Inductive Fault Current Limiters in VSC-HVDC Systems: A Review

Abstract

Fast emerging fault current levels in high voltage direct current (HVDC) systems has always been a significant obstacle to building a safer and more reliable grid. Inductive fault current limiters (FCLs), compared with its resistive counterpart, are very effective in restricting the fault rising speed that causes major damage during the whole fault process. In this study, a comprehensive review of the methods used for building inductive type FCLs in HVDC systems is presented. The fault current characteristics of the modern HVDC system is discussed to obtain the basic requirements for the FCL. On the basis of different technological domains, various inductive-type FCL topologies and devices are well categorized and analyzed. After the overall discussion and comparison, representative works, as well as new progress and future prospects, are conveyed in detail. One may find the content of this study helpful as a detailed literature review or a practical technical guidance of this field.

Voltage Restoration Control for Microgrid With Recurrent Wavelet Petri Fuzzy Neural Network

“…FCLs are proper means for reducing fault current level in the microgrid system. Considering that a large inductor can present extremely large impedance to system with high frequency component, the inductive FCLs, compared with its resistive counterpart, are very effective in restricting the rising speed of the short-circuit current of the diesel generator which may cause major damage during the grid faults [39]- [41]. Therefore, a three-phase inductive FCL is connected in series with the diesel generator and the microgrid system as shown in Fig.…”