Comparison between a crowbar and an R-SFCL to improve Fault Ride-Through Capacity of DFIG-based Wind Turbines

Author(s)

Arduini, Fernando R. ; Asada, Eduardo N. ; Bellmunt, Oriol G. ; IEEE

• Document type: Journal article
• Source: 2021 IEEE MADRID POWERTECH; v. N/A, p. 5-pg., 2021-01-01.

Abstract

The Fault Ride-Through capacity is increasingly being demanded for wind turbines connected to the distribution networks. For DFIG-based turbines, achieving this requirement is even more difficult since this topology is vulnerable to voltage sags. The most popular solution employed for DFIG to ride through short-duration faults is crowbar protection, however other potential strategies have been presented in the literature. This paper aims to compare the performance between the crowbar and the resistive-type superconducting fault current limiter placed at the DFIG rotor side. For each scheme, different crowbar and R-SFCL resistances and activation currents were investigated to make the comparison fair. The results showed that the R-SFCL performed better in improving the FRT capacity of a distributed DFIG. (AU)

• FAPESP's process: 18/08059-8 - Strategies for improvement of fault ride-through capability of DFIG wind generators
• Grantee: Fernando Ribeiro Arduini
• Support Opportunities: Scholarships in Brazil - Master