Stability analysis of DC networks: Coupling phenomenon between equipment connected to a single DC bus

Electrical systems in aeronautics have known an important development in these recent years, which required the development of complex architectures as HVDC networks (High Voltage Direct Current). This type of architecture enables the delivery of electricity from the source to the equipment. However, the integration of many different types of equipment increases the risk of instability problems on DC network disturbed power. This paper presents the different structures used and the different rules adopted to ensure the stability constraints of the entire system. An experimental validation of interaction analysis between two devices connected to a single DC bus is presented to support the theoretical results.