APPLICATION OF A SUPERCONDUCTING MAGNETIC ENERGY STORAGE UNIT IN AN

This paper discusses the use of a Superconducting Magnetic Energy Storage (SMES) unit in an HVDC system. The impact of converter station faults on the torsional forces induced in turbine-generator shafts with and without using a Superconducting Magnetic Energy Storage (SMES) unit will be explored. In this context, investigations have been conducted on a large turbine-generator unit connected to an HVDC system. Faults considered are fire-through, misfire, and a short circuit across the inverter station after steady state had been reached. The results of these investigations are studied using an electromagnetic transient program PSCAD/EMTDC and they are presented in the form of typical time responses as well as harmonic analysis