Fault Current Limiter Dynamic Voltage Restorer (FCL-DVR) with Reduced Number of Components

TL;DR

This paper introduces a novel FCL-DVR topology that combines fault current limiting and voltage restoration functions with fewer components, resulting in lower power loss and improved efficiency, validated through simulations and experiments.

Contribution

A new dual-function FCL-DVR design with fewer semiconductor switches and components, enhancing efficiency and reducing power loss compared to existing structures.

Findings

Reduced number of semiconductor switches and components.

Lower power loss compared to other FCL-DVR structures.

Experimental validation confirms efficiency and feasibility.

Abstract

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.