PROJECT TITLE :

Solid-State Single-Port Series Damping Device for Power Converters in DC Microgrid Systems

ABSTRACT:

Because of interactions between the bus impedance, input filters, and converters, dc microgrid power converters may experience undesirable input voltage and current oscillations. These oscillations can be dealt with using a solid-state single-port series damper (the "S 3 damper"). Using a transistor as an ac resistor, the damper is linked between the input filter and the converter. It reduces the filter's quality factor, which has a dampening impact on the converter's interaction with the filter. As a result, it helps to prevent voltage and current oscillations between the filter's input impedance (Impedance) and bus. A low-dropout voltage regulator is also used to keep the transistor from wasting energy. The system of control is self-contained. It also doesn't require any power capacitor or inductor, which favours the damper's compactness and long-term durability. The S 3 damper will be modelled, designed, and thoroughly analysed by us. Prototype dampers have been created and tested for the commercially available 100 W DC-DC converter, which operates on a 48 V bus.