Advancing modeling, simulation and management design tools to improve future naval power systems generation and load management capabilities

摘要

The power systems for the next generation naval ships are expected to provide new levels of operational performance while maintaining the highest levels of efficiency. These demands are driven by emerging requirements and capabilities of power system components, such as new and smart loads, distributed and efficient generation, power conditioning, energy storage and propulsion elements, and the ever important need to complete mission objectives reliably, while expending as little resources as possible. This paper presents a set of modeling, simulation and management design tools to facilitate the design and operation of next generation shipboard power systems. A switched, differential-algebraic description of the system is used to capture the wide ranging time scales that are necessary to understand the operational performance of new power system architectures. These models provide insight into the inherent dynamic constraints of the power system which has both discrete and nonlinear behavior. This formulation provides a framework for the synthesis of optimal and supervisory control algorithms. A novel methodology is used to simulate the switched, nonlinear behavior of the system that enables resourceful computation of system variables and outputs. This simulation capability allows the rapid prototyping of associated control algorithms. This paper also presents the software architecture, user interface and data-logging tools to provide a robust test harness for validation and verification of the developed algorithms. The transition to industrial strength real-time code is also discussed. These advances are demonstrated on a benchmark Navy shipboard power system that includes a hybrid electric drive (HED).