Featured Paper by S. Roy & G. Konar
Energy storage is an essential component for hybrid power system using non-conventional energy resources. Batteries, compressed air energy storage, pumped hydro plants etc. have been developed for storage. However, these have demerits like losses involved in energy conversion and time delay. Superconducting Magnetic Energy Storage (SMES) can be a good alternative as it stores electrical energy in the form of magnetic energy involving no loss during supplying the same. Solenoidal or toroidal low temperature superconducting coils (LTS) are in use for SMES [1]. First and second generation high temperature superconducting (HTS) coils are in operation either independently or with LTS coils in hybrid mode [2,3]. Such a hybrid coil made of BSCCO – 2212 (inner coil) and Nb-Ti (outer coil) was designed [3]. Thermal runaway and excitation tests of the prototype made of the same coil were performed [4,5]. In this work, the 3-dimensional magnetic field distribution of this hybrid coil is simulated using COMSOL Multiphysics. 3D Magnetic Fields section of the AC/DC module is considered for geometry (Figure 1). Preset Studies>Stationary option is selected for DC operation.
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