Analysis of a power conditioning system for superconducting magnetic energy storage (SMES)

A power conditioning system (PCS) which can be utilized for the compensation of nonlinear and pulsating loads is analyzed in this paper. The PCS consists of a voltage source inverter and a DC current chopper, and uses a SMES as its energy storage device. The whole system is controlled by three regulators acting on the superconducting coil stored energy, the DC-link voltage, and the inverter AC currents. Numerical simulations have been carried out by PSpice to verify the performance of the PCS in different operating conditions.