Abstract
Trends in power system simulation that demand computationally-intensive, physics-based models may impede the acquisition of useful results for applications like condition-based maintenance, electrical plant load analysis (EPLA), and the scheduling and tasking of finite generation and distribution resources. A tool that can quickly evaluate many scenarios, as opposed to intense, high fidelity modeling of a single operating scenario, may best serve these applications. This paper presents a behavioral simulator that can quickly emulate the operation of a relatively large collection of electrical loads, providing “what-if” evaluations of various operating scenarios and conditions for more complete exploration of a design or plant operating envelope. The presented simulator can provide time-series data of power system operation under loading conditions and usage assumptions of interest. Comparisons to field data collected from a microgrid on-board a 270-foot (82 meter) US Coast Guard medium-endurance cutter demonstrate the utility of this tool and approach.
Highlights
A PPLYING the remarkable gift of vast computational capability in an endless drive for increased simulation fidelity with the physical world may offer diminishing returns in many design and analysis efforts
The simulator was challenged to reproduce various ship missions, with testing culminating in a 41day simulation shown in Fig. 9b, which spanned multiple missions, speeds, and temperatures
The duty cycle, electrical plant load analysis (EPLA) load factors, and average power results computed from the Shipboard Power Simulator (SPS) emulations provide fantastic estimates in comparison to actual observations on-board a ship
Summary
A PPLYING the remarkable gift of vast computational capability in an endless drive for increased simulation fidelity with the physical world may offer diminishing returns in many design and analysis efforts. T. Deeter et al.: Behavioral Modeling for Microgrid Simulation capability and to explore options for condition-based maintenance [13], electrical plant load analysis (EPLA [14]), and the scheduling and tasking of limited generation and distribution resources [15]. This paper introduces the Shipboard Power Simulator (SPS), a software tool configured as a behavioral simulator that can quickly emulate the operation of a relatively large collection of electrical loads on a microgrid, providing “what-if” evaluations to support more complete exploration of a design space or plant operating envelope, and is further detailed in [17]. The SPS is evaluated against ship data from SPENCER to demonstrate it’s ability to accurately model ship behavior for various “what-if” scenarios, such as ship operational status, or “mission”, and a load operating in a degraded condition
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