  In this paper, a new dual function fault current limiter-dynamic voltage
restorer (FCL-DVR) topology is proposed. The proposed structure, in addition to
performing routine FCL tasks, can be used to improve the voltage quality of
point of common coupling (PCC). A salient feature of this FCL-DVR is its
reduced number of semiconductor switches and gate drive and control circuit
components. Perhaps, variety structure of FCL-DVR have been proposed but most
distinctive feature of proposed structure is lower power loss. The operation
modes and the control strategy of the FCL have been presented and studied. In
addition, the proposed structure has been compared with other structures to
prove the efficiency of proposed structure. The simulation results as well as
experimental outcomes from a laboratory scaled-down prototype are provided,
which prove the efficiency and feasibility of the proposed structure.
