Superconducting Magnetic Energy Storage for Seamless Mode Switching in a DC Microgrid

To compensate for the instantaneous high-power demand during mode switching between grid-connected and islanded operation in a DC microgrid, the superconducting magnetic energy storage (SMES) based scheme with multi-mode control is proposed in this paper. A DC microgrid model with SMES was built with MATLAB/Simulink platform, and the performance of proposed scheme was simulated and analyzed. The results demonstrate that the proposed scheme can improve transient stability of the DC microgrid during mode switching as well as realize smooth transition of different control modes of SMES.