Investigation of Load Transitions Between Loaded and Load Free Conductor Segments in Industrial Conductor Systems

Due to the increasingly widespread use of efficient power electronics, DC grids offer more and more advantages over AC grids. 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 and data center applications. The spread of industrial open DC grids is currently starting and is completely different due to the requirements and the specifics of certain industrial applications such as conductor systems, e.g. monorail conveyer or rack feeder systems. This paper investigates multi feed in operation in industrial DC conductor systems, especially for transitions between loaded and load free conductor segments. For this purpose, a test bench consisting of two conductor segments is developed. Each segment is individually fed by an infeed converter. The transitions between segments will be analyzed regarding control behavior and stability.