Characteristics and Possible Resonant Oscillations in an Open Industrial DC grid

Today DC offers far-reaching advantages over AC. Therefore, many devices have been equipped with an internal DC link for many years. In the field of energy supply, the use of DC technology is also growing and is state of the art in offshore, high-voltage, vehicle, data center applications. The spread of industrial open DC grids is currently starting and is completely different due to the requirements: The DC grid is highly dynamic. This means that the oscillation behavior must be investigated. The paper describes the characteristics and the limits of stability for an open industrial DC grid.