional design methods. Once the converter has been designed (i.e., all passive elements are sized to reach the minimum weight), the control design step is addressed and interactions between the VSI and the AFE are highlighted. Finally, the validation of the embedded grid design, which is the stability study, is presented. A prospective design by optimization method at grid level will be presented in the conclusion.