Nonlinear observability formulation for shipboard power systems incorporating converter dynamics

Performance of planned shipboard distribution/generation systems can be affected by power fluctuations and inappropriate control strategies. A measure of observability of such systems will allow one to quantify their operational performance. This paper attempts to account for observability of these systems through the incorporation of nonlinear dynamics of converters and electromechanical behavior of generators and loads. The example section will focus on a DAE model of a shipboard system where observability formulation is applied and results reflect the influence of these additional states on overall observability and system performance.