Search

This paper presents a simplified superconducting magnetic energy exchange (SMEE) model for the potential use in the parameter design and performance evaluation of superconducting magnetic energy storage (SMES) devices prior to their practical developments and applications in modern power system. In this model, the targeted power system applications are transformed into equivalent energy exchange demands for the SMES coils in a simplified DC power network without conventional DC-AC power devices. Both the steady-power and dynamic-power energy exchange simulations are carried out to clarify the feasibility of the proposed SMEE model for the design, optimization and evaluation of a practical SMES device. [ABSTRACT FROM AUTHOR]

This paper presents a novel concept of hybrid energy transfer considering the multipurpose utilization of liquefied shale gas (LSG), liquefied nitrogen (LN 2 ) and superconducting DC cable (DC SC). For the hybrid energy generation, shale gas (SG) mined from the shale gas areas is used to produce a part of LSG through a series of SG liquefiers, a part of electric power through a series of SG generators and a part of LN 2 through a series of gas nitrogen (GN 2 ) liquefiers. For the hybrid energy transfer, two types of coaxial-type and axis-aligned-type pipe arrangements are proposed and discussed. In addition, considering the heat leakage from the cryogenic LN 2 to room-temperature environment, structural design and consideration of intermediate LN 2 -supply and GN 2 -decompression channel distributed along with the long-distance hybrid energy transfer system are also presented. [ABSTRACT FROM AUTHOR]