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A novel approach to power quality assessment based on real-time (RT) hardware-in-the-loop (HIL) simulation is proposed. The RT-HIL platform is being used for power quality studies of NAVY all-electric ships. The sensitivity for power quality deviations of a variable speed drive controller card was tested in the platform. The successful experiment has contributed to the conceptual design of a universal power quality test bed, which would have the function of testing the immunity of electric components and equipment and the consequent impact on ac distribution systems. Index Terms--All-electric ship, hardware-in-the-loop simulation, harmonics, power quality, voltage sags.

This paper presents a detailed model for simulation of a Superconducting Magnetic Energy Storage (SMES) system. SMES technology has the potential to bring real power storage characteristic to the utility transmission and distribution systems. The principle of SMES system operation is reviewed in this paper. To understand transient and dynamic performance of a SMES system, a detailed SMES system benchmark model is given with extensive simulation results. This system is demonstrated using an electromagnetic transient program—PSCAD/EMTDC. [ABSTRACT FROM AUTHOR]