Modular power converter with superconducting magnetic energy storage for electric power distribution system — Analysis and simulation

This paper describes selected issues concerning realization of energy storage system (ESS) designed to operate in power distribution system. This paper presents a modular approach of 300 kVA power converter operating with superconducting magnetic energy storage (SMES), which gives high dynamics together with high power and suitable capability for instantaneous energy storage. Analysis and simulation studies of selected power converter topologies are conducted, which are also commonly used to connect electric power distribution system and energy storage system. In order to verify assumed technical parameters, a single prototype of ESS is presented together with experimental results. Proposed solution supports scalability of the system in power as well as in energy storage capacity of ESS. Presented full scale prototype module is a result of conducted analysis and proposition for future renewable energy storage installations.