Modelling and simulation of distributed power systems

A method for efficiently analyzing distributed power systems during the design process is presented. Individual DC-DC power converters are modeled by using averaged or device-level representations. The averaged models for basic power converter topologies are combined with behavioral models for the control loop. Simulation accuracies close to those for a full component-level model can be achieved with more than an order-of-magnitude reduction of the simulation time. The newly developed models are used for system-level simulation. System stability for fully distributed loads is readily determined for a number of power systems configurations.<>