Shipboard Zonal Load Center Modeling and Characterization on Real-Time Simulation Platform

This paper presents detailed modeling of a Zonal Load Center (ZLC) for a Shipboard Power System (SPS) in a Real-Time (RT) simulation platform. The system being modeled includes the main Power Conversion Module (PCM) and Battery Energy Storage Module (BESM) with interfacing bidirectional converter, where both converters are implemented with their designed control schemes to manage diverse operational modes. To establish confidence and achieve more insight into the ZLC power converters model, a set of cross-platform Verification and Validation (V&V) activities and frequency characterization are defined and executed. These cross-platform V&V activities include small-signal characterization of terminal impedances and disturbances propagation of ZLC converters and large-signal characterization of the PCM to elicit the response to over/under-voltage. The Opal-RT technologies and MATLAB/Simulink were adopted for the RT simulation and V&V activities.