Design of a 50 kJ superconducting magnet energy storage system coil using parametric study

Methods like parametric sweep and sensitivity analysis are used in many engineering applications to find the optimum dimensions. The design of the Superconducting Magnet Energy Storage (SMES) System using the derivative-based optimization method is not possible due to the absence of a closed-form expression of stored energy in terms of dimensions. The operating current depends upon the geometry as well as the B-I characterization of the magnet. 50 kJ SMES dimensions were optimized using parametric study within the limits of maximum and minimum values. The finite element method (FEM) based numerical method is used in simulation software COMSOL along with MATLAB to perform the parametric studies to obtain the suitable dimensions for 50 kJ SMES. Plots for stored energy, stress, inductance, and operating current for varying dimensions are computed to determine the appropriate dimension of 50 kJ SMES. (author)